Takeshi Tsuchiya

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piston ring
- Patent number 5,531,195
- Issue date Jul 2, 1996
- Nippon Piston Ring Co., Ltd.
- Motonobu Onoda
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method of producing piston ring
- Patent number 5,433,001
- Issue date Jul 18, 1995
- Nippon Piston Ring Co., Ltd.
- Takeshi Tsuchiya
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Piston ring
- Patent number 5,405,154
- Issue date Apr 11, 1995
- Nippon Piston Ring Co., Ltd.
- Takeshi Tsuchiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Piston ring and process for manufacturing the same
- Patent number 5,292,381
- Issue date Mar 8, 1994
- Nippon Piston Ring Co., Ltd.
- Takeshi Tsuchiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Nitrided piston ring with outer layer on surface
- Patent number 4,570,946
- Issue date Feb 18, 1986
- Nippon Piston Ring Co., Ltd.
- Takeshi Tsuchiya
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Nitrided piston ring with outer layer on surface
- Patent number 4,557,492
- Issue date Dec 10, 1985
- Nippon Piston Ring Co., Ltd.
- Takeshi Tsuchiya
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...