Masaru Hirai

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rubber composition employing soft black and a thermosetting resin a...
- Patent number 4,326,576
- Issue date Apr 27, 1982
- The Yokohama Rubber Co., Ltd.
- Yasuhiro Mizumoto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Radial-ply tire having low rolling resistance
- Patent number 4,319,619
- Issue date Mar 16, 1982
- The Yokohama Rubber Co., Ltd.
- Masatoshi Kozima
- B60 - VEHICLES IN GENERAL