Kenichi Natsui

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum insulated switching apparatus
- Patent number 6,153,846
- Issue date Nov 28, 2000
- Hitachi, Ltd.
- Ayumu Morita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave plasma generator
- Patent number 5,620,522
- Issue date Apr 15, 1997
- Hitachi, Ltd.
- Satoshi Ichimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compression gas puffer type circuit breaker
- Patent number 5,610,381
- Issue date Mar 11, 1997
- Hitachi, Ltd.
- Eisaku Mizufune
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave-powered plasma-generating apparatus and method
- Patent number 5,266,146
- Issue date Nov 30, 1993
- Hitachi, Ltd.
- Yasunori Ohno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for surface modification and apparatus therefor
- Patent number 5,246,741
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Koukichi Ouhata
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method and apparatus for forming a film
- Patent number 5,064,520
- Issue date Nov 12, 1991
- Hitachi, Ltd.
- Kiyoshi Miyake
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...