Koji Nishikawa

Person

Kyoto-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multiphase DC/DC converter with output phases deviated from or alig...
- Patent number 8,324,875
- Issue date Dec 4, 2012
- Rohm Co., Ltd.
- Tomoyuki Miki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Arithmetic processing circuit unit and disc device
- Patent number 7,791,989
- Issue date Sep 7, 2010
- Rohm Co., Ltd.
- Koji Nishikawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Waveform equalizer and information reproducing apparatus therewith
- Patent number 7,535,816
- Issue date May 19, 2009
- Rohm Co., Ltd.
- Koji Nishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal generating circuit and optical pickup device provided therewith
- Patent number 7,406,018
- Issue date Jul 29, 2008
- Rohm Co., Ltd.
- Ayumu Ibusuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Automatic time constant adjustment circuit
- Patent number 7,365,588
- Issue date Apr 29, 2008
- Rohm Co., Ltd.
- Koji Nishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Motor rotation rate detecting circuit and motor driving device
- Patent number 6,998,802
- Issue date Feb 14, 2006
- Rohm Co., Ltd.
- Koji Nishikawa
- G01 - MEASURING TESTING
Information Patent Grant
Motor rotation rate detecting circuit and motor driving device
- Patent number 6,841,959
- Issue date Jan 11, 2005
- Rohm Co., Ltd.
- Koji Nishikawa
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
MULTIPHASE DC/DC CONVERTER
- Publication number 20100109622
- Publication date May 6, 2010
- Rohm Co., Ltd.
- Tomoyuki Miki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Arithmetic Processing Circuit Unit and Disc Device
- Publication number 20090080309
- Publication date Mar 26, 2009
- Rohm Co., Ltd.
- Koji Nishikawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Waveform equalizer and information reproducing apparatus therewith
- Publication number 20070176684
- Publication date Aug 2, 2007
- Koji Nishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Signal generating circuit and optical pickup device provided therewith
- Publication number 20050185525
- Publication date Aug 25, 2005
- ROHM CO., LTD.
- Ayumu Ibusuki
- G11 - INFORMATION STORAGE
Information Patent Application
Automatic time constant adjustment circuit
- Publication number 20050184786
- Publication date Aug 25, 2005
- ROHM CO., LTD.
- Koji Nishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Motor rotation rate detecting circuit and motor driving device
- Publication number 20050077851
- Publication date Apr 14, 2005
- ROHM CO., LTD.
- Koji Nishikawa
- G01 - MEASURING TESTING
Information Patent Application
Motor rotation rate detecting circuit and motor driving device
- Publication number 20040007996
- Publication date Jan 15, 2004
- ROHM CO., LTD.
- Koji Nishikawa
- G01 - MEASURING TESTING

Koji Nishikawa

Person

Patents Grantslast 30 patents

Multiphase DC/DC converter with output phases deviated from or alig...

Arithmetic processing circuit unit and disc device

Waveform equalizer and information reproducing apparatus therewith

Signal generating circuit and optical pickup device provided therewith

Automatic time constant adjustment circuit

Motor rotation rate detecting circuit and motor driving device

Motor rotation rate detecting circuit and motor driving device

Patents Applicationslast 30 patents

MULTIPHASE DC/DC CONVERTER

Arithmetic Processing Circuit Unit and Disc Device

Waveform equalizer and information reproducing apparatus therewith

Signal generating circuit and optical pickup device provided therewith

Automatic time constant adjustment circuit

Motor rotation rate detecting circuit and motor driving device

Motor rotation rate detecting circuit and motor driving device