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Rinjiro Ichikawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optically compensating film, optical compensator and liquid crystal...
Patent number
5,396,355
Issue date
Mar 7, 1995
Seiko Epson Corporation
Hiroshi Wada
G02 - OPTICS
Information
Patent Grant
Optically compensating film, optical compensator, and liquid crysta...
Patent number
5,343,317
Issue date
Aug 30, 1994
Seiko Epson Corporation
Hiroshi Wada
G02 - OPTICS
Information
Patent Grant
Optical compensator and liquid crystal display
Patent number
5,337,174
Issue date
Aug 9, 1994
Seiko Epson Corporation
Hiroshi Wada
G02 - OPTICS
Information
Patent Grant
Laminate for protecting optical recording layer
Patent number
5,051,314
Issue date
Sep 24, 1991
Fujimori Kogyo Co., Ltd.
Rinjiro Ichikawa
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Grant
Liquid crystal display panel incorporating an optical phase shiftin...
Patent number
4,985,285
Issue date
Jan 15, 1991
Fujimori Kogyo Co., Ltd.
Rinjiro Ichikawa
G02 - OPTICS
Information
Patent Grant
Flexible optical recording material in the shape of tape or floppy...
Patent number
4,906,498
Issue date
Mar 6, 1990
Fujimori Kogyo Co., Ltd.
Rinjiro Ichikawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Electrode plates for liquid crystal display panels
Patent number
4,802,742
Issue date
Feb 7, 1989
Toyoboseki Kabushiki Kaisha
Rinjiro Ichikawa
G02 - OPTICS
Information
Patent Grant
Transparent conductive film
Patent number
4,419,399
Issue date
Dec 6, 1983
Toyo Boseki Kabushiki Kaisha
Rinjiro Ichikawa
G02 - OPTICS
Information
Patent Grant
Laminated light-polarizing sheet
Patent number
4,387,133
Issue date
Jun 7, 1983
Toyo Boseki Kabushiki Kaisha
Rinjiro Ichikawa
B32 - LAYERED PRODUCTS
Information
Patent Grant
Laminated light-polarizing sheet
Patent number
4,230,768
Issue date
Oct 28, 1980
Toyo Boseki Kabushiki Kaisha
Hiroyuki Hamada
B32 - LAYERED PRODUCTS
Information
Patent Grant
Light-polarizing film
Patent number
4,229,498
Issue date
Oct 21, 1980
Toyo Boseki Kabushiki Kaisha
Hajime Suzuki
G02 - OPTICS