Sports equipment; golf equipment; golf clubs; golf club
heads; stands specially adapted for holding golf clubs; golf
club grips; golf club shafts; head covers for golf clubs.
Sports equipment; golf equipment; golf clubs; golf club
heads; stands specially adapted for holding golf clubs; golf
club grips; golf club shafts; head covers for golf clubs.
A tire includes a tread portion having a first land region provided with first axial grooves and a second land region provided with second axial grooves. The first axial grooves are arranged at intervals in a first arrangement over the entire tire circumference. In the first arrangement, in a pair of adjacent first axial grooves, a first end of one first axial groove is located at the same position in the tire circumferential direction as the second end of the other first axial groove. The second axial grooves are arranged at intervals in a second arrangement. The number of types of a second pitch of the second axial grooves in the second arrangement is greater than the number of types of a first pitch of the first axial grooves in the first arrangement.
A pneumatic tire of the present invention includes a tire inner cavity 1B and a porous sound damper 10. The sound damper 10 is an annular body extending in a tire circumferential direction and is not adhered to a surface of the tire inner cavity 1B. An average thickness T (mm) of the sound damper 10 and an inner cavity surface radius R (mm) satisfy the following formula (1). An average circumferential length L (mm) in a circumferential direction of the sound damper 10 in a state where the sound damper 10 is removed from the pneumatic tire, and an inner cavity surface circumferential length C (mm), satisfy the following formulas (2) and (3).
A pneumatic tire of the present invention includes a tire inner cavity 1B and a porous sound damper 10. The sound damper 10 is an annular body extending in a tire circumferential direction and is not adhered to a surface of the tire inner cavity 1B. An average thickness T (mm) of the sound damper 10 and an inner cavity surface radius R (mm) satisfy the following formula (1). An average circumferential length L (mm) in a circumferential direction of the sound damper 10 in a state where the sound damper 10 is removed from the pneumatic tire, and an inner cavity surface circumferential length C (mm), satisfy the following formulas (2) and (3).
0.04
≤
T
/
R
≤
0
.18
(
1
)
1.02
-
1.1
×
T
/
R
≤
L
/
C
≤
0
.
9
5
+
1.4
×
T
/
R
(
2
)
L
/
C
≤
1
.
1
(
3
)
A pneumatic tire can include a carcass, a belt layer, and reinforcing rubber layers. Turned-up portions of a carcass ply each include a first portion located between a body portion and the belt layer, a second portion adjacent to each reinforcing rubber layer in a tire axial direction, on an outer side in a tire radial direction with respect to a rim flange of a standardized rim, and a third portion located between the first portion and the second portion. A length of the third portion is 0.8 to 1.4 times a sum (La+Lb) of a length La of the first portion and a length Lb of the second portion.
A pointing device operating sleeve includes a palm cover, an arm cover, and a band. The palm cover covers a heel of a palm of a player. The arm cover is continuous with the palm cover. The arm cover covers a forearm of the player. A band is sewed on the palm cover. The band suppresses displacement of the palm cover from the palm.
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
G06F 1/16 - Constructional details or arrangements
A correlated set of golf club heads comprises a first and second golf club head. Each club head has a striking face, a rear surface, a top portion, a sole portion, a toe portion, a heel portion, and a loft. The striking face has a first plurality of scorelines defining a scoreline heel-ward extent and a scoreline toe-ward extent. The plurality of scorelines comprises a scoreline length LS1 being the lateral distance between the heel-ward extent and the toe-ward extent. The loft of the second golf club head is greater than that of the first golf club head. The scoreline length LS2 of the second golf club head differs from that of the first scoreline length LS1.
A golf club head with a hollow therein includes a face portion and a main body portion including a crown portion and a sole portion extending rearward from the face portion. The main body portion is provided with a slit penetrating the main body portion to the hollow, and a surrounding area of the slit is at least partially provided with a thick portion. The slit is arranged so that at least part of the slit is visible in a front view of the golf club head under its reference state, where the reference state is such that the head is placed on a horizontal plane at a lie angle and a loft angle specified for the head, while keeping a shaft axis center line of the head on a reference vertical plane.
A tire has a sidewall portion provided with a protrusion which includes a radially outer design portion, a mark portion and a radially inner design portion. The radially outer design portion has a radially inward contour portion comprising radially inward peak points protruding radially inward. The radially inner design portion is spaced apart from the mark portion in the tire circumferential direction. The radially inner design portion includes a radially outward contour portion having radially outward peak points protruding outward in the tire radial direction. Each of the radially inward peak points is provided at a different position in the tire radial direction than each of the radially outward peak points.
Provided is a highly accurate method for evaluating the abrasion resistance of rubber compositions. The present disclosure relates to a method for evaluating abrasion resistance of a rubber composition by X-ray scattering measurement or neutron scattering measurement, the method including performing X-ray scattering measurement or neutron scattering measurement in a region q expressed by the following Formula 1 to obtain a scattering intensity curve I(q), fitting the following Formula 2 to the scattering intensity curve I(q) to obtain a mass fractal dimension D, and evaluating the abrasion resistance of the rubber composition based on the mass fractal dimension D,
Provided is a highly accurate method for evaluating the abrasion resistance of rubber compositions. The present disclosure relates to a method for evaluating abrasion resistance of a rubber composition by X-ray scattering measurement or neutron scattering measurement, the method including performing X-ray scattering measurement or neutron scattering measurement in a region q expressed by the following Formula 1 to obtain a scattering intensity curve I(q), fitting the following Formula 2 to the scattering intensity curve I(q) to obtain a mass fractal dimension D, and evaluating the abrasion resistance of the rubber composition based on the mass fractal dimension D,
q
=
4
π
sin
(
θ
/
2
)
λ
(
Formula
1
)
(
e
:
scattering
angle
,
λ
:
wavelength
of
x
-
rays
or
neutrons
)
I
(
q
)
∝
q
-
D
(
Formula
2
)
(
D
:
mass
fractal
dimension
)
.
G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using diffraction of the radiation by the materials, e.g. for investigating crystal structureInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materialsInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials
An object of the present disclosure is to provide a golf ball that shows a low initial velocity on approach shots, has excellent controllability, and has a good shot feeling on approach shots. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer and a cover, wherein the spherical core is formed from a rubber composition containing a rubber component, a co-crosslinking agent, and a crosslinking initiator, the co-crosslinking agent contains methacrylic acid and/or a metal salt thereof, and when a center hardness (Shore C hardness) of the spherical core, a hardness (Shore C hardness) at each point of 2.5 mm, 5 mm, 7.5 mm, 10 mm, 12.5 mm and 15 mm from a center of the spherical core toward a surface of the spherical core, and a surface hardness (Shore C hardness) of the spherical core are represented by H0, H2.5, H5, H7.5, H10, H12.5, H15, HS respectively, the following relationship is satisfied: H0
An object of the present disclosure is to provide a golf ball having improved controllability on iron shots. The present disclosure provides a golf ball 2 comprising a spherical core 4, an intermediate layer 6 and an outermost cover 8, wherein the spherical core 4 is formed from a rubber composition containing a polybutadiene rubber and a butyl rubber in a predetermined amount, a center hardness (H0) of the spherical core 4 and hardnesses (H2.5, H5.0, H7.5, H10, H12.5, H15) at points having a radial distance of 2.5 mm, 5.0 mm, 7.5 mm, 10 mm, 12.5 mm, 15 mm from a center of the spherical core satisfy a relationship of H0
An object of the present disclosure is to provide a golf ball that has a low maximum flying height on driver shots by an average golfer. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer and an outermost cover, wherein the spherical core is formed from a rubber composition containing a rubber component, a co-crosslinking agent, and a crosslinking initiator, the co-crosslinking agent contains methacrylic acid and/or a metal salt thereof, a total lower volume Vi (mm3) of the plurality of dimples is 365 mm3 or more, and an occupation ratio of the dimples is 75% or more.
An object of the present disclosure is to provide a golf ball having improved controllability on iron shots. The present disclosure provides a golf ball 2 comprising a spherical core 4, an intermediate layer 6 and an outermost cover 8 having a plurality of dimples 10 formed thereon, wherein the spherical core 4 is formed from a rubber composition containing a polybutadiene rubber and a butyl rubber in a predetermined amount, a slab hardness of an intermediate layer composition forming the intermediate layer 6 is greater than a slab hardness of a cover composition forming the outermost cover 8, a total lower volume of the plurality of dimples 10 is 365 mm3 or more, and an occupation ratio of a total area of the plurality of dimples 10 in a surface area of a virtual sphere that is assumed to have no dimples on the outermost cover 8 is 75% or more.
This tire assembly comprises: a tire that is to be mounted on a vehicle; a first power generator unit; and a second power generator unit different from the first power generator unit. The first power generator unit has a power generator disposed on the inner surface of the tire, and a pressing member that is fixed on the inner surface of the tire at both sides of the power generator so as to stride over the power generator in the circumferential direction of the tire and that is deformable in response to deformation of the tire. The second power generator unit has a power generator fixed on the inner surface of the tire, and a weight member that overlaps the power generator from a side opposite to the inner surface across the power generator.
It is an object of the present invention to provide a tire that can achieve both wet grip performance during high-speed running and abrasion resistance at a low temperature. Provided is a pneumatic tire comprising a tread part, wherein the tread part is composed of a rubber composition comprising 50 parts by mass or more of silica based on 100 parts by mass of a rubber component, wherein the rubber component comprises greater than 50% by mass of a butadiene rubber, and a styrene-butadiene rubber, wherein a total styrene amount in the rubber component is 25% by mass or less, and wherein, when ABR represents a content, in % by mass, of the butadiene rubber in the rubber component and L represents a land ratio, in %, of a tread surface of the tread part, ABR and L satisfy the following inequality:
It is an object of the present invention to provide a tire that can achieve both wet grip performance during high-speed running and abrasion resistance at a low temperature. Provided is a pneumatic tire comprising a tread part, wherein the tread part is composed of a rubber composition comprising 50 parts by mass or more of silica based on 100 parts by mass of a rubber component, wherein the rubber component comprises greater than 50% by mass of a butadiene rubber, and a styrene-butadiene rubber, wherein a total styrene amount in the rubber component is 25% by mass or less, and wherein, when ABR represents a content, in % by mass, of the butadiene rubber in the rubber component and L represents a land ratio, in %, of a tread surface of the tread part, ABR and L satisfy the following inequality:
A
BR
×
L
>
3000.
(
1
)
A tire has a pair of sidewall portions. At least one of the sidewall portions has a reference surface and a raised portion raised outward in a tire axial direction. The raised portion extends continuously in a tire circumferential direction in an annular shape. The raised portion includes a tire maximum width position. The raised portion is provided with a mark portion including a plurality of characters recessed axially inward.
It is an object of the present invention to provide a tire that can achieve both wet grip performance and abrasion resistance. Provided is a pneumatic tire comprising a tread part, wherein the tread part is composed of a rubber composition comprising 50 parts by mass or more of silica based on 100 parts by mass of a rubber component, wherein the rubber component comprises 80% by mass or more of a butadiene rubber, and wherein, when ABR represents a content, in % by mass, of the butadiene rubber in the rubber component and L represents a land ratio, in %, of a tread surface of the tread part, ABR and L satisfy the following inequality:
It is an object of the present invention to provide a tire that can achieve both wet grip performance and abrasion resistance. Provided is a pneumatic tire comprising a tread part, wherein the tread part is composed of a rubber composition comprising 50 parts by mass or more of silica based on 100 parts by mass of a rubber component, wherein the rubber component comprises 80% by mass or more of a butadiene rubber, and wherein, when ABR represents a content, in % by mass, of the butadiene rubber in the rubber component and L represents a land ratio, in %, of a tread surface of the tread part, ABR and L satisfy the following inequality:
A
BR
×
L
>
4800.
(
1
)
A golf ball can include a core, a mid layer, and a cover. An amount P(Na) of a sodium ion-neutralized ionomer resin in abase resin of the cover can be not greater than 5 parts by mass. The golf ball can satisfy the following mathematical formulas (1) and (2):
A golf ball can include a core, a mid layer, and a cover. An amount P(Na) of a sodium ion-neutralized ionomer resin in abase resin of the cover can be not greater than 5 parts by mass. The golf ball can satisfy the following mathematical formulas (1) and (2):
Fm
/
(
Hm
*
Tm
)
-
Fc
/
(
Hc
*
Tc
)
≥
3.
,
and
(
1
)
Mc
*
Tc
≥
10.
,
(
2
)
A golf ball can include a core, a mid layer, and a cover. An amount P(Na) of a sodium ion-neutralized ionomer resin in abase resin of the cover can be not greater than 5 parts by mass. The golf ball can satisfy the following mathematical formulas (1) and (2):
Fm
/
(
Hm
*
Tm
)
-
Fc
/
(
Hc
*
Tc
)
≥
3.
,
and
(
1
)
Mc
*
Tc
≥
10.
,
(
2
)
where
Hm: hardness (Shore D) of the mid layer,
Tm: thickness (mm) of the mid layer,
Fm: bending stiffness (MPa) of the mid layer,
Tc: thickness (mm) of the cover,
Fc: bending stiffness (MPa) of the cover, and
Mc: melt flow rate (g/10 min) of the cover at a temperature of 190° C. under a load of 2.16 Kg.
A wood-type golf club head includes a depth in a front to rear direction no less than 80 mm, a striking face including a face center located in a virtual vertical center plane aligned with the face center and extending in the front to rear direction, a rear portion opposite the striking face, a heel portion, a toe portion opposite the heel portion, a crown, and a sole opposite the crown. The sole includes a first rail and a second rail projecting from the sole base surface and having a first length and a second length, respectively, in the front to rear direction that are less than 75% of the front to rear depth of the club head and the first rail and the second rail are entirely spaced in a heel to toe direction more than 15 mm from the virtual vertical center plane.
A golf club head includes a loft between 20 degrees and 54 degrees and a main body including a top portion, a sole portion opposite the top portion, a heel portion, a toe portion opposite the heel portion, and a hosel portion extending from the heel portion. The hosel portion includes a hosel bore with an open end for receiving a golf club shaft and an abutment surface configured to support the golf club shaft, and an auxiliary recess extending sole-ward from the abutment surface, the auxiliary recess comprising a volume between 2 cubic centimeters and 3.5 cubic centimeters. The golf club head further includes a striking face defining a virtual face plane and having a face center, a virtual vertical plane perpendicular to the virtual face plane and extending through the face center, and a center of gravity spaced no more than 5 mm from the virtual vertical plane.
B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
A golf club head comprises a sole portion including a sole base surface, a leading edge having a virtual vertical leading edge plane, a trailing edge having a virtual vertical trailing edge plane, and a sole width defined by a distance between the virtual vertical leading edge plane and the virtual vertical trailing edge plane. The sole portion further includes a first sole rail projecting from the sole base surface, the first sole rail having a first length, a second sole rail projecting from the sole base surface and located toe-ward of the first sole rail, the second sole rail having a second length that is less than 60% of the sole width, and a third sole rail projecting from the sole base surface and located heel-ward of the first sole rail, the third sole rail having a third length that is less than 60% of the sole width.
Provided is a tire comprising a tread at least having two layers each comprising a rubber component and a plasticizer, wherein a difference (AE1−AE2) between an acetone extraction amount AE1 of the rubber composition of the first layer and an acetone extraction amount AE2 of the rubber composition of the second layer is greater than 6.0% by mass, and wherein, with the first layer and the second layer being attached together, when they are applied with a dynamic stimulus under a condition of a dynamic stress of 0.45 MPa, a frequency of 50 Hz, and a temperature at 80° C. for 120 hours, a rate of change in acetone extraction amount of the rubber composition of the first layer before and after being applied with the predetermined dynamic stimulus is −10% or more and 10% or less.
A golf club head includes a striking face having a face center and defining a face plane, a virtual vertical center plane perpendicular to the face plane and passing through the face center, a sole portion, a top portion, a heel portion, a toe portion, a hosel configured to receive a shaft, and a loft, L, no less than 39°. A center of gravity is spaced toe-ward from the vertical center plane by a distance, Dt, of greater than 0.0 mm. A moment of inertia, Iyy, measured about an axis extending in a heel to toe direction, parallel with a ground plane, passes through the center of gravity such that Iyy is no less than 1150 g·cm2.
An object of the present invention is to provide a golf ball having high visibility and little uncomfortableness at shot. The present invention provides a golf ball comprising a core and a cover disposed outside of the core, wherein a surface of the golf ball has a first region with a first color and a second region with a second color, the first color has hue H1 represented by H value in HSL color space, the second color has hue H2 represented by H value in HSL color space, and the H1 and the H2 satisfy a specific mathematical formula.
An object of the present invention is to provide a golf ball having high visibility and excellent orientation at shot. The present invention provides a golf ball comprising a core and a cover disposed outside of the core, wherein a surface of the golf ball has a first region with a first color and a second region with a second color, the first color has hue H1 represented by H value in HSL color space, the second color has hue H2 represented by H value in HSL color space, and the H1 and the H2 satisfy the following mathematical formula (1):
An object of the present invention is to provide a golf ball having high visibility and excellent orientation at shot. The present invention provides a golf ball comprising a core and a cover disposed outside of the core, wherein a surface of the golf ball has a first region with a first color and a second region with a second color, the first color has hue H1 represented by H value in HSL color space, the second color has hue H2 represented by H value in HSL color space, and the H1 and the H2 satisfy the following mathematical formula (1):
60<|H1−H2|<300 (1).
