Akio Yamamoto

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Patents Grantslast 30 patents

Information Patent Grant
Pneumatic tire for passenger cars having specified harshness factor
- Patent number 6,167,932
- Issue date Jan 2, 2001
- Sumitomo Rubber Industries, Ltd.
- Akio Yamamoto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire with sipes
- Patent number 5,679,186
- Issue date Oct 21, 1997
- Sumitomo Rubber Industries, Ltd.
- Kenji Tagashira
- B60 - VEHICLES IN GENERAL