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Keitarou OGAWA
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Operation method of vacuum processing device
Patent number
12,002,692
Issue date
Jun 4, 2024
HITACHI HIGH-TECH CORPORATION
Ryoichi Isomura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Operation method of vacuum processing device
Patent number
11,195,733
Issue date
Dec 7, 2021
HITACHI HIGH-TECH CORPORATION
Ryoichi Isomura
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
OPERATION METHOD OF VACUUM PROCESSING DEVICE
Publication number
20220051917
Publication date
Feb 17, 2022
HITACHI HIGH-TECH CORPORATION
Ryoichi Isomura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPERATION METHOD OF VACUUM PROCESSING DEVICE
Publication number
20190295871
Publication date
Sep 26, 2019
Hitachi High-Technologies Corporation
Ryoichi ISOMURA
H01 - BASIC ELECTRIC ELEMENTS