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Seiichiro Iwafune
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Hoya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Rubber composition for tire treads
Patent number
6,489,389
Issue date
Dec 3, 2002
Bridgestone Corporation
Toshiyuki Ohta
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Rubber composition and all season type pneumatic tires made from a...
Patent number
5,753,365
Issue date
May 19, 1998
Bridgestone Corporation
Yoshiyuki Morimoto
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Pneumatic tire with foam rubber in the tread
Patent number
5,351,734
Issue date
Oct 4, 1994
Bridgestone Corporation
Hiroshi Mouri
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 foamed tread rubber
Patent number
5,147,477
Issue date
Sep 15, 1992
Bridgestone Corporation
Hiroshi Mouri
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Rubber compositions with granules of sulfur, oil and methylstyrene
Patent number
4,775,724
Issue date
Oct 4, 1988
Bridgestone Corporation
Masaaki Morimoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
RUBBER COMPOSITION FOR TIRE TREADS
Publication number
20020169245
Publication date
Nov 14, 2002
TOSHIYUKI OHTA
B60 - VEHICLES IN GENERAL