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Tomoaki Takahashi
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Ion exchange membrane and production process therefor
Patent number
10,583,430
Issue date
Mar 10, 2020
Astom Corporation
Tomoaki Takahashi
B32 - LAYERED PRODUCTS
Information
Patent Grant
Separation membrane for redox flow secondary battery and redox flow...
Patent number
9,837,678
Issue date
Dec 5, 2017
Asahi Kasei E-Materials Corporation
Hiroshi Miyazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ink jet head
Patent number
5,451,993
Issue date
Sep 19, 1995
Seikosha Co., Ltd.
Tomoaki Takahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method of processing photosensitive glass
Patent number
5,374,291
Issue date
Dec 20, 1994
Director General of Agency of Industrial Science and Technology
Akira Yabe
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Projection type liquid crystal displaying device
Patent number
4,936,658
Issue date
Jun 26, 1990
Seikosha Co., Ltd.
Sakae Tanaka
G02 - OPTICS
Information
Patent Grant
Projection type liquid crystal displaying device
Patent number
4,861,142
Issue date
Aug 29, 1989
Seikosha Co., Ltd.
Sakae Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection type liquid crystal displaying device
Patent number
4,796,978
Issue date
Jan 10, 1989
Seikosha Co., Ltd.
Sakae Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
ION EXCHANGE MEMBRANE AND PRODUCTION PROCESS THEREFOR
Publication number
20170216832
Publication date
Aug 3, 2017
ASTOM CORPORATION
Tomoaki TAKAHASHI
B32 - LAYERED PRODUCTS