Hirofumi Yamaguchi

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Numazu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Battery-charging device
- Patent number 11,476,697
- Issue date Oct 18, 2022
- MAHLE ELECTRIC DRIVES JAPAN CORPORATION
- Hirofumi Yamaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power source device
- Patent number 8,736,233
- Issue date May 27, 2014
- Kokusan Denki Co., Ltd.
- Shuichi Muramatsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device
- Patent number 7,741,708
- Issue date Jun 22, 2010
- Kokusan Denki Co., Ltd.
- Shuichi Muramatsu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery charging control device
- Patent number 7,466,108
- Issue date Dec 16, 2008
- Kokusan Denki Co., Ltd.
- Hidetoshi Suzuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
BATTERY-CHARGING DEVICE
- Publication number 20200366123
- Publication date Nov 19, 2020
- MAHLE ELECTRIC DRIVES JAPAN CORPORATION
- HIROFUMI YAMAGUCHI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SOURCE DEVICE
- Publication number 20130051097
- Publication date Feb 28, 2013
- Kokusan Denki Co., Ltd.
- Nozomu Katsumata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY CHARGING APPARATUS
- Publication number 20100026246
- Publication date Feb 4, 2010
- Kokusan Denki Co., Ltd.
- Hirofumi Yamaguchi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Semiconductor Device
- Publication number 20080290477
- Publication date Nov 27, 2008
- Kokusan Denki Co., Ltd.
- Shuichi Muramatsu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Battery charging control device
- Publication number 20070164713
- Publication date Jul 19, 2007
- Kokusan Denki Co., Ltd.
- Hidetoshi Suzuki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...