Hideaki Yokoyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rubber composition
- Patent number 6,730,743
- Issue date May 4, 2004
- Bridgestone Corporation
- Ryuji Nakagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Rubber composition having both high and low molecular weight polyme...
- Patent number 5,959,039
- Issue date Sep 28, 1999
- Bridgestone Corporation
- Hideaki Yokoyama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Rubber compositions for tire tread
- Patent number 5,916,957
- Issue date Jun 29, 1999
- Bridgestone Corporation
- Kuniko Itoh
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire with cap and base structure
- Patent number 5,749,983
- Issue date May 12, 1998
- Bridgestone Corporation
- Hideaki Yokoyama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Process for producing a diolefin polymer or copolymer and a rubber...
- Patent number 5,527,860
- Issue date Jun 18, 1996
- Japan Synthetic Rubber Co., Ltd.
- Yoshitaka Yamakawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Rubber composition
- Publication number 20020099123
- Publication date Jul 25, 2002
- Bridgestone Corporation
- Ryuji Nakagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...