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Norio Okabayashi
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Himeji, JP
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last 30 patents
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Patent Grant
Stamper for injection molding
Patent number
5,484,324
Issue date
Jan 16, 1996
Daicel Chemical Industries, Ltd.
Norio Okabayashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Electrolytic cleaning method and electrolytic cleaning solution for...
Patent number
5,104,501
Issue date
Apr 14, 1992
Daicel Chemical Industries, Ltd.
Norio Okabayashi
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Stamper cleaning apparatus
Patent number
5,024,744
Issue date
Jun 18, 1991
Daicel Chemical Industries, Ltd.
Norio Okabayashi
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Metal mold and stamper for injection molding of a plastic disc for...
Patent number
4,627,809
Issue date
Dec 9, 1986
Daicel Chemical Industries, Ltd.
Norio Okabayashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for electroforming a stamper for producing a h...
Patent number
4,539,079
Issue date
Sep 3, 1985
Daicel Chemical Industries, Ltd.
Norio Okabayashi
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR