Yoshifumi Yamamoto

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming high abrasion resisting layers on parent materials
- Patent number 5,096,662
- Issue date Mar 17, 1992
- Mazda Motor Corporation
- Yoshifumi Yamamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Slide contacting member and production method therefor
- Patent number 4,774,393
- Issue date Sep 27, 1988
- Mazda Motor Corporation
- Kouji Tarumoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rotor housing for a rotary piston engine having softened areas surr...
- Patent number 4,755,116
- Issue date Jul 5, 1988
- Mazda Motor Corporation
- Kouji Tarumoto
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method for manufacturing an apex seal for a rotary piston engine us...
- Patent number 4,738,602
- Issue date Apr 19, 1988
- Mazda Motor Corporation
- Junichi Yamamoto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES