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Masuhiro Shouji
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Iwaki, JP
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last 30 patents
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Patent Grant
Method of absorbing rays outside a visible region
Patent number
6,180,224
Issue date
Jan 30, 2001
Nissan Chemical Industries, Ltd.
Masuhiro Shouji
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Polymeric optical low-pass filter and device thereof
Patent number
5,820,779
Issue date
Oct 13, 1998
Kureha Kagaku Kogyo Kabushiki Kaisha
Masuhiro Shouji
G02 - OPTICS
Information
Patent Grant
Production process of composite optical filter
Patent number
5,793,544
Issue date
Aug 11, 1998
Kureha Kagaku Kogyo Kabushiki Kaisha
Takeo Ogihara
G02 - OPTICS
Information
Patent Grant
Plastic optical material
Patent number
5,759,448
Issue date
Jun 2, 1998
Kureha Kagaku Kogyo Kabushiki Kaisha
Hiroki Katono
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Infrared-blocking optical fiber
Patent number
5,691,838
Issue date
Nov 25, 1997
Kureha Kagaku Kogyo Kabushiki Kaisha
Masuhiro Shouji
G02 - OPTICS
Information
Patent Grant
Plastic optical material and production process thereof
Patent number
5,672,655
Issue date
Sep 30, 1997
Kureha Kagaku Kogyo Kabushiki Kaisha
Hiroki Katono
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Plastic optical filter
Patent number
5,611,965
Issue date
Mar 18, 1997
Kureha Kagaku Kogyo Kabushiki Kaisha
Masuhiro Shouji
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...