TPR Co., Ltd.

Japan

 
Total IP 157
Total IP Rank # 8,268
IP Activity Score 3/5.0    140
IP Activity Rank # 4,911
Stock Symbol 64630 (tse)
ISIN JP3542400001
Market Cap. 51117740184.0  (JPY)
Industry Auto Parts
Sector Consumer Cyclical

Patents

Trademarks

67 0
0 0
90 0
0
 
Last Patent 2025 - Piston ring
First Patent 2006 - Electric double layer capacitor

Latest Inventions, Goods, Services

2024 Invention Insert member for rotary electric machine. [Problem]To provide an insert member for a rotary elec...
Invention Insert member for rotary electric machine. [Problem] To provide an insert member, the thermal con...
Invention Stylus. This stylus is provided at a tip of a measurement probe, the stylus comprising: a stylus ...
Invention Electrode for capacitors, method for producing same and electrochemical capacitor. This electrode...
2023 Invention Oil ring. A land space, which is a groove-shaped space surrounded by a pair of land parts and a w...
Invention Electricity supply control device. The objective of the present invention is to supply sufficient...
Invention Catalyst-loaded carbon, membrane electrode assembly using same for polymer electrolyte fuel cells...
Invention Casting system. A casting system (10) includes a plurality of mold tables (41 and 42), molten me...
Invention Mold cooling device, cast manufacturing system, and cast manufacturing method. A cooling device ...
Invention Thermoelectric conversion module and structure for thermoelectric conversion element. A thermoele...
Invention Cylinder liner and reciprocating engine comprising cylinder liner. The present invention makes it...
Invention Piston unit, top land member, and combination of piston unit parts. A piston unit adapted to rec...
Invention Piston unit, top land member, and combination of piston unit parts. This piston unit, which recip...
2022 Invention Iron-based sintered alloy valve seat. The present invention solves a novel problem of corrosive w...
Invention Iron-based sintered alloy valve sheet. The purpose of the present invention is to solve the new p...
Invention Piston ring. An outer circumferential surface of a piston ring has a cut surface forming a notch...
Invention Piston ring. An outer peripheral surface of a piston ring has a cut surface provided to form a cu...
Invention Piston ring. The outer peripheral surface of this piston ring has a cut surface that is provided ...
Invention Piston ring. The outer peripheral surface of this piston ring has a cut surface that forms a cuto...
Invention Piston ring. This piston ring is used in an internal combustion engine that uses a hydrogen gas f...
Invention Compression ring. This compression ring is for use in a spark-ignition engine using a hydrogen ga...
Invention Piston ring combination, and internal combustion engine. A combination of piston rings assembled ...
Invention Piston ring combination, and internal combustion engine. A piston ring combination for mounting t...
Invention Oil ring. An oil ring according to the present invention includes: a pair of segments that are fo...
Invention Oil ring. This oil ring comprises a pair of segments that are annularly formed so as to follow th...
Invention Electromagnetic wave absorber and electromagnetic wave shielding composite. Provided are: an ele...
Invention Electromagnetic wave absorber and electromagnetic wave shielding composite. Provided are: an elec...
Invention Cylinder. Provided is a cylinder having grooving in a cylinder inner circumferential surface. The...
Invention Piston and piston ring combination structure and partition ring. According to the present inventi...
Invention Oil control ring. An oil control ring comprises: an oil ring having a pair of land parts arranged...
Invention Oil control ring. This oil control ring comprises: an oil ring in which a pair of land sections d...
Invention Compression ring. An outer peripheral surface of a compression ring includes a barrel curved surf...
2021 Invention Sliding member. 3 bonding is observed in the DLC coating in addition to a G band derived from the...
Invention Sliding member. An object of the present invention is to provide a sliding member coated with a D...
Invention Sliding member. The present invention addresses the problem of providing a sliding member covered...
Invention Sliding member. The present invention addresses the problem of providing a sliding member that is...
Invention Space expander and oil ring. This space expander comprises: an expander body that is annularly fo...
Invention Crn coating film and sliding member. The present invention addresses the problem of providing a C...
Invention Combination of piston rings, and combination structure of piston and piston rings. A combination ...
Invention Combination of piston rings and combined structure of piston and piston rings. The combination of...
Invention Combination of piston rings and combined structure of pistons and piston rings. This combination ...
Invention Sintered alloy valve guide and method of producing sintered alloy valve guide. The present invent...
Invention Sintered alloy valve guide, and method for manufacturing sintered alloy valve guide. The present ...
Invention Drip prevention device for pressurized pouring furnace. A drip prevention device for a pressuriz...
Invention Piston ring cutting-off device. A retaining unit that retains a stack body in which piston rings...
2020 Invention Centrifugal casting mold and centrifugal casting mold assembly device. A mold used for centrifuga...
Invention Workpiece retaining device. A device according to the present disclosure is a workpiece retainin...
Invention Cylinder liner and cylinder bore. Provided is a cylinder liner which can reduce the friction of t...
2019 Invention Cylinder liner and cylinder bore. The present invention addresses the problem of providing a cyli...