Takeji Tsuchiya

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a magnetic material in the form of a multilayer fi...
- Patent number 5,552,030
- Issue date Sep 3, 1996
- Nippon Piston Ring Co., Ltd.
- Kazuo Shimizu
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Three-piece type oil ring assembly
- Patent number 5,193,820
- Issue date Mar 16, 1993
- Nippon Piston Ring Co., Ltd.
- Takeji Tsuchiya
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Composite plating bath
- Patent number 5,124,007
- Issue date Jun 23, 1992
- Nippon Piston Ring Co., Ltd.
- Takeji Tsuchiya
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Piston ring having nitriding layer and composite Ni-B plating layer
- Patent number 5,104,132
- Issue date Apr 14, 1992
- Nippon Piston Ring Co., Ltd.
- Motonobu Onoda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Oil scraper ring with controlled gap arrangement
- Patent number 4,473,232
- Issue date Sep 25, 1984
- Nippon Piston Ring Co., Ltd.
- Genkichi Umeha
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...