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Toshifumi Takisawa
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Nagahama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical recording medium
Patent number
5,972,457
Issue date
Oct 26, 1999
Mitsubishi Chemical Corporation
Fujio Matsuishi
G11 - INFORMATION STORAGE
Information
Patent Grant
Polyester film
Patent number
5,391,429
Issue date
Feb 21, 1995
Diafoil Hoechst Company, Limited
Yuzo Otani
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Magnetic recording medium comprising a polyethylene-2,6-naphthalate...
Patent number
5,364,684
Issue date
Nov 15, 1994
Diafoil Hoechst Company, Limited
Seiji Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Polyester films, magnetic recording media and film capacitors produ...
Patent number
5,106,681
Issue date
Apr 21, 1992
Diafoil Company, Limited
Kazuo Endo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Polyester film for magnetic recording media
Patent number
5,006,589
Issue date
Apr 9, 1991
Diafoil Company, Limited
Seiji Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Polyester films, magnetic recording media and film capacitors produ...
Patent number
4,990,400
Issue date
Feb 5, 1991
Diafoil Company, Limited
Kazuo Endo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyester film for magnetic recording media
Patent number
4,865,898
Issue date
Sep 12, 1989
Diafoil Company, Limited
Yujiro Fukuda
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Optical recording medium
Publication number
20030161987
Publication date
Aug 28, 2003
MITSUBISHI CHEMICAL CORPORATION
Akira Nakajima
G11 - INFORMATION STORAGE