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Ryutaro Ishii
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Mitaka, JP
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last 30 patents
Information
Patent Grant
Method and apparatus for forming a cylindrical member
Patent number
5,348,600
Issue date
Sep 20, 1994
Bridgestone Corporation
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Tire building machine having a cylindrical member transfer apparatus
Patent number
5,156,713
Issue date
Oct 20, 1992
Bridgestone Corporation
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Tire building apparatus including bead supply means for bead setters
Patent number
5,051,149
Issue date
Sep 24, 1991
Bridgestone Corporation
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for sticking rubber sheet material
Patent number
4,812,196
Issue date
Mar 14, 1989
Bridgestone Corporation
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for manufacturing ring-shaped bodies
Patent number
4,775,433
Issue date
Oct 4, 1988
Bridgestone Corporation
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process and apparatus for joining a rubber sheet member on a drum
Patent number
4,596,617
Issue date
Jun 24, 1986
Bridgestone Corporation
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Rolled sheet paying out transfer apparatus
Patent number
4,540,131
Issue date
Sep 10, 1985
Bridgestone Tire Company Limited
Ryutaro Ishii
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL