Yasuhide Takeda

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic pressure actuating apparatus for circuit breaker
- Patent number 6,815,629
- Issue date Nov 9, 2004
- Hitachi, Ltd.
- Shinji Seto
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Gas circuit breaker and liquid pressure-driving system to be used t...
- Patent number 5,804,787
- Issue date Sep 8, 1998
- Hitachi, Ltd.
- Goro Daimon
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hydraulic drive device for circuit breaker and circuit breaker usin...
- Patent number 5,750,950
- Issue date May 12, 1998
- Hitachi, Ltd.
- Tadahiko Nogami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Three-phase combined type circuit breaker
- Patent number 4,417,111
- Issue date Nov 22, 1983
- Hitachi, Ltd.
- Tuneo Kishi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic pressure actuating apparatus for circuit breaker
- Publication number 20030213774
- Publication date Nov 20, 2003
- Hitachi, Ltd.
- Shinji Seto
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL