Abstract

The luminous fiber according to the present invention comprises a flat luminous pigment, a coloring pigment, and a resin, wherein: the flat luminous pigment is an iron oxide-coated flat aluminum particle having a flat aluminum particle and an iron oxide layer covering the flat aluminum particle, or is an iron oxide-coated flat silicon dioxide particle having a flat silicon dioxide particle and an iron oxide layer covering the silicon dioxide particle; and the amount of elemental iron in the flat luminous pigment is 5-400 parts by mass with respect luminous pigment.

IPC Classes  ?

• D01F 1/04 - Pigments
• C08K 3/105 - Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic System
• C08K 7/04 - Fibres or whiskers inorganic
• C08K 9/02 - Ingredients treated with inorganic substances
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

In order to provide a writing ball capable of suppressing wear of a ball seat of a ballpoint pen tip and obtaining stable ink outflow, a writing ball that is a sphere, the sphere comprising, at least: a first hard component containing a first metal; a second hard component containing a second metal; and a binding component, the writing ball comprising: a first outer surface from which the first hard component is exposed, the first outer surface being an outermost surface of the sphere; and a recess including, as a bottom surface, a second outer surface from which the second hard component is exposed, the second outer surface being recessed inward from the first outer surface, wherein the first outer surface includes a smooth surface is provided.

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds
• B43K 7/00 - Ball-point pens

Abstract

A writing implement (10) comprises: a shaft cylinder (20) having an opening (22a); a writing member (12) having a penpoint (13); a protruding/retracting mechanism (40) that makes the penpoint (13) protrude from or retract into a the opening (22a); and a sealing mechanism (70) that seals an accommodation space (S) for the penpoint (13) in a retracted state of the penpoint (13), wherein the sealing mechanism (70) has a lid member (72) that comes into contact with a contact surface (22b) surrounding the opening (22a) to allow for closing of the opening (22a), and a negative pressure preventing mechanism (80) that prevents the pressure inside the accommodation space (S) from being negative.

IPC Classes  ?

• B43K 24/00 - Mechanisms for selecting, projecting, retracting or locking writing units
• B43K 5/16 - Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs

Abstract

A writing implement (10) comprises a shaft cylinder (20) having an opening (22a), a writing member having a pen tip (13), a retraction mechanism (40) for causing the pen tip (13) to appear and retract from the opening (22a), and a sealing mechanism (70) for sealing an accommodating space (S) for the pen tip (13) in a retracted state of the pen tip (13), the sealing mechanism (70) having a lid member (71) that rotates about a rotary shaft (79) to block and unblock the opening (22a), and a guide part (80) that guides the lid member (71), the lid member (71) having a blocking part (72) that has a first side surface (74) and a blocking surface (73) that blocks the opening (22a), and a leg part (76) that supports the blocking part (72), and the guide part (80) having a first guide surface (82) that faces the first side surface (74) when the lid member (71) is blocking the opening (22a) and does not face the first side surface (74) when the lid member (71) is unblocking the opening (22a).

IPC Classes  ?

• B43K 24/00 - Mechanisms for selecting, projecting, retracting or locking writing units
• B43K 5/16 - Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs

Abstract

This writing instrument comprises a pen member that includes a plurality of plate materials stacked in the thickness direction. The pen member extends in an axial direction orthogonal to the thickness direction. The pen member has, between two plate materials adjacent to each other in the thickness direction, an ink flow path extending to a leading end in the axial direction. In a cross-section along both the thickness direction and the axial direction, each plate material included in the plurality of plate materials includes, on the leading ends, inclined surfaces inclined to the same side in the axial direction.

IPC Classes  ?

• B43K 1/02 - Split nibs
• B43K 5/00 - Pens with ink reservoirs in holders, e.g. fountain-pens

Abstract

This writing instrument comprises a pen core, a nib, a neck part, and an ink reservoir. The pen core has: an ink groove that has a rear end in communication with the inside of the ink reservoir and has a front end in communication with a slit; an air groove that has a rear end in communication with the inside of the ink reservoir and has a front end opened in the external surface of the pen core and that has a wider groove width than the ink groove; a plurality of communication grooves that connect between the air groove and the ink groove; and a plurality of comb-shaped grooves that are in communication with the ink groove and that are arranged side by side in the front-rear direction. The plurality of communication grooves include: a first communication groove which is connected to the front-side portions of the ink groove and the air groove; and a second communication groove which is connected to the rear-side portions of the ink groove and the air groove.

IPC Classes  ?

• B43K 5/18 - Arrangements for feeding the ink to the nibs

Abstract

The present invention comprises: a shaft tube (2); and a writing body (3) that is accommodated in the shaft tube (2) so as to be movable anteroposteriorly. The writing body (3) has a pen point (31) provided to a front end thereof, and the pen point (31) is configured to be capable of protruding from and retracting to a front-end hole (21) of the shaft tube (2). The shaft tube (2) has provided to the inner circumferential surface thereof an annular supporting part (4) that supports the outer circumferential surface of the writing body (3). The annular supporting part (4) comprises a supporting portion for supporting the outer circumferential surface of the writing body (3). Upon contacting the outer circumferential surface of the writing body (3), the supporting portion can move in a radially-expanding direction or anteroposterior direction. The annular supporting part (4) partially comprises an elastic deformation portion that can be elastically deformed in preference to the remaining portion of the annular supporting part (4) upon contacting of the supporting portion with the outer circumferential surface of the writing body (3).

IPC Classes  ?

• B43K 24/02 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
• B43K 7/00 - Ball-point pens
• B43K 7/12 - Ball-point pens with retractable ball points
• B43K 24/06 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means
• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons

Abstract

An oil-based ballpoint pen includes: a ballpoint pen tip at a tip part of an ink storage cylinder, and an oil-based ballpoint pen ink composition stored in the ink storage cylinder, the oil-based ballpoint pen ink composition containing a colorant, an organic solvent having a boiling point of 140° C. or lower, and a resin, wherein the oil-based ballpoint pen ink composition has an ink viscosity of 300 mPa·s or less at 20° C. and a shear rate of 200 sec−1, an ink consumption of the oil-based ballpoint pen per a writing distance of 100 m is 80 mg or more, and a ratio of a ball diameter B (mm) to an ink consumption A (mg) per a writing distance of 100 m satisfies 100

Abstract

This ink cartridge for a writing instrument comprises an ink containing tube (26) which extends in a front-rear direction along a central axis (O) and in which ink is contained, and a pen-tip unit (27) which is disposed in front of the ink containing tube (26) and is connected to the ink containing tube (26). The ink containing tube (26) includes a sealing portion (28) that seals an opening of a front-end portion of the ink containing tube (26). The pen-tip unit (27) includes: a coupling tube (23) which is disposed on a rear part of the pen-tip unit (27), extends in the front-rear direction, and has the front-end portion of the ink containing tube (26) inserted therein; an ink storage compartment (24) which is positioned inside the coupling tube (23) and in which ink is stored; and an opening means (25) which is disposed inside the coupling tube (23) and which, when the front-end portion of the ink containing tube (26) is inserted into the coupling tube (23), opens the sealing portion (28) inside the ink storage compartment (24).

IPC Classes  ?

• B43K 5/14 - Exchangeable ink cartridges
• B43K 7/02 - Ink reservoirs; Ink cartridges

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens; highlighter pens; highlighting markers; writing instruments; stationery.

Abstract

A friction unit includes a friction piece and a retention portion, the friction piece being configured to allow generation of frictional heat to cause handwriting in thermochromic ink to undergo a thermochromic change and the retention portion being configured to allow retention of the friction piece and attachment to and detachment from a barrel or cap of a thermochromic writing instrument. The retention portion has a tubular side wall forming an internal space opening at least downward, the side wall has at least one vent hole formed to communicate with the internal space, and air is allowed to flow between the vent hole, the internal space, and the downward opening.

IPC Classes  ?

• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• B43K 23/12 - Protecting means, e.g. caps for pens
• C09D 11/50 - Sympathetic, colour-changing or similar inks

Abstract

The present invention is provided with an axial cylinder (1) extending in an axial direction along a center axis; and a writing member disposed inside the axial cylinder (1). The axial cylinder (1) has fiber-like protrusions (6) protruding radially outward from the outer circumferential surface of the axial cylinder (1), the plurality of fiber-like protrusions (6) are provided side by side on the outer circumferential surface, and each of the fiber-like protrusions (6) has: a plurality of rib sections which extend in predetermined directions when viewed from the outside in the radial direction, and which are disposed side by side in a width direction perpendicular to the predetermined directions; and a step section which is disposed between rib sections adjacent to each other in the width direction or disposed on the end section in the width direction of the rib sections, and extends in the predetermined direction.

IPC Classes  ?

• B43K 3/00 - Nib holders
• B43K 25/02 - Clips

Abstract

An ink composition for an oil-based ballpoint pen, said composition containing a colorant, an organic solvent, and a 12-hydroxy fatty acid, said ink composition being characterized in that the ink viscosity thereof at 20ºC and a shear rate of 200 sec-1 is 300 mPa∙s or more.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments

Abstract

211) between the first inclined surface and the center axis line.

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; stationery.

Goods & Services

Crayons; pastels [crayons]; writing instruments; stationery; drawing paper; printed matter; children's activity books; coloring pictures; coloring books. Toys; dolls.

Abstract

Provided is a multi-core writing implement (1) in which a plurality of writing bodies (2) are accommodated inside a shaft (9), and which comprises an extension/retraction mechanism that makes it possible to selectively extend and retract one of the plurality of writing bodies (2) from a front end opening (9H) provided at one end part of the shaft (9) in the lengthwise direction. The plurality of writing bodies (2) comprise at least one thermochromic writing body (2A) that accommodates a reversibly thermochromic ink composition and at least one non-thermochromic writing body (2C) that accommodates a non-thermochromic ink composition. The non-thermochromic ink composition is an oil-based ink composition containing a pigment. A friction member (10) is provided at the other end part of the shaft (9) in the lengthwise direction.

IPC Classes  ?

• B43K 24/12 - Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operated by means sliding in longitudinally-slotted casings
• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• C09D 11/18 - Writing inks for use in ball-point writing instruments

Abstract

This aqueous ink composition for writing instruments contains water, a coloring agent, and sulfuric acid esterified cellulose fibers in which at least a portion of hydroxyl groups of cellulose fibers is converted into a sulfuric acid ester.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments
• B43K 7/00 - Ball-point pens
• B43K 7/01 - Ball-point pens for low viscosity liquid ink
• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons

Abstract

A shaft cylinder having an opening at a front end thereof, a tip holder movable in an axial direction of the shaft cylinder, a tip projectable and retractable in conjunction with a movement of the tip holder, an annular member loosely fitted onto an inner periphery of the opening of the shaft cylinder to be movable in an axial direction of the shaft cylinder with respect to the shaft cylinder, and an elastic member capable of connecting the tip holder and the annular member such that the tip holder and the annular member are movable relatively to each other. A contact surface tapered toward the front end is formed on at least a part of an outer periphery of the annular member. A cutout is formed on the annular member such that an inner diameter of the annular member is reduced when a load is received by the contact surface.

IPC Classes  ?

• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
• B43K 7/12 - Ball-point pens with retractable ball points

Goods & Services

Drawing toys; infant toys; dolls Crayons; writing instruments; stationery; drawing paper; printed children's activity books; printed children's coloring pages; printed coloring books

Abstract

This ink composition for a writing utensil contains at least water and pigments including a guanine pigment.

IPC Classes  ?

• C09D 11/17 - Writing inks characterised by colouring agents
• B43K 7/00 - Ball-point pens
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material

Abstract

Provided is an ink composition for writing utensils, comprising at least a pigment containing a guanine pigment, and a solvent, wherein the average particle size of the guanine pigment is 0.2 to 0.95 μm.

IPC Classes  ?

• C09D 11/17 - Writing inks characterised by colouring agents
• B43K 7/00 - Ball-point pens
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material

Abstract

3 or more.

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds
• B43K 7/10 - Arrangements for feeding the ink to the ball points

Abstract

[Problems] To provide a reversibly thermochromic composition having excellent contrast between a colored state and a decolored state, and excellent light resistance, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition. [Problems] To provide a reversibly thermochromic composition having excellent contrast between a colored state and a decolored state, and excellent light resistance, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition. [Solution] Disclosed is a reversibly thermochromic composition including: (a) an electron-donating color-developing organic compound; (b) a combination of a compound having a specific structure as an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition.

IPC Classes  ?

• C09K 9/02 - Organic tenebrescent materials
• C09B 67/22 - Mixtures of different pigments or dyes or solid solutions of pigments or dyes
• C09B 11/24 - Phthaleins containing amino groups
• C09B 67/02 - Dyestuff preparations characterised by special physical forms, e.g. tablets, films
• C09B 67/46 - Dispersions
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/50 - Sympathetic, colour-changing or similar inks
• C09D 11/18 - Writing inks for use in ball-point writing instruments
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C08K 9/10 - Encapsulated ingredients
• C09D 5/26 - Thermosensitive paints
• C09D 5/29 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
• C09D 7/40 - Additives
• C09D 7/41 - Organic pigments; Organic dyes

Abstract

A mechanical pencil (10) comprising: a barrel (20) including a main shaft (22); a lead-feeding mechanism (30) for feeding a writing lead (80); a weight body (50) disposed to be movable back and forth with respect to the main shaft; an operating body (61) rotatable about a central axis (A) with respect to the main shaft; a moving member (64) which is disposed to be movable back and forth with respect to the operating body and which is movable between a regulated position and a non-regulated position behind the regulated position; a regulating member (68) which regulates the back-and-forth movement of the weight body when the moving member is located at the regulated position; at least two cam slopes (63a) provided to one of the operating body and the moving member; and at least two abutting portions (64b) provided to the other of the operating body and the moving member, wherein the rotation of the operating body about the central axis causes the abutting portions to move along the cam slopes while the cam slopes and the abutting portions contact each other.

IPC Classes  ?

• B43K 21/16 - Writing-core feeding mechanisms with stepwise feed of writing-cores

Abstract

A writing implement (1) is configured so that a pen tip (4) can be moved in an axial direction by writing pressure during writing, and the writing implement (1) is provided with a switching mechanism (10) capable of switching between a state in which movement of the pen tip (4) in the axial direction is restricted and a state in which the movement of the pen tip (4) in the axial direction is not restricted.

IPC Classes  ?

• B43K 7/12 - Ball-point pens with retractable ball points
• B43K 5/00 - Pens with ink reservoirs in holders, e.g. fountain-pens

Abstract

−1. A ball has a ball diameter of 0.5 mm or less. A tip distal end portion includes a first swaged portion and a second swaged portion. The first swaged portion has an inclination angle with a range of 90 degrees to 100 degrees inclusive. The second swaged portion is provided closer to a distal end side of a ballpoint pen tip than the first swaged portion and has an inclination angle with a range of 110 degrees to 130 degrees inclusive. An angle of a bottom wall of a ball holding chamber is the same as the inclination angle of the second swaged portion.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments
• B43K 7/02 - Ink reservoirs; Ink cartridges
• B43K 7/10 - Arrangements for feeding the ink to the ball points
• B43K 7/12 - Ball-point pens with retractable ball points

Abstract

Disclosed herein are a water-based ink composition for writing instruments excellent not only in handwriting fastness, such as handwriting water resistance, and dispersion stability but also in various properties such as dry-up resistance and handwriting density and a writing instrument using the same. The water-based ink composition for writing instruments contains a self-dispersible pigment, α-glucan or an α-glucan derivative, and water. The writing instrument contains the water-based ink composition for writing instruments. Also disclosed herein is a cartridge ink for writing instruments containing the water-based ink composition for writing instruments.

IPC Classes  ?

• C09D 105/00 - Coating compositions based on polysaccharides or on their derivatives, not provided for in groups or
• C09D 11/17 - Writing inks characterised by colouring agents
• B43K 8/00 - Pens with writing-points other than nibs or balls

Abstract

[Problems] To provided are a reversibly thermochromic composition that shows black during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in light resistance and a microcapsule pigment encapsulating the reversibly thermochromic composition. [Problems] To provided are a reversibly thermochromic composition that shows black during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in light resistance and a microcapsule pigment encapsulating the reversibly thermochromic composition. [Solution] Disclosed is a reversibly thermochromic composition including: (a) a fluoran derivative having a specific structure as an electron-donating color-developing organic compound; (b) a compound having a specific structure as an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition.

IPC Classes  ?

• C09K 9/02 - Organic tenebrescent materials
• C09B 67/02 - Dyestuff preparations characterised by special physical forms, e.g. tablets, films
• C09B 11/14 - Preparation from aromatic aldehydes, aromatic carboxylic acids or derivatives thereof, and aromatic amines
• C09D 5/02 - Emulsion paints
• C09D 5/26 - Thermosensitive paints
• C09D 5/29 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
• C09D 7/41 - Organic pigments; Organic dyes
• C09D 7/40 - Additives
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09D 11/50 - Sympathetic, colour-changing or similar inks
• C09D 11/17 - Writing inks characterised by colouring agents
• C08K 9/10 - Encapsulated ingredients
• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Abstract

A refill (10) for a writing instrument comprises an ink-containing cylinder (13) containing ink (14) therein, a nib (11) provided on the tip side of the ink-containing cylinder (13) and having a writing part (111), and a nib holder (12) by which the ink-containing cylinder (13) and the nib (11) are linked. The ink-containing cylinder (13) is composed of a cylindrical metal body. The rear-end outer peripheral surface of the nib holder (12) and the front-end inner peripheral surface of the ink-containing cylinder (13) are press-fitted together by insertion. A circular crimped part (131) is formed in the front-end outer peripheral surface of the ink-containing cylinder (13), and the outer diameter of the ink-containing cylinder (13) near the circular crimped part (131) is ϕ4.5 mm or more. The circular crimped part (131) is composed of straight surface (132) having a constant outer diameter in the axial direction and tapered surfaces (133) formed on both the front and rear sides of the straight surface (132).

IPC Classes  ?

• B43K 7/08 - Preventing leakage

Abstract

Stationery packaging capable of housing stationery, the stationery packaging comprising a paper substrate and a heat seal layer provided on the paper substrate.

IPC Classes  ?

• B65D 85/28 - Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles for pencils or pens
• C09D 11/17 - Writing inks characterised by colouring agents

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; stationery.

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; stationery.

Abstract

[Problem] To miniaturize a mechanism, in a writing implement, for moving a writing member forward by a length longer than the movement length of a knock member. [Solution] A writing implement (10) including: a barrel (20) that has a front-end opening part (20a); a writing member (12) that is disposed inside the barrel; and an appearance/disappearance mechanism (40) that makes a tip end of the writing member appear from or disappear into the front-end opening part. The appearance/disappearance mechanism has: a first slit (81) that extends spirally around a central axis (A) of the barrel and that can rotate in a circumferential direction (dc); a second slit (82) that is disposed at a front side of the first slit, that extends spirally around the central axis, and that can rotate in the circumferential direction integrally with the first slit; a first engagement member (91) that is engaged with the first slit; and a second engagement member (92) that is engaged with the second slit. The movement length (L2) of the second engagement member in the axial direction (da) when the first slit and the second slit integrally rotate in the circumferential direction is longer than the movement length (L1) of the first engagement member in the axial direction.

IPC Classes  ?

• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
• B43K 5/16 - Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs
• B43K 7/12 - Ball-point pens with retractable ball points

Abstract

An ink retention member (4) comprises an ink retention portion (40) composed of ink retention grooves (43) and ink guiding grooves (44). The ink retention member (4) has a first lateral hole (46) penetrating radially therethrough and being in communication with an inner hole (45). The first horizontal hole (46) and the ink guiding grooves (44) are formed so as not to be in communication with each other in a transverse cross-section. The first horizontal hole (46) is provided in the rear-half of the ink retention portion (40). The ink retention member (4) has a second horizontal hole (47) disposed forwardly of the first horizontal hole (46), radially penetrating through the ink retention member (4), and being in communication with the inner hole (45). The first horizontal hole (46) and the second horizontal hole (47) are each provided axially through at least one comb tooth (41) and in communication with an ink retention groove (43) adjacent to the comb tooth (41).

IPC Classes  ?

• B43K 5/18 - Arrangements for feeding the ink to the nibs
• B43K 7/10 - Arrangements for feeding the ink to the ball points
• B43K 8/04 - Arrangements for feeding ink to writing-points

Abstract

The present invention provides a reversibly thermochromic microcapsule pigment which easily changes, upon heating, from a decolored state to a colored state and sharply returns again to the decolored state, at a temperature in the range of living environmental temperatures or at a temperature around daily-living temperatures. This reversibly thermochromic microcapsule pigment is one obtained by microencapsulating a reversibly thermochromic composition comprising (A) an electron-donating color-assuming organic compound, (B) a 4-hydroxybenzoic acid ester compound represented by general formula (1) as an electron-accepting compound, (C) a compound, e.g., a chain hydrocarbon, as a reaction medium for reversibly causing electron transfer reactions between the (A) and the (B), (D) a linear dibasic acid compound having 3-22 carbon atoms, and (E) a compound, e.g., an aromatic hydrocarbon, having a melting point of 50°C or higher. (In formula (1), R represents a C12-C22, linear or branched alkyl group.)

IPC Classes  ?

• C09K 9/02 - Organic tenebrescent materials
• C09B 57/00 - Other synthetic dyes of known constitution
• C09B 67/08 - Coated particulate pigments or dyes

Abstract

This article-containing packaging body is provided with: a front surface part (2) and a rear surface part (3) having a rectangle shape; a fixation part (41) to which the front surface part (2) and the rear surface part (3) are fixed; a bag-shaped part (42) in which an article (7) extending in a longitudinal direction is accommodated; and the article (7). The bag-shaped part (42) is formed by providing the fixation part (41) on at least three sides of the front surface part (2) and the rear surface part (3). At least one of the front surface part (2) and the rear surface part (3) contains a paper base material, and an exposure part (43) at which an inner surface (4) at one end in a longitudinal direction is exposed to the outside is provided on one of the front surface part (2) and the rear surface part (3).

IPC Classes  ?

• B65D 75/20 - Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
• B65D 75/64 - Tabs formed by unsecured portion of wrapper
• B65D 85/28 - Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles for pencils or pens

Abstract

[Problem] To provide an aqueous ink composition for writing utensils which is able to form written characters having excellent dryability and form clear written characters inhibited from striking through to the back and which, even when containing a pigment as a colorant, can be inhibited from suffering aggregation or precipitation of the pigment, and a writing utensil accommodating the ink composition. [Solution] An aqueous ink composition for writing utensils which comprises a colorant, water, and a specific polyoxyethylene aryl ether and has a contact angle of 40-70° with writing paper A in accordance with old JIS P3201; and a writing utensil including the aqueous ink composition accommodated in the interior thereof.

IPC Classes  ?

• C09D 11/16 - Writing inks
• B43K 5/00 - Pens with ink reservoirs in holders, e.g. fountain-pens
• B43K 7/00 - Ball-point pens
• B43K 7/01 - Ball-point pens for low viscosity liquid ink
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material

Abstract

In order to provide a writing ball by which friction of a ball seat of a ballpoint pen tip is suppressed and a stable ink outflow is obtained, a writing ball 10A, which is a spherical body including at least a first hard component containing first metal, a second hard component containing second metal, and a binding component, comprises: a first outer surface 2A being the outermost surface of the spherical body from which the first hard component is exposed; and a recessed portion 6A having a second outer surface 4A as a bottom surface, from which the second hard component is exposed and which is recessed inwardly from the first outer surface 2A. The first outer surface 2A has a smoothened surface.

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds
• B43K 7/00 - Ball-point pens

Goods & Services

Ceramic processing and providing information relating thereto; metal treating and providing information relating thereto; processing of rubber and providing information relating thereto; processing of plastics and providing information relating thereto; woodworking and providing information relating thereto; paper treating and providing information relating thereto; stone treating and providing information relating thereto.

Abstract

Provided is a method for manufacturing a recycled resin composition, the method enabling horizontal recycling.　The method for manufacturing a recycled resin composition includes: a step for melting and kneading a molded body containing a resin base material and a colored layer that includes a coloring material which is irreversibly decolored by thermal stimulus; and a step for irreversibly decoloring by thermal stimulus.

IPC Classes  ?

• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 5/00 - Use of organic ingredients
• C08K 9/10 - Encapsulated ingredients
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

Provided is a thermochromic writing instrument, including thermochromic ink; and a friction unit configured to cause handwriting in the thermochromic ink to undergo a thermochromic change by frictional heat. The thermochromic ink includes a metallic luster pigment added thereto. The thermochromic writing instrument is provided with an attachment hole to attach the friction unit. The friction unit includes an attachment portion to be inserted into the attachment hole and a friction portion in a convex curved surface shape projecting from the attachment hole. The friction portion has a volume Ve and the metallic luster pigment has a volume Vp, the volume Ve and the volume Vp satisfying 5 □ Ve/Vp □ 35, the friction portion 32 has a maximum outer diameter D and a projection length L, the diameter D and the length L satisfying 0.1 □ L/D □ 1.5, and a material for the friction unit 3 has a value of Shore A hardness in accordance with JIS K 7215 of Japan Industrial Standard measured immediately after starting contact with an indenter in a range of 60 or more and 85 or less and has a value (ΔHS) of the Shore A hardness defined by a following equation of 0 or more and less than 5, ΔHS=(Shore A Hardness Value immediately after Starting Contact with Indenter)−(Shore A Hardness Value 15 seconds after Starting Contact with Indenter).

IPC Classes  ?

• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Goods & Services

Ceramic processing and providing information relating thereto; metal treating and providing information relating thereto; processing of rubber and providing information relating thereto; processing of plastics and providing information relating thereto; woodworking and providing information relating thereto; paper treating and providing information relating thereto; stone treating and providing information relating thereto

Goods & Services

Toys; dolls.

Goods & Services

Laboratory apparatus and instruments; measuring or testing machines and instruments; pedometers; power distribution or control machines and apparatus; batteries and cells; electric or magnetic meters and testers; electric wires and cables; connectors for optical fibers; photographic machines and apparatus; cinematographic machines and apparatus; optical machines and apparatus; spectacles [eyeglasses and goggles]; optical glass; electrothermic glass; life-saving apparatus and equipment; telecommunication machines and apparatus; phonograph records; electronic control apparatus; electronic navigating apparatus; electronic testing apparatus; electronic monitoring apparatus, other than for medical purposes; computer hardware; computers for a coordinate input; electronic pens; electronic agendas; floppy disks for computers; digital recording media; encoded magnetic cards with display function; computers for cafeteria management systems using encoded magnetic cards with display function; magnetophoretic displays and apparatus therefor; apparatus for displaying information using lcd; ozonisers [ozonators]; electrolysers [electrolytic cells]; sports training simulators; simulators for the steering and control of vehicles; rotary converters; phase modifiers; electric buzzers; railway signal apparatus, luminous or mechanical; vehicle breakdown warning triangles; road signs, luminous or mechanical; fire alarms; gas alarms; gloves for protection against accidents; fire extinguishers; fire hose nozzles; sprinkler systems for fire protection; anti-theft warning apparatus; safety helmets; fireproof garments; dust masks; gas masks; magnetic cores; resistance wires; electrodes, other than welding electrodes or medical electrodes; welding masks; exposed cinematographic films; exposed slide films; slide film mounts; recorded video discs and video tapes; automatic money changing machines; mechanisms for coin-operated car parking gates; cash registers; slide-rules; coin counting or sorting machines; electric sign boards for displaying target figures, current outputs or the like; photo-copying machines; manual calculators; mathematical instruments; time and date stamping machines; time clocks [time recording devices]; electric calculators; punched card office machines; voting machines; billing machines; postage stamp checking apparatus; counting machines with writing instruments; weight belts for scuba diving; wet suits for scuba diving; air tanks for scuba diving; breathing apparatus for underwater swimming; weight belts for divers; regulators for scuba diving; egg-candlers; metronomes; stylus pen for touch screen; stylus pen with dual use as a writing instrument; stylus combined with writing instrument; pens with conductive points for touch screen devices; nibs for electronic pens.

Abstract

A soft-member attachment structure includes an attachment hole provided through a rear end portion of a barrel. The barrel configures a thermochromic writing instrument, along a longitudinal central axis and having an inner circumferential surface between two openings located at an upper end and a lower end; an attachment portion located under a large diameter portion of a soft member used for a thermochromic change and having a diameter being smaller than a diameter of the large diameter portion and allowing insertion into the attachment hole; a straight internal hole provided along a longitudinal central axis of the soft member and opening at least at a lower end of the soft member; and a rod-like inner core having an outer diameter allowing insertion into the internal hole, a length to be placed within the internal hole, and an outer circumferential surface contacting an inner circumferential surface of the internal hole.

IPC Classes  ?

• B43L 19/00 - Erasers, rubbers, or erasing devices; Holders therefor
• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; stationery.

Goods & Services

Toys; dolls.

Abstract

An aqueous ink composition for ballpoint pens, the ink composition comprising a color pigment, a brilliant pigment, microcapsule particles, a shear-thinning tackifier, and water, wherein, with respect to the total mass of the ink composition, the percentage content of carbon black in the color pigment is 0-2.0 mass%, the percentage content of the brilliant pigment is 0.1-2.0 mass%, and the percentage content of the microcapsule particles is 1.5-10 times of the percentage content of the brilliant pigment.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments
• B43K 7/00 - Ball-point pens
• B43K 7/02 - Ink reservoirs; Ink cartridges

Abstract

[Problem] To provide a knock-type writing instrument capable of easily and reliably attaching an operating body detached from a feeding mechanism of a writing body to the feeding mechanism. [Solution] The knock-type writing instrument is provided with: a shaft cylinder (2); a writing body (8) accommodated inside the shaft cylinder (2); a feeding mechanism (3) feeding the writing body (8) forward; and an operating body (4) arranged at the rear of the feeding mechanism (3). The knock-type writing instrument has a handwriting transforming member (5) attached in front of the operating body (4) and used to remove, thermally discolor, or hide handwriting written by means of the writing body (8). The operating body (4) at least partially protrudes from the shaft cylinder (2), and is attached to be slidable back and forth and detachable with respect to the shaft cylinder (2) by a magnetic force acting between the shaft cylinder (2) and the operating body (4).

IPC Classes  ?

• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• B43K 21/00 - Propelling pencils

Abstract

A mechanical pencil has: a shaft tube; a ferrule unit supported by the shaft tube; a lead holding unit having a chuck configured to relatively move with respect to the ferrule unit to eject lead held by the same; and an indication body provided movably in an axial direction. The indication body delimits from rearward a lead storage space formed rearward the chuck in the shaft tube. The indication body located at least at a predetermined position is viewable from outside the shaft tube. A length along the axial direction between a rear end of the lead storage space and a front end of the ferrule unit, in a state where the indication body has moved most rearward along the axial direction, is equal to or more than twice a length of spare lead to be stored in the lead storage space.

IPC Classes  ?

• B43K 21/16 - Writing-core feeding mechanisms with stepwise feed of writing-cores
• B43K 21/00 - Propelling pencils

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and writing instruments; stationery

Goods & Services

Electronic pens; electronic pens [visual display units]; computer styluses; touch screen pens; stylus pen for touch screen; nibs for electronic pens; chargers for electronic pens; protective sheets affixed to surface of tablet computers; tablet computers; graphics tablets; computers; input devices for computers; personal digital assistants; telecommunication machines and apparatus. Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; writing instruments with conductive tips for touch screen devices; replacement conductive tips for touch screen devices, being parts of writing instruments; stationery.

Abstract

This ink composition for a writing instrument contains at least a solvent and a pigment including a uric acid pigment.

IPC Classes  ?

• C09D 11/17 - Writing inks characterised by colouring agents
• B43K 7/00 - Ball-point pens
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material

Abstract

Provided is a water-soluble sheet-like coloring material in which sheets are less likely to stick to each other, have appropriate self-standing property and flexibility, and can be quickly brought into a uniform state when dissolved in water. Provided is a water-soluble sheet-like coloring material in which sheets are less likely to stick to each other, have appropriate self-standing property and flexibility, and can be quickly brought into a uniform state when dissolved in water. A water-soluble sheet-like coloring material including a film-forming water-soluble polymer; a dissolution accelerator; a colorant; and a moisture-retaining agent.

IPC Classes  ?

• C09D 5/06 - Artists' paints
• C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09D 101/02 - Cellulose; Modified cellulose
• C09D 7/45 - Anti-settling agents
• C09D 7/65 - Additives macromolecular
• C09D 7/61 - Additives non-macromolecular inorganic
• C09D 7/63 - Additives non-macromolecular organic
• C09D 7/20 - Diluents or solvents

Abstract

[Problem] [Problem] To provide an oil-based ink composition for ballpoint pens and also an oil-based ballpoint pen employing the composition. The ink composition inhibits a ball seat from wearing under high pen pressure (writing load: 300 to 500 gf), improves writing feeling, and is excellent in writing performance at the beginning of handwriting, in temporal stability and in ink followability. [Problem] To provide an oil-based ink composition for ballpoint pens and also an oil-based ballpoint pen employing the composition. The ink composition inhibits a ball seat from wearing under high pen pressure (writing load: 300 to 500 gf), improves writing feeling, and is excellent in writing performance at the beginning of handwriting, in temporal stability and in ink followability. [means to solve the problem] [Problem] To provide an oil-based ink composition for ballpoint pens and also an oil-based ballpoint pen employing the composition. The ink composition inhibits a ball seat from wearing under high pen pressure (writing load: 300 to 500 gf), improves writing feeling, and is excellent in writing performance at the beginning of handwriting, in temporal stability and in ink followability. [means to solve the problem] An oil-based ink composition for ballpoint pens, comprising a colorant, an organic solvent, and a polyoxy-alkylene glyceryl ether.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments
• C09D 11/17 - Writing inks characterised by colouring agents

Abstract

This ballpoint pen (1) comprises: a barrel (2); a cylindrical tip (30) having a front edge (30b) at the front end thereof; a cylindrical body (70) disposed behind the first edge (30b); a ball receiving seat (71b) formed at the front end of the cylindrical body (70); a ball (40) held rotatably between the front edge (30b) and the ball receiving seat (71b); a restriction portion (10k) that restricts the rearward movement of the cylindrical body (70); and an elastic member (60) that urges the cylindrical body (70) forward, wherein the cylindrical body (70) has an elastic deformation portion (71d) made of a synthetic resin and has an ink passage (71t) uniformly formed along the axial direction, and the expression 1.02X

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds

Abstract

An oil-based ballpoint pen (100) comprises an ink reservoir tube (2), which has a ballpoint pen tip (4) at an end thereof, and, contained in the ink reservoir tube (2), an ink composition (10) for oil-based ballpoint pens which comprises a colorant, an organic solvent having a boiling point of 140°C or lower, and a resin. The ink composition (1) for oil-based ballpoint pens has an ink viscosity, as measured at 20°C and a shear rate of 200 sec-1, of 300 mPa·s or less. The oil-based ballpoint pen (100) has an ink consumption of 80 mg or greater per 100 m of writing distance, and the ratio of the ball diameter B (mm) to the ink consumption A (mg) per 100 m of writing distance is such that 100

Goods & Services

Electronic pens; electronic pens for visual display units; computer styluses; touch screen pens; stylus pen for touch screen being touch screen pens; nibs for electronic pens; chargers for electronic pens; protective sheets affixed to surface of tablet computers being protective films adapted for tablet computer screens; tablet computers; graphics tablets; computers; input devices for computers; personal digital assistants; telecommunication transmitters; computers for telecommunication Fountain pens; ball point pens; mechanical pencils; marking pens and writing instruments; non-electric writing instruments with conductive tips for touch screen devices; replacement conductive tips for touch screen devices, being structural parts of non-electronic writing instruments; stationery

Abstract

[Problem] To provide: a color pencil lead having exceptional color development and erasability of writing, a smooth feel, and exceptional storage stability; a method for manufacturing a color pencil lead; and a refill product comprising a color pencil lead and a refill case in which the same is accommodated. [Solution] The color pencil lead according to the present invention includes: a porous lead body that contains a body material, an inorganic binder, a coloring agent, and a high-boiling-point organic solvent having a boiling point of 250°C or higher; and a refractory liquid with which the pores of the porous lead body are filled. The color pencil lead includes bringing a coloring agent solution that contains a coloring agent and a high-boiling-point organic solvent into contact with a porous lead body obtained through firing, furthermore bringing the coloring agent into contact with an insoluble refractory liquid, and filling the voids in the porous lead body with the refractory liquid. The refill product according to the present invention comprises the color pencil lead and a case.

IPC Classes  ?

• B43K 19/02 - Pencils with graphite; Coloured pencils
• C09D 13/00 - Pencil-leads; Crayon compositions; Chalk compositions
• C09D 11/16 - Writing inks

Abstract

A mechanical pencil 10 comprises a lead dispensing mechanism 30, an operating part 50, and a spare lead storage section 40. The lead dispensing mechanism 30 is disposed within a shaft 20 and has a chuck 31 that sandwiches and holds writing lead 80. The operating part 50 moves the chuck 31 forward. The lead dispensing mechanism 30 works as a result of the operating part 50 being operated, and the writing lead 80 is projected from a front end opening 23b of the shaft 20. The spare lead storage section 40 is disposed rearward of the chuck 31, is in communication with the chuck 31, and accommodates spare writing lead 81. The spare lead storage section 40 has a spiral shape in a cross-section and has a lead storage chamber 40a extending in the axial direction.

IPC Classes  ?

• B43K 21/00 - Propelling pencils

Abstract

An attachment structure in a writing tool provided with a first component and a second component inserted into an insertion hole provided at an end of the first component. The second component is provided with a small-diameter part, a large-diameter part provided in front of the small-diameter part, and a first outer step part provided between the small-diameter part and the large-diameter part. The insertion hole is provided with a small-diameter hole part and an inner step part provided in front of the small-diameter hole part. The small-diameter part is inserted or loosely inserted into the small-diameter hole part. The first outer step part contacts the inner step part. The small-diameter hole part is provided with a barb part protruding from an inner surface of the small-diameter hole part. The barb part is deformable when contacting the small-diameter part during insertion of the second component.

IPC Classes  ?

• B43K 8/00 - Pens with writing-points other than nibs or balls
• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Abstract

A friction body unit 3 comprises a friction body 5 and a holding unit 4. The friction body 5 is configured so as to be able to generate frictional heat for thermally discoloring the writing made with thermochromic ink. The holding unit 4 holds the friction body 5 and is configured to be able to be attached to and detached from a shaft tube 2 or a cap of a thermochromic writing utensil. The holding unit 4 has a cylindrical side wall that forms an inner space 41 that at least opens downward. The side wall has formed therein at least one ventilation hole 44 that connects to the inner space 41, allowing for the passage of air between the ventilation hole 44, the inner space 41, and the downward opening.

IPC Classes  ?

• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Abstract

Provided are a reversibly thermochromic aqueous ink composition having excellent writability and few problems such as aggregation of a colorant, an increase in viscosity of the composition, or a decrease in handwriting density, and a refill or an aqueous ballpoint pen using the reversibly thermochromic aqueous ink composition. Provided are a reversibly thermochromic aqueous ink composition having excellent writability and few problems such as aggregation of a colorant, an increase in viscosity of the composition, or a decrease in handwriting density, and a refill or an aqueous ballpoint pen using the reversibly thermochromic aqueous ink composition. A reversibly thermochromic composition is a reversibly thermochromic aqueous ink composition containing a reversibly thermochromic microcapsule pigment encapsulated in a microcapsule formed from an organic resin, an N-vinyl-2-pyrrolidone polymer, glycerin, and water, in which when contents (% by mass) of the reversibly thermochromic microcapsule pigment, the N-vinyl-2-pyrrolidone polymer, and the glycerin with respect to a total mass of the ink composition are PMC, PPVP, and PG, respectively, 0.3≤PMC/(PPVP+PG)≤4, and 0.2≤PPVP/PG≤5, and a refill or an aqueous ballpoint pen incorporating the reversibly thermochromic aqueous ink composition.

IPC Classes  ?

• C09D 11/106 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/18 - Writing inks for use in ball-point writing instruments
• C09D 11/50 - Sympathetic, colour-changing or similar inks
• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds

Goods & Services

Pastes and other adhesives for stationery or household purposes; sealing wax; printing type; inking ribbons; electric staplers for offices; drawing instruments; paper shredders for office use; stencils; decorators' paintbrushes; paperboard boxes; paper bags; bags [pouches] of plastics, for packaging; food wrapping plastic film for household use; garbage bags of paper; garbage bags of plastic; paper patterns; tailors' chalk; flags of paper; hygienic hand towels of paper; towels of paper; table napkins of paper; hand towels of paper; handkerchiefs of paper; shipping tags of paper; printed paper for lot, other than toy; paper and cardboard; stationery; printed matter; paintings; calligraphic works and their reproductions; photographs [printed]; photograph stands; writing instruments; fountain pens; ball point pens; mechanical pencils and leads therefor; marking pens; ink for fountain pens; erasers; correction pens; correction tapes; ink stamps; ink pads; adhesive note pads; paper gift bags or envelopes; drawing templates; stationery templates; pen cases; note books; notepads; paper clips; note cards; stationery folders; document folders.

Goods & Services

Pastes and other adhesives for stationery or household purposes; sealing wax; printer's type; inking ribbons; electric staplers for offices; drawing instruments; paper shredders for office use; stencils; decorators' paintbrushes; containers of paper, for packaging; bags [envelopes, pouches] of plastics for packaging; food wrapping plastic film for household use; garbage bags of paper for household purposes; garbage bags of paper for household purposes; paper patterns; tailors' chalk; paper flags; hygienic hand towels of paper; towels of paper; table napkins of paper; hand towels of paper; handkerchiefs of paper; shipping tags of paper or cardboard; omikuji being sacred lots [printed strips of paper for fortune telling]; paper and cardboard; stationery; writing instruments; printed matter; paintings and calligraphic works; photographs [printed]; photograph stands. Toys; dolls; Go games; Japanese chess [shogi games]; Japanese playing cards [utagaruta]; dice; Japanese dice games [sugoroku]; cups for dice; Chinese checkers [games]; chess games; checkers [checker sets]; conjuring apparatus; dominoes; playing cards; Japanese playing cards [hanafuda]; mah-jong; game machines and apparatus; billiard equipment. Advertisement; provision of information concerning commercial sales; employment agencies; auctioneering; providing commercial information and advice for consumers in the choice of products and services; retail services or wholesale services for bags and pouches; retail services or wholesale services for paper and stationery; retail services or wholesale services for toys, dolls, game machines and apparatus; retail services or wholesale services for semi-wrought precious stones and their imitations. Repair of stationery, mechanical pencils, ball-point pens or fountain pens.

Abstract

Provided is a retractable writing instrument including a pen point, a barrel, and a clip. The pen point is configured to be in a state of projecting from the barrel or a state of being retracted into the barrel by sliding the clip in a longitudinal direction of the barrel. The clip includes a clip body extending in the longitudinal direction of the barrel, a ball portion provided on a front side of the clip body and projecting in a direction of a surface of the barrel, and a clip base provided on a rear side of the clip body and is configured to produce a biasing force in a direction of a surface of the barrel. The surface of the barrel includes a guide groove extending in the longitudinal direction of the barrel and provided with a pair of side surfaces to restrict lateral movement of the ball portion, and the guide groove has a through groove capable of causing the ball portion to be in a noncontact state in a direction of the biasing force at least when the pen point is in the retracted state.

IPC Classes  ?

• B43K 24/04 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by means sliding in longitudinally-slotted casings
• B43K 25/02 - Clips

Abstract

Provided is a retractable writing instrument with which a stable writing feel is obtained by preventing any unwanted movement of the tip while writing, and little risk of unsatisfactory operation is presented.　The present invention comprises: a barrel having an opening at the front end; a tip holder that can move in the axial direction of the barrel; a tip that can retract or extend along with the movement of the tip holder; an annular member that is loosely fitted in the inner periphery of the opening of the barrel and is capable of moving in the axial direction; and an elastic member that can connect the tip holder and the annular member so as to allow relative movement therebetween. A tapered contact surface is formed toward the front end in at least part of the outer periphery of the annular member, and a notch is formed in the part of the annular member, the inner diameter of the annular member decreasing when the contact surface is subjected to a load. A tapered guide surface is formed toward the front end in a part of the inner surface of the barrel, the contact surface being subjected to the load from the guide surface along with movement toward the front-end side of the tip holder.

IPC Classes  ?

• B43K 7/12 - Ball-point pens with retractable ball points
• B43K 8/00 - Pens with writing-points other than nibs or balls
• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• B43K 24/02 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions

Abstract

Provided is a writing implement in which the pen tip is supported in a tiltable manner so that the entire pen tip makes contact with a paper surface, and which makes it possible to relatively easily draw a straight line as intended.　The front portion of the pen tip extends in a linear direction that is tilted at an acute angle with respect to the axis direction in a side view, and the cross section of the front portion of the pen tip with respect to the extending direction has a substantially rectangular shape. A holding member has a holding portion that surrounds at least a part of the front portion of the pen tip. The holding portion has openings that are provided on both longer dimension sides of the substantially rectangular cross section of the front portion of the pen tip. The vertex portion of the pen tip is formed to be substantially straight in a side view, and is substantially perpendicular to the extending direction of the front portion of the pen tip. The back end edge of each of the openings is formed to be substantially straight in a side view, and is substantially parallel to the vertex portion of the pen tip. The holding portion has an extending piece that extends in a direction substantially parallel to the extending direction of the front portion of the pen tip and that is provided on a shorter dimension side of the substantially rectangular cross section of the front portion of the pen tip, said shorter dimension side being on the inner side in a side view.

IPC Classes  ?

• B43K 1/12 - Writing-points comprising fibres; Felt pads
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material

Abstract

[Problems] Provided are a highly marketable reversibly thermochromic composition that provides a black color during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in contrast between a colored state and a decolored state and a microcapsule pigment encapsulating the same. [Problems] Provided are a highly marketable reversibly thermochromic composition that provides a black color during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in contrast between a colored state and a decolored state and a microcapsule pigment encapsulating the same. [Solution] Disclosed are a reversibly thermochromic composition including: (a) a fluoran derivative having a specific structure as an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the same.

IPC Classes  ?

• C09K 9/02 - Organic tenebrescent materials
• C09B 11/24 - Phthaleins containing amino groups
• C09B 67/02 - Dyestuff preparations characterised by special physical forms, e.g. tablets, films
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/18 - Writing inks for use in ball-point writing instruments
• C09D 11/50 - Sympathetic, colour-changing or similar inks
• C08K 9/10 - Encapsulated ingredients

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; stationery.

Abstract

This ballpoint pen tip (40) comprises a ball (42) having a diameter of 0.5 mm or less and a tip body (50) that holds the ball, wherein: the tip body has a ball holding chamber (52) that holds the ball, a rear hole (57) located behind the ball holding chamber, an ink flow hole (62) that allows the ball holding chamber and the rear hole to communicate with each other, and an ink flow groove (64) that extends in a radial direction (dr) from the ink flow hole, is open to the ball holding chamber, and does not reach the rear hole; a ratio (A/B) of an ink consumption A to a diameter B of the ball per 100 m of handwriting is 200 mg/mm or more and 800 mg/mm or less; and when a front end (64a) of the ink flow groove is set as a start point S1, when a location of the ink flow hole extending rearward from a front end (62) by 0.3 mm is set as an end point S2, the volume of a first space part (SA) in the ink flow hole and the ink flow groove from the start point to the end point is 0.02 mm3 or more.

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds

Goods & Services

Pastes and other adhesives for stationery or household purposes; sealing wax; printing type; inking ribbons; electric staplers for offices; drawing instruments; paper shredders for office use; stencils; decorators' paintbrushes; paperboard boxes; paper bags; bags in the nature of pouches of plastics, for packaging; food wrapping plastic film for household use; garbage bags of paper; garbage bags of plastic; printed paper sewing patterns; tailors' chalk; flags of paper; hygienic hand towels of paper; towels of paper; table napkins of paper; hand towels of paper; handkerchiefs of paper; shipping tags of paper; omikuji being sacred lots, namely, printed strips of paper featuring fortunes for fortune telling; paper and cardboard; stationery; printed matter, namely, calendars; paintings; calligraphic works and their reproductions; printed photographs; photograph stands; writing instruments; fountain pens; ball point pens; mechanical pencils and leads therefor; marking pens; ink for fountain pens; erasers; correction pens; correction tapes being office requisites; ink stamps; ink pads; adhesive note pads; paper gift bags and envelopes; drawing templates; stationery templates; pen cases; printed note books; printed notepads; paper clips; printed note cards; stationery folders; document folders in the nature of file folders

Abstract

[Problem] To provide: a reversible thermochromic composition, in which a fluoran derivative with a specific structure is used as an electron-donating and coloring organic compound and, therefore, which exhibits a black color upon color development and changes to colorless upon decoloration and which has excellent light resistance; and a microcapsule pigment encapsulating the reversible thermochromic composition. [Solution] A reversible thermochromic composition that comprises: (a) a fluoran derivative with a specific structure as an electron-donating and coloring organic compound; (b) a compound with a specific structure as an electron accepting compound; and (c) a reaction medium that reversibly causes an electron transfer reaction between the component (a) and component (b) in a specific temperature range. A reversible thermochromic microcapsule pigment that encapsulates the reversible thermochromic composition.

IPC Classes  ?

• B43K 19/02 - Pencils with graphite; Coloured pencils
• C09K 9/02 - Organic tenebrescent materials
• C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/322 - Pigment inks
• B43K 5/00 - Pens with ink reservoirs in holders, e.g. fountain-pens
• B43K 7/00 - Ball-point pens
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• C09D 7/41 - Organic pigments; Organic dyes
• C09D 7/63 - Additives non-macromolecular organic

Abstract

[Problem] To provide: a reversible thermochromic composition that has excellent contrast between a colored state and a colorless state and also has excellent lightfastness; and a reversible thermochromic microcapsule pigment that encapsulates the reversible thermochromic composition. [Solution] A reversible thermochromic composition that includes (a) an organic electron-donating coloring compound, (b) a combination of compounds that have a specific structure and serve as electron-accepting compounds, and (c) a reaction medium that reversibly allows an electron transfer reaction to occur between component (a) and component (b) in a specific temperature range; and a reversible thermochromic microcapsule pigment that encapsulates the reversible thermochromic composition.

IPC Classes  ?

• C09K 9/02 - Organic tenebrescent materials
• C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/326 - Pigment inks characterised by the pigment dispersant
• B43K 5/00 - Pens with ink reservoirs in holders, e.g. fountain-pens
• B43K 7/00 - Ball-point pens
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• C09D 7/41 - Organic pigments; Organic dyes
• C09B 11/28 - Pyronines
• C09B 67/08 - Coated particulate pigments or dyes
• C09B 67/20 - Preparations of organic pigments

Abstract

[Problem] To provide: a reversible thermochromic composition that has excellent contrast between a colored state and a colorless state and also has excellent lightfastness when in the colored state; and a reversible thermochromic microcapsule pigment that encapsulates the reversible thermochromic composition. [Solution] A reversible thermochromic composition that includes (a) an organic electron-donating coloring compound, (b) a combination of compounds that have a specific structure and serve as electron-accepting compounds, and (c) a reaction medium that reversibly causes an electron transfer reaction to occur between component (a) and component (b) in a specific temperature range; and a reversible thermochromic microcapsule pigment that encapsulates the reversible thermochromic composition.

IPC Classes  ?

• C09K 9/02 - Organic tenebrescent materials
• C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/322 - Pigment inks
• B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
• B41M 5/28 - Thermography using thermo-chromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat decomposable compounds, e.g. gas liberating
• B43K 29/02 - Combinations of writing implements with other articles with rubbers
• C09B 67/08 - Coated particulate pigments or dyes

Goods & Services

Fountain pens; ball point pens; mechanical pencils; marking pens and other writing instruments; stationery

Abstract

A clip body includes one upper wall extending in a longitudinal direction of a barrel and a pair of side walls formed at least on a front side of the upper wall, projecting from both side portions of the upper wall in a direction of a surface of the barrel, and having inner surfaces facing each other, a holding portion is provided on a back side of the clip body and between the pair of side walls, has a shape capable of producing an elastic force by deformation, and projects more in the direction of the surface of the barrel than the pair of side walls, the surface of the barrel includes a guide groove extending in the longitudinal direction of the barrel and provided with a bottom surface contacting the holding portion and a pair of side surfaces to restrict lateral movement of the holding portion, and a clip base is connected to a rear side of the clip body and supports the clip body at a height not to cause the pair of side walls to contact the surface of the barrel and the holding portion to contact the bottom surface of the guide groove.

IPC Classes  ?

• B43K 24/04 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by means sliding in longitudinally-slotted casings
• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
• B43K 25/02 - Clips

Goods & Services

Games and playthings; gymnastic and sporting articles not included in other classes; decorations for Christmas trees; toys for pets; imitation bones being playthings for dogs; model animals being toys; model animals being playthings; toy animals; toys for animals; games for animals; imitation bones being toys for dogs; toy dogs; toys for dogs; toys for cats; toys and playthings for animals; toys and playthings for birds; toys and playthings for fish; toys and playthings for reptiles; Christmas decorations; artificial Christmas trees; bells for Christmas trees; Christmas crackers; candle holders for Christmas trees; Christmas novelties; Christmas stockings; Christmas synthetic trees; Christmas tree decorations other than edible or for illumination; Christmas tree stands; ornaments for Christmas trees except illumination articles and confectionery; Christmas trees of synthetic materials; decorations being baubles (not edible) for Christmas trees; tinsel; non-edible Christmas tree ornaments; puppets for Christmas trees; artificial snow for Christmas trees; angels being Christmas tree ornaments; stars being Christmas tree ornaments; balls for games; bats for games; board games; building blocks being toys; dolls; dolls' clothes; apparatus for electronic games other than those adapted for use with television receivers only; mobiles being toys; parlour games; play balloons; puppets; skateboards; toy masks; puzzles and jigsaw puzzles; toy balloons; automatic slot machines; toy sporting equipment; video game machines incorporating a means of display and not adapted for use with television receivers; toy figures; toy military figures; cuddly toys, teddy bears, being toys; playing cards; parts and fittings for all the aforesaid goods. Retail and wholesale services connected with the sale of adhesives for stationery or household purposes, artists' materials, paint brushes, office requisites (except furniture), instructional and teaching material (except apparatus), stationery, instructional and teaching materials, office requisites (other than furniture), stickers, car stickers, ring binders, notebooks, folders, adhesive labels, racks and utensil racks; retail and wholesale services services connected with the sale of games and playthings, gymnastic and sporting articles, decorations for Christmas trees, toys for pets, imitation bones being playthings for dogs, model animals being toys, model animals being playthings, toy animals, toys for animals, games for animals, imitation bones being toys for dogs, toy dogs, toys for dogs, toys for cats, toys and playthings for animals, toys and playthings for birds and toys and playthings for fish; retail and wholesale services connected with the sale of toys and playthings for reptiles, Christmas decorations, bells for Christmas trees, Christmas crackers, candle holders for Christmas trees, Christmas novelties, Christmas stockings, Christmas synthetic trees, Christmas tree decorations other than edible or for illumination, Christmas tree stands, artificial Christmas trees, ornaments for Christmas trees except illumination articles and confectionery and Christmas trees of synthetic material; retail and wholesale services connected with the sale of decorations being baubles (not edible) for Christmas trees, tinsel, non-edible Christmas tree ornaments, puppets for Christmas trees, artificial snow for Christmas trees, angels being Christmas tree ornaments, stars being Christmas tree ornaments, balls for games, bats for games, board games, building blocks being toys, dolls, dolls' clothes and apparatus for electronic games other than those adapted for use with television receivers only; retail and wholesale services connected with the sale of mobiles being toys, parlor games, playing cards, play balloons, puppets, skateboards, toy masks, puzzles and jigsaw puzzles, toy balloons, automatic slot machines, toy sporting equipment, video game machines incorporating a means of display and not adapted for use with television receivers, toy figures, toy military figures, cuddly toys and teddy bears, being toys; the bringing together, for the benefit of others, of a variety of adhesives for stationery or household purposes, artists' materials, paint brushes, office requisites (except furniture), instructional and teaching material (except apparatus), stationery, instructional and teaching materials, office requisites (other than furniture), stickers, car stickers, ring binders, notebooks, folders, adhesive labels, racks and utensil racks, to allow consumers to conveniently view and purchase such goods; the bringing together, for the benefit of others, of a variety of games and playthings, gymnastic and sporting articles, decorations for Christmas trees, toys for pets, imitation bones being playthings for dogs, model animals being toys, model animals being playthings, toy animals, toys for animals, games for animals, imitation bones being toys for dogs, toy dogs, toys for dogs, toys for cats and toys and playthings for animals, to allow consumers to conveniently view and purchase such goods; the bringing together, for the benefit of others, of a variety of toys and playthings for birds, toys and playthings for fish, toys and playthings for reptiles, Christmas decorations, bells for Christmas trees, Christmas crackers, candle holders for Christmas trees, Christmas novelties, Christmas stockings, Christmas synthetic trees and Christmas tree decorations other than edible or for illumination and Christmas tree stands, to allow consumers to conveniently view and purchase such goods; the bringing together, for the benefit of others, of a variety of artificial Christmas trees, ornaments for Christmas trees except illumination articles and confectionery, Christmas trees of synthetic material, decorations being baubles (not edible) for Christmas trees, tinsel, non-edible Christmas tree ornaments, puppets for Christmas trees, artificial snow for Christmas trees and angels being Christmas tree ornaments, to allow consumers to conveniently view and purchase such goods; the bringing together, for the benefit of others, of a variety of stars being Christmas tree ornaments, balls for games, bats for games, board games, building blocks being toys, dolls, dolls' clothes, apparatus for electronic games other than those adapted for use with television receivers only and mobiles being toys, parlor games, playing cards, play balloons, puppets, skateboards, toy masks and puzzles and jigsaw puzzles, to allow consumers to conveniently view and purchase such goods; the bringing together, for the benefit of others, of a variety of toy balloons, automatic slot machines, toy sporting equipment, video game machines incorporating a means of display and not adapted for use with television receivers, toy figures, toy military figures, cuddly toys and teddy bears being toys, to allow consumers to conveniently view and purchase such goods; electronic shopping retail services, including such services provided from an internet website, connected with the sale of adhesives for stationery or household purposes, artists' materials, paint brushes, office requisites (except furniture), instructional and teaching material (except apparatus), stationery, instructional and teaching materials, office requisites (other than furniture), stickers, car stickers, ring binders, notebooks, folders, adhesive labels, racks and utensil racks; electronic shopping retail services, including such services provided from an internet website, connected with the sale of games and playthings, gymnastic and sporting articles, decorations for Christmas trees, toys for pets, imitation bones being playthings for dogs, model animals being toys, model animals being playthings, toy animals, toys for animals, games for animals, imitation bones being toys for dogs, toy dogs, toys for dogs, toys for cats and toys and playthings for animals; electronic shopping retail services, including such services provided from an internet website, connected with the sale of toys and playthings for birds, toys and playthings for fish, toys and playthings for reptiles, Christmas decorations, bells for Christmas trees, Christmas crackers, candle holders for Christmas trees, Christmas novelties, Christmas stockings, Christmas synthetic trees, Christmas tree decorations other than edible or for illumination and Christmas tree stands; electronic shopping retail services, including such services provided from an internet website, connected with the sale of artificial Christmas trees, ornaments for Christmas trees except illumination articles and confectionery, Christmas trees of synthetic material, decorations being baubles (not edible) for Christmas trees, tinsel, non-edible Christmas tree ornaments, puppets for Christmas trees, artificial snow for Christmas trees and angels being Christmas tree ornaments; electronic shopping retail services, including such services provided from an internet website, connected with the sale of stars being Christmas tree ornaments, balls for games, bats for games, board games, building blocks being toys, dolls, dolls' clothes, apparatus for electronic games other than those adapted for use with television receivers only, mobiles being toys, parlor games, playing cards, play balloons, puppets, skateboards, toy masks, puzzles and jigsaw puzzles and toy balloons; electronic shopping retail services, including such services provided from an internet website, connected with the sale of automatic slot machines, toy sporting equipment, video game machines incorporating a means of display and not adapted for use with television receivers, toy figures, toy military figures, cuddly toys and teddy bears, being toys; mail order retail services connected with the sale of stationery or household purposes, artists' materials, paint brushes, office requisites (except furniture), instructional and teaching material (except apparatus), stationery, instructional and teaching materials, office requisites (other than furniture), stickers, car stickers, ring binders, notebooks, folders, adhesive labels, racks and utensil racks; mail order retail services connected with the sale of games and playthings, gymnastic and sporting articles, decorations for Christmas trees, toys for pets, imitation bones being playthings for dogs, model animals being toys, model animals being playthings, toy animals, toys for animals, games for animals, imitation bones being toys for dogs, toy dogs, toys for dogs, toys for cats, toys and playthings for animals, toys and playthings for birds and toys and playthings for fish; mail order retail services connected with the sale of toys and playthings for reptiles, Christmas decorations artificial Christmas trees, bells for Christmas trees, Christmas crackers, candle holders for Christmas trees, Christmas novelties, Christmas stockings, Christmas synthetic trees, Christmas tree decorations other than edible or for illumination, Christmas tree stands, artificial Christmas trees and ornaments for Christmas trees except illumination articles and confectionery; mail order retail services connected with the sale of Christmas trees of synthetic material, decorations being baubles (not edible) for Christmas trees, tinsel, non-edible Christmas tree ornaments, puppets for Christmas trees, artificial snow for Christmas trees, angels being Christmas tree ornaments, stars being Christmas tree ornaments, balls for games, bats for games, board games, building blocks being toys, dolls and dolls' clothes; mail order retail services connected with the sale of apparatus for electronic games other than those adapted for use with television receivers only and mobiles being toys parlor games, playing cards, play balloons, puppets, skateboards, toy masks, puzzles and jigsaw puzzles, toy balloons, automatic slot machines, toy sporting equipment, video game machines incorporating a means of display and not adapted for use with television receivers, toy figures, toy military figures and cuddly toys; mail order retail services connected with the sale of teddy bears, being toys.

Abstract

[Problem] The present invention addresses the problem of providing an ink composition for a writing implement having various characteristics such as dry-up resistance and writing density in addition to dispersion stability and writing fastness such as writing water resistance, and a writing implement that uses the same. [Solution] The ink composition for a writing implement according to the present invention includes a self-dispersing pigment, an α-glucan or an α-glucan derivative, and water. The present invention relates to the ink composition for a writing implement and to a writing implement and a cartridge for a writing implement that house the same.

IPC Classes  ?

• C09D 11/16 - Writing inks

Abstract

Provided is a ballpoint pen (1) including: a first caulking part (14a) in which the ink viscosity of an ink composition for an oil-based ballpoint pen is in a range of 500 mPa·s to 15,000 mPa·s at 20 °C and at a shear rate of 500 sec-1, the ball diameter of a ball (20) is 0.5 mm or less, and a chip tip part (13) has an inclination (α) of 90 degrees to 100 degrees; and a second caulking part (14b) that is provided closer to a tip side of a ballpoint pen chip (11) than the first caulking part (14a) and has an inclination angle of 110 degrees to 130 degrees, wherein an angle (γ) of a bottom wall (19) of a ball holding chamber (15) is the same as the inclination angle of the second caulking part (14b).

IPC Classes  ?

• B43K 1/08 - Nibs; Writing- points with ball points; Balls or ball beds
• B43K 7/00 - Ball-point pens
• C09D 11/18 - Writing inks for use in ball-point writing instruments

Goods & Services

Pastes and other adhesives for stationery or household purposes; sealing wax; printer's type; inking ribbons; electric staplers for offices; drawing instruments; paper shredders for office use; stencils; decorators' paintbrushes; containers of paper, for packaging; bags in the nature of envelopes and pouches of plastics for packaging; food wrapping plastic film for household use; garbage bags of paper for household purposes; tailors' chalk; paper flags; hygienic hand towels of paper; towels of paper; table napkins of paper; hand towels of paper; handkerchiefs of paper; shipping tags of paper or cardboard; omikuji being sacred lots, namely, printed strips of paper featuring fortunes for fortune telling; paper and cardboard; stationery; writing instruments; printed matter, namely, note books, note pads; paintings and calligraphic works; printed photographs; photograph stands Toys, namely, infant toys, drawing toys, educational toys for teaching and testing knowledge relating to cooking, colors, numbers and words, doll houses, doll furniture, doll clothing, doll costumes, dressers for dolls, toy dressers, toy cars for dolls, bath toys, bath toys for infants and children, toys that change colors with the application of hot or cold water for infants and children, toys for making stickers; dolls; Go games; Japanese chess (shogi games); Japanese playing cards (utagaruta); dice; Japanese dice games (sugoroku); cups for dice; Chinese checkers as games; chess games; checkers, namely, checker sets; conjuring apparatus, namely, magic tricks; dominoes; playing cards; Japanese playing cards (hanafuda); mah-jong; billiard equipment Advertisement services; provision of information concerning commercial sales; employment agencies; auctioneering; providing commercial information and advice for consumers in the choice of products and services; retail store services, online retail store services and wholesale store services featuring bags and pouches; retail store services, online retail store services and wholesale store services featuring paper and stationery; retail store services, online retail store services and wholesale store services featuring toys, dolls, game machines and apparatus Repair of stationery, mechanical pencils, ball-point pens and fountain pens

Abstract

Disclosed is a photochromic composition comprising a naphthopyran-based photochromic compound having a specific structure and an oligomer.

IPC Classes  ?

• C09B 67/20 - Preparations of organic pigments
• C08L 23/06 - Polyethene
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C09B 67/02 - Dyestuff preparations characterised by special physical forms, e.g. tablets, films
• C09B 67/46 - Dispersions
• C09D 5/29 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09D 11/106 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/18 - Writing inks for use in ball-point writing instruments
• C09D 11/322 - Pigment inks
• C09D 11/50 - Sympathetic, colour-changing or similar inks
• C09D 125/08 - Copolymers of styrene
• C09D 125/16 - Homopolymers or copolymers of alkyl- substituted styrenes
• C09D 133/04 - Homopolymers or copolymers of esters
• C09K 9/02 - Organic tenebrescent materials

Abstract

The present invention comprises: an ink-holding tube (2) that holds an ink composition for an oil-based ballpoint pen (10), the ink composition containing a coloring agent, an alkylene glycol alkyl ether, and a polyacrylic acid resin; and a ballpoint pen tip (4) rotatably holding a ball (3) at one end of the extending direction (X) of the ink-holding tube (2). The ratio of the amount of ink consumed (mg) per 100 m of writing distance to the diameter (mm) of the ball (3) is 30 or more.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments
• B43K 7/00 - Ball-point pens

Abstract

A writing implement includes: a barrel; a writing body supported by the barrel so as to be relatively movable with respect to the barrel in an axial direction thereof, whereby the writing body is projected from and retracted into a front end of the barrel; a rotation member disposed in the barrel so as to be relatively rotatable with respect to the barrel about an axis thereof, the rotation member being provided with a groove or a slit that helically extends about the axis; and a pressing unit having a moving unit that moves in the groove or the slit, the pressing unit being relatively movable with respect to the barrel in the axial direction, while its relative rotation about the axis being restricted; wherein the pressing unit can be pressed forward with respect to the barrel.

IPC Classes  ?

• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
• B43K 5/00 - Pens with ink reservoirs in holders, e.g. fountain-pens
• B43K 5/16 - Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs
• B43K 24/06 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means

Abstract

To provide a reversibly thermochromic composite fiber having a reversible color change due to a temperature change, having such excellent flame retardancy that flame is hard to spread even if ignition occurs once, and having high safety. [Solution] Disclosed is a sheath-core type reversibly thermochromic composite fiber including a core comprising a resin, a reversibly thermochromic pigment, and a flame retardant, and a sheath comprising a resin and a flame retardant.

IPC Classes  ?

• D01F 1/04 - Pigments
• A41G 3/00 - Wigs
• A63H 9/00 - Special methods or compositions for the manufacture of dolls, toy animals, toy figures, or parts thereof
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
• C09K 9/02 - Organic tenebrescent materials
• C09K 21/04 - Inorganic materials containing phosphorus
• D01F 1/07 - Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
• A63H 3/02 - Dolls made of fabrics or stuffed
• A63H 3/44 - Dolls' hair or wigs; Eyelashes; Eyebrows

Abstract

The present invention is a thermochromic writing implement comprising thermochromic ink and a frictional element for thermally altering, via frictional heat, the color of writing made using the thermochromic ink, wherein: a metallic glossy pigment is added to the thermochromic ink; an attachment hole 2 for attaching a frictional element 3 is provided in the thermochromic writing implement; the frictional element 3 comprises an attaching part 5 that is inserted into the attachment hole 2, and a frictional part 32 that projects from the attachment hole 2 and has an convex surface shape; the volume Ve of the frictional part 32 and the volume Vp of the metallic glossy pigment satisfy 5 ≤ Ve/Vp ≤ 35; the maximum outer diameter D of the frictional part 32 and the projecting length L thereof satisfy 0.1 ≤ L/D ≤ 1.5; the value of the Shore A hardness of the material of the frictional element 3 immediately after initiating indenter contact is in a range of 60 to 85, inclusive, as measured according to JIS K 7215 of the Japanese Industrial Standards; and the value (ΔHS) of Shore A hardness, as defined according to the following formula, is at least 0 and less than 5. ΔHS = (Shore A hardness value immediately after initiating indenter contact) – (Shore A hardness value 15 seconds after initiating indenter contact)

IPC Classes  ?

• B43L 19/00 - Erasers, rubbers, or erasing devices; Holders therefor
• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Goods & Services

Amusement machines and apparatus for use in amusement parks; toys for domestic pets; toys; dolls; Go games; Japanese chess [shogi games]; Japanese playing cards [utagaruta]; dice; Japanese dice games [sugoroku]; dice cups; Chinese checkers [games]; chess games; checkers [checker sets]; conjuring apparatus; dominoes; playing cards; Japanese playing cards [hanafuda]; mah-jong; board games; game machines and apparatus; billiard equipment; fishing tackle; butterfly nets.

Abstract

4 each represent a C6-18 alkyl group or a C2-18 and O2-10 alkoxypolyglycol group.)

IPC Classes  ?

• C09D 11/16 - Writing inks
• B43K 8/02 - Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 5/00 - Use of organic ingredients
• C08K 5/05 - Alcohols; Metal alcoholates
• C08K 5/12 - Esters; Ether-esters of cyclic polycarboxylic acids
• C08L 29/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols

Abstract

In a writing tool 1, a front shaft 5 is detachably provided on a rear shaft 6 containing an ink absorbent body 7. A filling part 51 is provided on an outside surface of a rear part of the front shaft 5. The filling part 51 detachably fits to a fitted part 61 formed on an inside surface of an opening part of the rear shaft 6. The filling part 51 has an outward-facing pressure contact part 53 and a radially penetrating slit 54. The fitted part 61 has an inward-facing pressure contact part 63. The front shaft 5 and the rear shaft 6 are brought into a pressure contact with each other when the front shaft 5 and the rear shaft 6 are fitted to each other.

IPC Classes  ?

• B43K 8/12 - Arrangements for feeding ink to writing-points writing-points or writing-point units being separable from reservoir
• B43K 8/00 - Pens with writing-points other than nibs or balls
• B43K 23/12 - Protecting means, e.g. caps for pens

Goods & Services

(1) Amusement game machines; toys for domestic pets; action toys; baby multiple activity toys; baby toys; bath toys; children's educational toys for developing fine motor, reading, oral language, numbers, counting, colors and alphabet skills; children's multiple activity toys; educational toys; infant development toys; infant toys; inflatable bath toys; multiple activity toys for children; toy cookware; toy cutlery; toy dishware; toy food; toy tea sets; toy tool sets; water toys; dolls; plush toys; plastic toys; rubber toys; dolls; Go games; Japanese chess [shogi games]; Japanese playing cards [utagaruta]; dice; Japanese dice games [sugoroku]; dice cups; Chinese checkers [games]; chess games; checkers [checker sets]; magic sets; dominoes; playing cards; Japanese playing cards [hanafuda]; mah-jong; board games; gaming machines; billiard equipment; fishing tackle; butterfly nets.

Abstract

This soft member attachment structure includes: an attachment hole 2 provided so as to pass along a vertical center axis through the rear end of a shaft tube constituting a thermochromic writing implement, the attachment hole having an inner peripheral surface between two openings positioned at the upper end and the lower end; an attachment part 5 positioned below a large-diameter part 4 of a soft member 3 that is used for heat discoloration, the attachment part 5 having a diameter that is less than that of the large-diameter part 4 and allows insertion into the attachment hole 2; a straight inner hole 31 provided along the vertical center axis of the soft member 3, the inner hole 31 opening at least at the lower end of the soft member 3; and a rod-form core 7 having an outside diameter that enables insertion into the inner hole 31, a length allowing fitting into the inner hole 31, and an outer peripheral surface that comes into contact with the inner peripheral surface of the inner hole 31. The attachment part 5 is inserted into the attachment hole 2 and the core 7 is inserted into the inner hole 31, whereby the soft member 3 is attached within the attachment hole 2.

IPC Classes  ?

• B43L 19/00 - Erasers, rubbers, or erasing devices; Holders therefor
• B43K 3/00 - Nib holders
• B43K 7/00 - Ball-point pens
• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Abstract

[Problem] The objective of the invention is to provide a water-soluble sheet-like coloring material capable of demonstrating effects by which sheets thereof are not susceptible to adhere to each other, have an appropriate degree of self-support and flexibility, and can quickly arrive at a homogenous state when dissolved in water. [Solution] The water-soluble sheet-like coloring material comprises a coat film-forming water-soluble polymer, a dissolution-promoting agent, a coloring agent, and a moisture-holding agent.

IPC Classes  ?

• C09D 5/06 - Artists' paints
• C09D 101/00 - Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
• C09D 103/00 - Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
• C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
• C09D 7/65 - Additives macromolecular

Abstract

[Problems] Provided is a discoloring body which is discolored by application of water and has high glossiness and is excellent in applicability to various fields such as a toy field, a decoration field, and a design field. [Solution] A discoloring body including a supporting body, a porous layer in which a low refractive index pigment is fixed in a dispersed state by way of a binder resin, and a glossy resin layer, in which an occupancy area ratio of the glossy resin layer is 1% to 95% with respect to a 1 cm square at any position in the porous layer.

IPC Classes  ?

• B32B 7/023 - Optical properties
• A63H 33/22 - Optical, colour, or shadow toys
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B44F 1/02 - Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces
• C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
• C08J 5/18 - Manufacture of films or sheets

Abstract

A friction body is configured to discolor handwriting written with a thermochromic ink with frictional heat. The friction body includes a viscoelastic body, and has a Shore A hardness (based on JIS K 7215) immediately after start of contact of an indenter point of from 55 to 95.

IPC Classes  ?

• B43K 24/08 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
• B43K 23/12 - Protecting means, e.g. caps for pens
• C09D 11/17 - Writing inks characterised by colouring agents
• C09D 11/50 - Sympathetic, colour-changing or similar inks
• B43K 29/02 - Combinations of writing implements with other articles with rubbers

Abstract

[Problem] The present invention addresses the problem of providing: an ink composition for an oil-based ballpoint pen, said ink composition improving writability and suppression of wear of a ball seat under a high writing pressure (writing load of 300-500 gf) and having good writing performance, temporal stability, and ink followability; and an oil-based ballpoint pen using said ink composition. [Solution] This ink composition for an oil-based ballpoint pen is characterized by containing a colorant, an organic solvent, and polyoxyalkylene glyceryl ether.

IPC Classes  ?

• C09D 11/18 - Writing inks for use in ball-point writing instruments
• B43K 7/10 - Arrangements for feeding the ink to the ball points

Abstract

[Problem] To provide a color pencil lead which exhibits excellent physical strength, while having excellent writing erasability and smooth feel of writing. [Solution] A color pencil lead according to the present invention comprises: a porous lead body that contains an extender, an inorganic binder and a solid-state coloring agent; and a slightly volatile liquid that is filled in the pores of the porous lead body.

IPC Classes  ?

• B43K 19/02 - Pencils with graphite; Coloured pencils
• B43K 19/18 - Making pencil writing-cores
• C09D 13/00 - Pencil-leads; Crayon compositions; Chalk compositions

Abstract

A retractable writing implement configured so that by sliding a clip 4 along the longitudinal direction of a barrel, a pen tip protrudes from or is retracted inside the barrel, wherein: the clip 4 includes a clip body 41 that extends in the longitudinal direction of the barrel, a ball part 42 that is provided at the front end of the clip body 41 and that protrudes toward the surface of the barrel, and a clip base 43 that is provided at the back end of the clip body 41, and the clip 4 is configured such that a biasing force toward the surface of the barrel can be created; the surface of the barrel is provided with a guide groove 23f, which is a groove extending in the longitudinal direction of the barrel and has a pair of sides 234 that limit the lateral movement of the ball part 42; and the guide groove 23f has a through groove 235 that can, at least when the pen tip is in the retracted position, render the ball part 42 out of contact with the guide groove 23f in the direction of the biasing force.

IPC Classes  ?

• B43K 25/02 - Clips
• B43K 24/04 - Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by means sliding in longitudinally-slotted casings