An object of the present disclosure is to provide a golf ball having an excellent flight distance and stability on a second or subsequent shot while maintaining or improving a flight distance on a driver shot for a golfer with a slow head speed. The present disclosure provides a golf ball comprising a spherical core, and an outermost cover positioned outside the spherical core and having a plurality of dimples formed thereon, wherein a hardness difference S (=Hs−Ho) between a surface hardness Hs of the spherical core and a center hardness Ho (Shore C hardness) of the spherical core, a material hardness C (Shore D hardness) of the outermost cover, and a total volume V (mm3) of the plurality of dimples below a surface of a phantom sphere satisfy V−S×C≥0.
An object of the present disclosure is to provide a golf ball bending in a great amplitude and rolling a short distance after landing. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer, and an outermost cover having a plurality of dimples formed thereon, wherein when a center hardness (Shore C hardness) of the spherical core is Ho, a surface hardness (Shore C hardness) of the spherical core is Hs, a hardness difference S=Hs−Ho, a material hardness (Shore D hardness) of the intermediate layer is Hm, a thickness of the intermediate layer is Tm (mm), a material hardness (Shore D hardness) of the outermost cover is Hc, a thickness of the outermost cover is Tc (mm), and a total lower volume of the plurality of dimples is Vi (mm3), [S×(Hm×Tm+Hc×Tc)]/(Tm+Tc)×Vi/1000<230 is satisfied.
An object of the present disclosure is to provide a golf ball having excellent stability on an approach shot around the green while maintaining or improving a flight distance on a driver shot for a golfer with a slow head speed. The present disclosure provides a golf ball comprising a spherical core, and an outermost cover positioned outside the spherical core and having a plurality of dimples formed thereon, wherein when a hardness difference S (=Hs−Ho) between a surface hardness Hs of the spherical core and a center hardness Ho (Shore C hardness) of the spherical core, a material hardness C (Shore D hardness) of the outermost cover, and a total volume V (mm3) of the plurality of dimples below a surface of a virtual sphere satisfy V+S×C≤1200.
Provided are a highly accurate method for predicting a physical property of a polymer and a polymer having excellent physical properties such as an ability to selectively capture specific cells and biocompatibility. The method for predicting a physical property of a polymer includes Step 1 of obtaining a structure of a monomer from a structure of a polymer, Step 2 of converting the obtained structure of the monomer or a converted structure of the monomer into a format recognizable by a computer, Step 3 of computing a descriptor from the format recognizable by a computer, Step 4 of obtaining a physical property of the polymer and performing a regression calculation using the physical property of the polymer as an objective variable and the descriptor as an explanatory variable to construct a regression model, Step 5 of computing a format of a new monomer from the format recognizable by a computer, Step 6 of computing a descriptor from the format of the new monomer or a converted format of the new monomer, and Step 7 of applying the descriptor of the new monomer to the regression model to predict a physical property of a polymer produced by polymerizing the new monomer.
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION (Japan)
Inventor
Minagawa, Yasuhisa
Tanaka, Masaru
Anada, Takahisa
Yamamoto, Aki
Shindo, Hironori
Park, Jisu
Ujigawa, Kazuma
Abstract
Provided is a method of producing a polymer-coated substrate for capturing cancer cells in which a polymer layer is stably maintained on the surface of the substrate for a long time even in a liquid environment. The method of producing a polymer-coated substrate for capturing cancer cells includes forming a polymer layer using a hydrophilic polymer represented by the following formula (I) on a surface of a substrate having undergone anti-reflection treatment,
Provided is a method of producing a polymer-coated substrate for capturing cancer cells in which a polymer layer is stably maintained on the surface of the substrate for a long time even in a liquid environment. The method of producing a polymer-coated substrate for capturing cancer cells includes forming a polymer layer using a hydrophilic polymer represented by the following formula (I) on a surface of a substrate having undergone anti-reflection treatment,
Provided is a method of producing a polymer-coated substrate for capturing cancer cells in which a polymer layer is stably maintained on the surface of the substrate for a long time even in a liquid environment. The method of producing a polymer-coated substrate for capturing cancer cells includes forming a polymer layer using a hydrophilic polymer represented by the following formula (I) on a surface of a substrate having undergone anti-reflection treatment,
wherein R1 represents a hydrogen atom or a methyl group; R2 represents an alkyl group; m represents 1 to 5; and n represents the number of repetitions.
This tire state estimation method includes the following. (1) Disposing, on the inner side of a tire, at least one power generator that generates voltage in response to deformation of the tire. (2) Acquiring measurement data in a time series obtained by measuring, while the tire is rotating, the voltage and/or a physical quantity corresponding to the voltage. (3) Identifying a peak that repeatedly appears in the measurement data. (4) Identifying a value of the peak and/or an interval of the peak. (5) Estimating the state of the tire on the basis of the identified value and/or the identified interval. The power generator is provided with a first member and a second member. The first member and the second member are configured such that one is positively charged and the other is negatively charged in accordance with pressure applied to the first member and the second member.
An object of the present disclosure is to provide a golf ball having a small difference in the flight distance on a driver shot when hit at a high head speed and when hit at a low head speed. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer and an outermost cover, wherein when a center hardness Ho (Shore C hardness) of the spherical core, a surface hardness Hs (Shore C hardness) of the spherical core, a hardness difference S=Hs−Ho, a material hardness Hm (Shore D hardness) of the intermediate layer, a material hardness Hc (Shore D hardness) of the outermost cover, a thickness Tc (mm) of the outermost cover, and a total lower volume Vi (mm3) of a plurality of dimples satisfy Vi>365 and (Hc/Tc)×(S×Hm/Vi)≤130.
An object of the present disclosure is to provide a golf ball that has a high spin rate but does not fly up in a high maximum flying height, thereby having a reduced number of shots into the OB area on a driver shot. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer and an outermost cover, wherein a material hardness Hm (Shore D hardness) of the intermediate layer, a material hardness Hc (Shore D hardness) of the outermost cover, a thickness Tc (mm) of the outermost cover, and a total lower volume Vi (mm3) of a plurality of dimples satisfy Vi>365 and (Hc/Tc)×(Hm/Vi)≤7.5.
An object of the present disclosure is to provide a golf ball having a lowered flight distance difference between flight distances on various numbered-iron shots. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer covering the spherical core, and an outermost cover positioned outside the intermediate layer and having a plurality of dimples formed thereon, wherein the plurality of dimples have a total lower volume Vi of more than 365 mm3, and a slab hardness Hc (Shore D) of a cover composition constituting the outermost cover, a thickness Tc (mm) of the outermost cover and the total lower volume Vi (mm3) of the plurality of dimples satisfy a relationship of 8.5≤Tc/Hc×Vi.
Systems and methods receive first data associated with first launch conditions of a first golf ball after the first golf ball moves from a first initial position. The systems and methods determine a simulated landing position of the first golf ball, the simulated landing position determined based at least in part on the launch conditions. The systems and methods receive an actual landing position of the first golf ball, determine second data associated with an error between the simulated landing position and the actual landing position, and train a machine learning model using the error between the simulated landing position and the actual landing position. The systems and methods receive third data associated with second launch conditions of a second golf ball after the second golf ball moves from a second initial position, and determine, based at least in part on inputting the third data into the trained machine learning model, a predicted landing position of the second golf ball.
The pneumatic tire comprises a tread portion, a pair of sidewall portions and a pair of bead portions. At least one of the bead portions is provided with at least one electronic component, a bead apex rubber extending radially outwardly from a bead core, and a bead reinforcing layer extending in the tire radial direction along the bead apex rubber. The bead reinforcement layer comprises a steel cord ply having a spliced portion where both circumferential end portions thereof are overlap-jointed. The electronic component is arranged away from the spliced portion in the tire circumferential direction, and located within the arranged range in the tire radial direction of the steel cord ply.
The present disclosure aims to provide a method for producing a trans-polyisoprenoid (trans-1,4-polyisoprene) with a molecular weight of more than 105 in an enzymatic manner. The present disclosure relate to a method for producing a trans-polyisoprenoid, which includes binding to a lipid membrane in vitro a trans-prenyltransferase (tPT) family protein capable of producing a product with a molecular weight of 104 or more when not bound to any lipid membrane.
An object of the present disclosure is to provide a novel golf ball having excellent spin performance on approach shots. The present disclosure provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body, wherein at least one layer of the paint film contains a polyurethane as a resin component, the polyurethane is obtained by a reaction between a polyol composition containing a polyol and a polyisocyanate composition containing a polyisocyanate, and the polyol composition contains, as a polyol component, a urethane polyol having a structural unit derived from a polyether polycarbonate diol.
A prediction method includes: measuring an actual shape of a rolling reference tire; acquiring a displacement profile as a change in the actual shape due to rolling; calculating displacement amounts of order components of first to Nth orders (N is an integer of 2 or more) in the displacement profile through fast Fourier transform; obtaining, as a quantitative index value, a reciprocal of a sum of displacement amounts of order components reflecting a change in the actual shape due to a sign of the standing wave phenomenon, and acquiring a correlation between a performance index value representing durability of the reference tire and the quantitative index value; and simulating rolling of the reference tire to estimate a virtual quantitative index value corresponding to the quantitative index value, and acquiring a correlation between the virtual quantitative index value and the quantitative index value.
An object of the present disclosure is to provide a golf ball from which stain such as mud or grass juice can be wiped off when the stain is adhered to the golf ball while the spin performance of the golf ball on approach shots is not substantially lowered. The present disclosure provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body, wherein at least one layer of the paint film contains a polyurethane as a resin component, and the polyurethane has a structural unit derived from a polyether polycarbonate diol.
An information processing system and an information processing method that can allow the circumferential length of the tire inner cavity surface of a pneumatic tire to be easily identified. The information processing system can include: a first acquisition processing unit configured to acquire shape identification information used to identify a shape of a pneumatic tire; a second acquisition processing unit configured to acquire circumferential length information corresponding to a circumferential length of a tire inner cavity surface of the pneumatic tire on the basis of the shape identification information acquired by the first acquisition processing unit; and an output processing unit configured to output the circumferential length information acquired by the second acquisition processing unit.
G01B 21/02 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
G06K 7/14 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
Provided is a pneumatic tire that has substantially improved crack resistance performance and durability performance; and the pneumatic tire has a tread portion with grooves formed on the surface, the tread portion is formed of a first rubber composition constituting a groove bottom portion, and a second rubber composition adjacent to the first rubber composition on the inner side of the groove bottom portion in the tire radial direction; and the acetone extractable content of the first rubber composition: E1 (% by mass) and the acetone extractable content of the second rubber composition: E2 (% by mass) satisfy (E1−E2)<20, and, when the tire is assembled to a standardized rim and the internal pressure is 250 kPa, the cross-sectional width of the tire Wt (mm), the outer diameter Dt (mm), and the volume of the space occupied by the tire: virtual volume V (mm3) satisfy following (formula 1) and (formula 2).
Provided is a pneumatic tire that has substantially improved crack resistance performance and durability performance; and the pneumatic tire has a tread portion with grooves formed on the surface, the tread portion is formed of a first rubber composition constituting a groove bottom portion, and a second rubber composition adjacent to the first rubber composition on the inner side of the groove bottom portion in the tire radial direction; and the acetone extractable content of the first rubber composition: E1 (% by mass) and the acetone extractable content of the second rubber composition: E2 (% by mass) satisfy (E1−E2)<20, and, when the tire is assembled to a standardized rim and the internal pressure is 250 kPa, the cross-sectional width of the tire Wt (mm), the outer diameter Dt (mm), and the volume of the space occupied by the tire: virtual volume V (mm3) satisfy following (formula 1) and (formula 2).
1700
≦
(
Dt
2
×
π
/
4
)
/
W
t
≦
2827.4
(
formula
1
)
[
(
V
+
1.5
×
10
7
)
/
W
t
]
≦
2.88
×
10
5
(
formula
2
)
To provide an analysis method that can analyze a crystal structure, a crystal morphology, a crystal distribution of a rubber material in stretching even in a local portion of the rubber material. The present disclosure relates to a method of analyzing a crystal structure, a crystal morphology, or a crystal distribution of a rubber material in stretching using a nanodiffraction imaging technique that analyzes an electron diffraction pattern acquired by scanning electron beams converged to a diameter of 100 nm or less on a surface of the rubber material while a behavior of stretching deformation of the rubber material and/or a state of the rubber material in stretching are observed using a transmission electron microscope.
G01N 23/20058 - Measuring diffraction of electrons, e.g. low energy electron diffraction [LEED] method or reflection high energy electron diffraction [RHEED] method
A golf club head includes a striking face having a face center and defining a face plane, a virtual vertical center plane perpendicular to the face plane and passing through the face center, a sole portion, a top portion, a heel portion, a toe portion, a hosel configured to receive a shaft, and a loft, L, no less than 39°. A center of gravity is spaced from the vertical center plane by a distance, D7. A moment of inertia, Iyy, is measured about an axis extending in a heel to toe direction, parallel with a ground plane, and passes through the center of gravity, such that Iyy/D7≥527.4 g·cm/°×L−23,580 g·cm.
A medical rubber composition can include: a base polymer containing halogenated isobutylene-isoprene-rubber; and an acid acceptor, and a content of the acid acceptor can be 1 part by mass to 3 parts by mass with respect to 100 parts by mass of the base polymer, and a BET specific surface area of the acid acceptor can be 150 m2/g to 200 m2/g.
A putter-type golf club head that, when oriented in a reference position, includes a blade portion having a striking face, a top line, and a sole, the striking face in turn including a face center. The club head further includes a rear portion in communication with, and rearward of, the blade portion, and it includes an alignment element rearward of, and recessed toward the sole from, the top line. The alignment element defines a virtual center line segment oriented in a substantially front-to-rear direction at a height between 19 mm and 24 mm from a lowermost point of the sole, the center line segment having a length no less than 34 mm and being not spaced more than 10 mm from a virtual vertical plane passing through the face center and extending generally perpendicular to the striking face. A width of the club head is no less than 3.0 in.
A tire has a tread portion including a block row including a plurality of blocks separated by a plurality of axial grooves. Each of the blocks is provided with one circumferential sipe extending in the tire circumferential direction so as to communicate with at least one of the axial grooves. The circumferential sipe includes at least one bent portion bent locally. At least one of edges of the circumferential sipe is provided with a chamfered portion.
A method for producing a retreaded tire 2 includes a step of shaving a tread 104 from a tire 102, a step of attaching a tag member 30 to a formed surface BD made by shaving the tread 104, and a step of reconstructing a new tread 4. The formed surface BD is located radially outward of a maximum width position of the tire 2. The tag member 30 is located radially inward of an end of a belt 14. An initial vulcanization time t10 of a rubber composition for a protector 34 of the tag member 30 is shorter than an initial vulcanization time t10 of a rubber composition for the new tread 4.
Provided is a polymer-coated glass substrate having a surface with controlled irregularity and a low elastic modulus. The polymer-coated glass substrate includes a glass substrate and two or more hydrophilic polymer layers on a surface of the glass substrate.
The tire includes a tread portion whose position when mounted on a vehicle is specified. The tread portion includes a first tread edge, a second tread edge, a plurality of circumferential grooves, and five land regions. The circumferential grooves include a first shoulder circumferential groove, a first crown circumferential groove, a second shoulder circumferential groove, and a second crown circumferential groove. The second shoulder circumferential groove has groove walls each configured as a zigzag surface. The second crown circumferential groove has groove walls each configured as a flat surface. Each of the groove walls of the second shoulder circumferential groove includes first surfaces and second surfaces arranged alternately. Each of the groove walls of the second shoulder circumferential groove includes has 2 to 4 first surfaces between each two of axial grooves adjacent to each other in a tire circumferential direction.
A golf club comprises: a pipe-shaped shaft having a space therein and having a first end and a second end; a weight member attached to the shaft on a first end side; and a golf club head attached to the shaft on a second end side. The weight member comprises: a main body portion at least partially disposed in the space of the pipe-shaped shaft; and a flange portion disposed outside the pipe-shaped shaft. The flange portion comprises: a first portion extending in the radial direction of the shaft and having an outer diameter larger than an outer diameter of the shaft at the first end; and a second portion extending in the axial direction of the shaft from the first portion toward the second end so as to cover an outer circumferential surface of the shaft.
A golf club shaft includes a plurality of fiber reinforced resin layers, a tip end, and a butt end. The golf club shaft also includes a plurality of extending portions each having an axial directional length of greater than 25 mm, and a plurality of transition portions each having an axial directional length of less than or equal to 25 mm and each having an outer diameter changing by 0.3 mm or more. Each of the transition portions connects two of the extending portions. The extending portions include at least one intermediate portion connecting two of the transition portions. The number of the transition portions is greater than or equal to 2, and may be greater than or equal to 3. The extending portions may include a tip extending portion and a butt extending portion.
B32B 3/18 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
An air pressure monitoring apparatus includes an air pressure acquisition unit, a pressure-adjustment determination unit, and a determination unit. The air pressure acquisition unit acquires data on the air pressure in a tire attached to a vehicle. The pressure-adjustment determination unit determines whether the air pressure in the tire has been adjusted. The determination unit determines whether the tire has a slow puncture based on time-course changes in the data on the air pressure. When the pressure-adjustment determination unit has determined that the air pressure in the tire has been adjusted, the determination unit corrects lastly acquired data on the air pressure and determines whether the tire has a slow puncture based on the corrected data on the air pressure.
A tire comprises a tread portion comprising circumferential grooves and land portions divided thereby. The land portions include a first shoulder land portion and a first middle land portion adjacent thereto. The first shoulder land portion is provided with first shoulder sipes. The middle land portion is provided with first middle sipes. Each of the first shoulder sipes and the first middle sipes comprises a main portion extending in the tire radial direction, and a widened portion having a width greater than the main portion and opened at the tread surface of the land portion. The opening width of the first shoulder sipe at the tread surface is larger than the opening width of the first middle sipe at the tread surface.
A pneumatic tire includes a reinforcing filler arranged along a bead core. The reinforcing filler includes an inner portion extending in the tire radial direction, outer portion extending in the tire radial direction, and a middle portion extending in the tire axial direction on the radially inner side of the bead core so as to connect the inner portion and the outer portion. The outer portion has an outer end in the tire radial direction located radially inside an outer end in the tire radial direction of the inner portion and located radially outside a center position of a section height of the bead core in the tire radial direction.
A tire state determination system can acquire, from a vehicle, state data including various types of information that may exert influence on deterioration of a base body portion of a tire, can calculate, based on the acquired state data, an evaluation value S indicating a state of the base body portion of the tire, and can determine reusability of the tire based on the evaluation value S.
A golf club head includes a loft no less than 40 degrees; a striking face; a virtual center plane that is vertical and perpendicular to a virtual striking face plane and includes a face center; a rear face; and a recess. The recess extends in a heel-to-toe direction along an upper sole surface and has a depth that varies in the heel-to-toe direction such that a first depth corresponds with a first location heel-ward of the face center and a second depth corresponds with a second location toe-ward of the face center, the first depth being no less than 10 mm and greater than the second depth by at least 5 mm. An insert is received in the recess. And a center of gravity of the golf club head is spaced no greater than 5.0 mm from the virtual center plane measured in the heel-to-toe direction.
Provided is a tire having high peeling resistance such that an electronic component mounting member unlikely peels off from the surface of the tire even when a large impact is applied on the tire during a high-speed running in a low-temperature environment. In the tire, the electronic component mounting member for incorporating an electronic component is mounted on the surface of a tire inner member, the electronic component mounting member comprises an electronic component storage portion for storing the electronic component and a joint portion having a joint surface for mounting the electronic component mounting member on the surface of the tire inner member, and the complex elastic modulus E*r (MPa) of the joint portion at 0° C. and the complex elastic modulus E*i (MPa) of the tire inner member at 0° C. satisfy the following (formula 1).
Provided is a tire having high peeling resistance such that an electronic component mounting member unlikely peels off from the surface of the tire even when a large impact is applied on the tire during a high-speed running in a low-temperature environment. In the tire, the electronic component mounting member for incorporating an electronic component is mounted on the surface of a tire inner member, the electronic component mounting member comprises an electronic component storage portion for storing the electronic component and a joint portion having a joint surface for mounting the electronic component mounting member on the surface of the tire inner member, and the complex elastic modulus E*r (MPa) of the joint portion at 0° C. and the complex elastic modulus E*i (MPa) of the tire inner member at 0° C. satisfy the following (formula 1).
E
*
r
/
E
*
i
<
1
(
formula
1
)
A tire assembly can include a rim and a pneumatic tire. A sound damper can be in a tire inner cavity, defined by an outer surface of the rim and an inner surface of the pneumatic tire, extending in a tire circumferential direction. The rim can have a rim diameter RD not greater than 18 inches. A ratio SH/SW of a cross-sectional height SH to a tire cross-sectional width SW of the pneumatic tire can be 30% to 45%. A ratio RW/SW of a rim width RW of the rim to the tire cross-sectional width SW can be 78% to 99%. The sound damper can include a sponge material adhered to at least one of the outer surface of the rim and the inner surface of the pneumatic tire. The sponge material can have a volume of not less than 0.4% of a total volume of the tire inner cavity.
An iron-type golf club head includes a heel, a toe, a top portion, a sole portion, a top portion, a rear portion, and a striking wall. The striking wall includes a striking face having a plurality of scorelines and a face center and a rear surface. A minimum striking wall thickness Tmin is no greater than 2.5 min. A thickened central region of the striking wall has a maximum thickness, Tmax, greater than Tmin but no greater than 2.75. A first thickness T1 of the striking wall corresponds with a first location spaced toe-ward from the face center by a first distance D1 of between 20 mm and 30 mm. A second thickness T2 of the striking wall corresponds with a second location spaced heel-ward from the face center by the first distance D1 such that T1 is greater than T2 by no less than 0.05 mm.
A tire can include a tread portion and a buttress portion. The tread portion can include a crown region between a tire equator and a middle position and a shoulder region between a first tread ground-contact end and the middle position. The buttress portion can have a land ratio which is a land portion ratio between the first tread ground-contact end and a first position. A land ratio of the shoulder region can be larger than a land ratio of the crown region and the land ratio of the buttress portion.
A road surface condition determination system (100) comprises: a first acquisition processing unit (71) that acquires weather information of a first region including a first road which is among a plurality of predetermined roads; a second acquisition processing unit (72) that acquires structure information of the first road; and a determination processing unit (75) that determines the road surface condition of the first road on the basis of the first region weather information acquired by the first acquisition processing unit (71) and the first road structure information acquired by the second acquisition processing unit (72).
A golf ball can include a core, amid layer, and a cover. In the golf ball, a hardness Ho at a central point of the core, a core surface hardness Hs, a hardness H1 at a point to which a distance from the central point of the core can be equal to 25% of a radius of the core, a hardness H2 at a point to which a distance from the central point of the core can be equal to 75% of the radius of the core, a hardness Hm of the mid layer, and a hardness Hc of the cover can satisfy all of the following relational expressions.
A golf ball can include a core, amid layer, and a cover. In the golf ball, a hardness Ho at a central point of the core, a core surface hardness Hs, a hardness H1 at a point to which a distance from the central point of the core can be equal to 25% of a radius of the core, a hardness H2 at a point to which a distance from the central point of the core can be equal to 75% of the radius of the core, a hardness Hm of the mid layer, and a hardness Hc of the cover can satisfy all of the following relational expressions.
Ho≤H1≤H2≤Hs (1)
A golf ball can include a core, amid layer, and a cover. In the golf ball, a hardness Ho at a central point of the core, a core surface hardness Hs, a hardness H1 at a point to which a distance from the central point of the core can be equal to 25% of a radius of the core, a hardness H2 at a point to which a distance from the central point of the core can be equal to 75% of the radius of the core, a hardness Hm of the mid layer, and a hardness Hc of the cover can satisfy all of the following relational expressions.
Ho≤H1≤H2≤Hs (1)
Ho≤Hs (2)
A golf ball can include a core, amid layer, and a cover. In the golf ball, a hardness Ho at a central point of the core, a core surface hardness Hs, a hardness H1 at a point to which a distance from the central point of the core can be equal to 25% of a radius of the core, a hardness H2 at a point to which a distance from the central point of the core can be equal to 75% of the radius of the core, a hardness Hm of the mid layer, and a hardness Hc of the cover can satisfy all of the following relational expressions.
Ho≤H1≤H2≤Hs (1)
Ho≤Hs (2)
(Hs−Ho)*(3/2)≤(Hm−Hc) (3)
A golf ball can include a core, amid layer, and a cover. In the golf ball, a hardness Ho at a central point of the core, a core surface hardness Hs, a hardness H1 at a point to which a distance from the central point of the core can be equal to 25% of a radius of the core, a hardness H2 at a point to which a distance from the central point of the core can be equal to 75% of the radius of the core, a hardness Hm of the mid layer, and a hardness Hc of the cover can satisfy all of the following relational expressions.
Ho≤H1≤H2≤Hs (1)
Ho≤Hs (2)
(Hs−Ho)*(3/2)≤(Hm−Hc) (3)
(Hs−Hc)*(3/2)≤(Hm−Hs) (4).
A tire 2 includes a tread 4, a belt 16, and a band 18. The belt 16 includes belt cords 44. The band 18 includes band cords 60. The band 18 is composed of a band strip 58. The band strip 58 is a cord array in which the band cords 60 are arranged. A zone from a first end to a second end of the belt 16 is a control zone. Residual tension of the band cords 60 in the control zone is not less than 15.0 N. The control zone includes a crown zone and a pair of shoulder zones. Residual tension of the band cords 60 in the crown zone is higher than residual tension of the band cords 60 in each shoulder zone. A shape index of a reference ground-contact surface of the tire 2 is not less than 1.00 and not greater than 1.30.
B60C 9/22 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
The tire includes a tread portion provided with a first tread edge, a shoulder circumferential groove, and a shoulder land region. The shoulder land region includes an inner area demarcated axially inside from a center position in the tire axial direction of the shoulder land region, an outer area demarcated axially outside from the center position, and a plurality of shoulder axial grooves extending in the tire axial direction at least in the outer area. In a standard tire load loaded state, an average ground contact pressure in the outer area is larger than an average ground contact pressure in the inner area.
The present invention provides a packaged body in which a rubber product for medical use is hermetically packed, the packaging body comprising an oxygen-impermeable packaging material and having a first space part containing the rubber product for medical use and a second space part containing an oxygen detecting agent having a color hue that changes in accordance with an oxygen concentration, the first space part and the second space part being separated from each other by means of an oxygen-permeable partition. The oxygen concentration in the packaged body containing the rubber product for medical use can be confirmed visually, and the oxygen in the packaged body can be maintained at a predetermined concentration or lower, facilitating quality assurance by means of sterilization treatment.
B65D 81/20 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
A61J 1/14 - Containers specially adapted for medical or pharmaceutical purposes DetailsAccessories therefor
A61J 1/18 - Arrangements for indicating condition of container contents, e.g. sterile condition
B65B 55/02 - Sterilising, e.g. of complete packages
B65B 55/08 - Sterilising wrappers or receptacles prior to, or during, packaging by irradiation
B65D 81/26 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, fluids, e.g. exuded by contentsApplications of corrosion inhibitors or desiccators
The pneumatic tire comprises a carcass and a pair of bead portions each with a bead core and a bead apex. The carcass comprises a carcass ply having a pair of turned-up portions and a main portion therebetween. At least one of the bead portions 4 is provided with a bead reinforcing rubber disposed on the axially outside of the turned-up portion. The bead reinforcing rubber comprises an axially outer first reinforcing rubber layer and an axially inner second reinforcing rubber layer. The complex elastic modulus of the second reinforcing rubber layer is smaller than the complex elastic modulus of the first reinforcing rubber layer.
Provided is a method of producing a sulfur-based active material, the method comprising the steps of: (1) mixing an acrylic resin, sulfur, and an iron compound comprising a divalent or trivalent iron ion to obtain a raw material; and (2) baking the raw material, characterized in that a volume energy density is improved while maintaining a capacity retention rate of the active material that constitutes an electrode of a lithium-ion secondary battery.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
The present disclosure provides a method for discriminating carbon black which can discriminate whether or not a carbon black is a recovered carbon black. Provided is a method for discriminating whether or not a carbon black is a recovered carbon black, including examining the presence of an inorganic substance on or near a surface of the carbon black.
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
