Ken-ichi Natsui

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Puffer type gas breaker
- Patent number 5,793,597
- Issue date Aug 11, 1998
- Hitachi, Ltd.
- Eisaku Mizufune
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transformer station and breaker apparatus
- Patent number 5,777,842
- Issue date Jul 7, 1998
- Hitachi, Ltd.
- Masanori Tsukushi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Plasma generating apparatus
- Patent number 5,133,825
- Issue date Jul 28, 1992
- Hi Tachi, Ltd.
- Yoshimi Hakamata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetron sputter apparatus and method for forming films by using t...
- Patent number 4,865,709
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Yukio Nakagawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Compressed-gas circuit interrupter with a heater
- Patent number 4,434,335
- Issue date Feb 28, 1984
- Hitachi, Ltd.
- Ken-ichi Natsui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Puffer-type gas-blast circuit breaker
- Patent number 4,182,942
- Issue date Jan 8, 1980
- Hitachi, Ltd.
- Osamu Koyanagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Puffer-type gas-blast circuit breaker
- Patent number 4,160,888
- Issue date Jul 10, 1979
- Hitachi, Ltd.
- Ken-ichi Natsui
- H01 - BASIC ELECTRIC ELEMENTS