Yoshiro Sumiya

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Patents Grantslast 30 patents

Information Patent Grant
Method of analyzing frictional energy of rolling tire
- Patent number 6,263,728
- Issue date Jul 24, 2001
- Toyo Tire & Rubber Co., Ltd.
- Yoshiro Sumiya
- G01 - MEASURING TESTING
Information Patent Grant
Pneumatic radial tire for heavy load with rubber filler comprising...
- Patent number 6,000,452
- Issue date Dec 14, 1999
- Toyo Tire & Rubber Co., Ltd.
- Yoshiro Sumiya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire for heavy-loaded vehicles, with resistance to river...
- Patent number 5,647,925
- Issue date Jul 15, 1997
- Toyo Tire & Rubber Co., Ltd.
- Yoshiro Sumiya
- B60 - VEHICLES IN GENERAL