Eitaro Oyama

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Kyoto-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Step-up switching regulator with soft start circuits
- Patent number 7,755,340
- Issue date Jul 13, 2010
- Rohm Co., Ltd.
- Shinya Karasawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply unit and controller IC thereof
- Patent number 6,954,056
- Issue date Oct 11, 2005
- Rohm Co., Ltd.
- Taichi Hoshino
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply unit
- Patent number 6,919,713
- Issue date Jul 19, 2005
- Rohm Co., Ltd.
- Taichi Hoshino
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage drop DC-DC converter
- Patent number 6,538,907
- Issue date Mar 25, 2003
- Rohm Co., Ltd.
- Taichi Hoshino
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor amplifier circuit
- Patent number 6,275,095
- Issue date Aug 14, 2001
- Rohm Co., Ltd.
- Taichi Hoshino
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
STEP-UP SWITCHING REGULATOR AND ITS CONTROL CIRCUIT AND ELECTRONIC...
- Publication number 20090146633
- Publication date Jun 11, 2009
- Rohm Co., Ltd.
- Shinya Karasawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switching power supply unit and controller IC thereof
- Publication number 20040113600
- Publication date Jun 17, 2004
- ROHM CO., LTD.
- Taichi Hoshino
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Switching power supply unit
- Publication number 20040070376
- Publication date Apr 15, 2004
- ROHM CO., LTD.
- Taichi Hoshino
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Voltage drop DC-DC converter
- Publication number 20020051372
- Publication date May 2, 2002
- Taichi Hoshino
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER