Kojiro Yamaguchi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pneumatic tire having foamed rubber
- Patent number 6,021,831
- Issue date Feb 8, 2000
- Bridgestone Corporation
- Koji Yamauchi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire having foamed rubber
- Patent number 5,788,786
- Issue date Aug 4, 1998
- Bridgestone Corporation
- Koji Yamauchi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire having expanded outer tread rubber layer
- Patent number 5,181,976
- Issue date Jan 26, 1993
- Bridgestone Corporation
- Seiichiro Iwafune
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire having outer tread layer of foam rubber
- Patent number 5,176,765
- Issue date Jan 5, 1993
- Bridgestone Corporation
- Kojiro Yamaguchi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tires having excellent traction and braking performances
- Patent number 4,723,584
- Issue date Feb 9, 1988
- Bridgestone Corporation
- Kojiro Yamaguchi
- B60 - VEHICLES IN GENERAL