Kazuaki Oishi

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Gas-insulated switchgear apparatus
- Patent number 4,866,569
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Kiyoshi Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas insulated switching apparatus
- Patent number 4,747,015
- Issue date May 24, 1988
- Hitachi, Ltd.
- Kiyoshi Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Compact-type gas-insulated switchgear apparatus
- Patent number 4,744,002
- Issue date May 10, 1988
- Hitachi, Ltd.
- Haruji Nakano
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Three-phase combined type gas insulated electrical apparatus
- Patent number 4,458,099
- Issue date Jul 3, 1984
- Hitachi, Ltd.
- Susumu Takeuti
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas-insulated disconnecting switch
- Patent number 4,403,125
- Issue date Sep 6, 1983
- Hitachi, Ltd.
- Yukinori Yamaoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas insulated power switch-gear apparatus
- Patent number 4,354,220
- Issue date Oct 12, 1982
- Hatachi, Ltd.
- Kazuaki Oishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas-insulated switchgear apparatus
- Patent number 4,291,363
- Issue date Sep 22, 1981
- Hitachi, Ltd.
- Kazuaki Oishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas-insulated electric apparatus and method of detecting partial di...
- Patent number 4,277,746
- Issue date Jul 7, 1981
- Hitachi, Ltd.
- Kozin Abe
- G01 - MEASURING TESTING
Information Patent Grant
Gas insulated switch-gear apparatus
- Patent number 4,237,520
- Issue date Dec 2, 1980
- Hitachi, Ltd.
- Kazuaki Oishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas-insulated switchgear apparatus
- Patent number 4,215,256
- Issue date Jul 29, 1980
- Hitachi, Ltd.
- Minoru Sakaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Kazuaki Oishi

Person

Patents Grantslast 30 patents

Gas-insulated switchgear apparatus

Gas insulated switching apparatus

Compact-type gas-insulated switchgear apparatus

Three-phase combined type gas insulated electrical apparatus

Gas-insulated disconnecting switch

Gas insulated power switch-gear apparatus

Gas-insulated switchgear apparatus

Gas-insulated electric apparatus and method of detecting partial di...

Gas insulated switch-gear apparatus

Gas-insulated switchgear apparatus