Kenichi Kawasumi

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Oume, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for removing an organic film
- Patent number 5,503,708
- Issue date Apr 2, 1996
- Hitachi, Ltd.
- Kootaroo Koizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method for surface treatment
- Patent number 5,478,401
- Issue date Dec 26, 1995
- Hitachi, Ltd.
- Sukeyoshi Tsunekawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Surface treatment apparatus
- Patent number 5,246,526
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Sumio Yamaguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-pressure discharge lamp operating circuit
- Patent number 4,587,460
- Issue date May 6, 1986
- Hitachi, Ltd.
- Seiichi Murayama
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR