Akira NAKAMURA

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of controlling a switch circuit, storage status adjusting ci...
- Patent number 10,298,027
- Issue date May 21, 2019
- Ricoh Company, Ltd.
- Masami Takai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery state control circuit, battery state control device, and ba...
- Patent number 9,755,439
- Issue date Sep 5, 2017
- Ricoh Company, Ltd.
- Norifumi Yamamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device and manufacture thereof
- Patent number 6,352,880
- Issue date Mar 5, 2002
- Ricoh Company, Ltd.
- Masami Takai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF CONTROLLING A SWITCH CIRCUIT, STORAGE STATUS ADJUSTING CI...
- Publication number 20170063109
- Publication date Mar 2, 2017
- RICOH COMPANY, LTD.
- Masami TAKAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY STATE CONTROL CIRCUIT, BATTERY STATE CONTROL DEVICE, AND BA...
- Publication number 20150236533
- Publication date Aug 20, 2015
- RICOH COMPANY, LTD.
- Norifumi Yamamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY STATE CONTROL CIRCUIT, BATTERY STATE CONTROL APPARATUS, AND...
- Publication number 20150140374
- Publication date May 21, 2015
- RICOH COMPANY, LTD.
- Norifumi Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS