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Hiroshi Umehara
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Water-soluble photoresist composition
Patent number
5,948,592
Issue date
Sep 7, 1999
Fuji Chemicals Industrial Co., Ltd.
Hiroshi Umehara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Negative photoresist composition comprising a photosensitizer of a...
Patent number
5,128,231
Issue date
Jul 7, 1992
Oki Electric Industry Co., Ltd.
Toshio Itoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
DISASTER PREVENTION EQUIPMENT FOR HYDROGEN STATION
Publication number
20230390596
Publication date
Dec 7, 2023
HOCHKI CORPORATION
Hiroshi UMEHARA
A62 - LIFE-SAVING FIRE-FIGHTING
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Patent Application
DISASTER-PREVENTING DEVICE
Publication number
20120285710
Publication date
Nov 15, 2012
Hiroshi Umehara
A62 - LIFE-SAVING FIRE-FIGHTING