Ken-ichi Kawakami

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Ohtsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Propylene polymer film
- Patent number 4,966,933
- Issue date Oct 30, 1990
- Toray Industries, Inc.
- Ken-ichi Kawakami
- B32 - LAYERED PRODUCTS
Information Patent Grant
Polyester film with smooth and highly adhesive surface and method o...
- Patent number 4,732,814
- Issue date Mar 22, 1988
- Toray Industries, Inc.
- Kenji Hatada
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polyester film and magnetic recording medium therefrom
- Patent number 4,590,119
- Issue date May 20, 1986
- Toray Industries, Inc.
- Ken-ichi Kawakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording disk
- Patent number 4,514,452
- Issue date Apr 30, 1985
- Toray Industries, Inc.
- Kazuhiro Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for improving the surface of plastic materials
- Patent number 4,247,496
- Issue date Jan 27, 1981
- Toray Industries, Inc.
- Ken-Ichi Kawakami
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL