Hiromi Koga

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum interrupter
- Patent number 7,173,208
- Issue date Feb 6, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Takakazu Harada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas-insulated switchgear
- Patent number 6,529,368
- Issue date Mar 4, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Hiromi Koga
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Vacuum switch including windmill-shaped electrodes
- Patent number 6,479,778
- Issue date Nov 12, 2002
- Mitsubishi Denki Kabushiki Kaisha
- Toshinori Kimura
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
VACUUM INTERRUPTER
- Publication number 20230260725
- Publication date Aug 17, 2023
- Mitsubishi Electric Corporation
- Naoya AIHARA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Vacuum interrupter
- Publication number 20060124600
- Publication date Jun 15, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Takakazu Harada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Gas-insulated switchgear
- Publication number 20020054474
- Publication date May 9, 2002
- Mitsubishi Denki Kabushiki Kaisha
- Hiromi Koga
- H01 - BASIC ELECTRIC ELEMENTS