Kohji Yoshii

Person

Mita-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Constant voltage circuit
- Patent number 8,446,215
- Issue date May 21, 2013
- Ricoh Company, Ltd.
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Grant
Constant voltage circuit
- Patent number 8,253,404
- Issue date Aug 28, 2012
- Ricoh Company, Ltd.
- Kohji Yoshii
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Constant voltage circuit using plural error amplifiers to improve r...
- Patent number 7,948,223
- Issue date May 24, 2011
- Ricoh Company, Ltd.
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power supply IC having switching regulator and series regulator
- Patent number 7,856,253
- Issue date Dec 21, 2010
- Ricoh Company, Ltd.
- Hideki Agari
- G05 - CONTROLLING REGULATING
Information Patent Grant
Switching regulator
- Patent number 7,831,851
- Issue date Nov 9, 2010
- Ricoh Company, Ltd.
- Kohji Yoshii
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter circuit
- Patent number 7,755,395
- Issue date Jul 13, 2010
- Ricoh Company, Ltd.
- Kohji Yoshii
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor apparatus
- Patent number 7,709,899
- Issue date May 4, 2010
- Ricoh Company, Ltd.
- Hideki Agari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transistor drive circuit, constant voltage circuit, and method ther...
- Patent number 7,541,787
- Issue date Jun 2, 2009
- Ricoh Company, Ltd.
- Katsuhiro Hayashi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Voltage regulator with plural error amplifiers
- Patent number 7,368,896
- Issue date May 6, 2008
- Ricoh Company, Ltd.
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Grant
Constant voltage circuit
- Patent number 7,215,180
- Issue date May 8, 2007
- Ricoh Company, Ltd.
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power supply IC having switching regulator and series regulator
- Patent number 7,209,770
- Issue date Apr 24, 2007
- Ricoh Company, Ltd.
- Hideki Agari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supplying methods and apparatus that provide stable output vo...
- Patent number 7,148,665
- Issue date Dec 12, 2006
- Ricoh Company, Ltd.
- Hideki Agari
- G05 - CONTROLLING REGULATING
Information Patent Grant
Constant voltage power supply with normal and standby modes
- Patent number RE39374
- Issue date Nov 7, 2006
- Ricoh Company, Ltd.
- Shinya Manabe
- 323 - Electricity: power supply or regulation systems
Information Patent Grant
Voltage regulator using two operational amplifiers in current consu...
- Patent number 7,002,329
- Issue date Feb 21, 2006
- Ricoh Company, Ltd.
- Hideki Agari
- G05 - CONTROLLING REGULATING
Information Patent Grant
Constant voltage power supply with normal and standby modes
- Patent number 6,236,194
- Issue date May 22, 2001
- Ricoh Company, Ltd.
- Shinya Manabe
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
CONSTANT VOLTAGE CIRCUIT
- Publication number 20100320993
- Publication date Dec 23, 2010
- RICOH COMPANY, LTD.
- Kohji Yoshii
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
INVERTER CIRCUIT
- Publication number 20100013519
- Publication date Jan 21, 2010
- RICOH COMPANY, LTD.
- Kohji YOSHII
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CONSTANT VOLTAGE CIRCUIT
- Publication number 20080238385
- Publication date Oct 2, 2008
- Ricoh Company, Ltd.
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Application
Semiconductor Device and Voltage Regulator Using the Semiconductor...
- Publication number 20080197829
- Publication date Aug 21, 2008
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Application
Semiconductor apparatus
- Publication number 20070187763
- Publication date Aug 16, 2007
- Hideki Agari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power supply IC having switching regulator and series regulator
- Publication number 20070155444
- Publication date Jul 5, 2007
- Hideki Agari
- G05 - CONTROLLING REGULATING
Information Patent Application
Switching regulator
- Publication number 20070114986
- Publication date May 24, 2007
- Kohji Yoshii
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Constant voltage circuit
- Publication number 20070115045
- Publication date May 24, 2007
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Application
Transistor drive circuit, constant voltage circuit, and method ther...
- Publication number 20070069819
- Publication date Mar 29, 2007
- Katsuhiro Hayashi
- G05 - CONTROLLING REGULATING
Information Patent Application
Constant voltage circuit
- Publication number 20050231180
- Publication date Oct 20, 2005
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Application
Constant voltage circuit
- Publication number 20050036246
- Publication date Feb 17, 2005
- Toshihisa Nagata
- G05 - CONTROLLING REGULATING
Information Patent Application
Power supplying methods and apparatus that provide stable output vo...
- Publication number 20040174149
- Publication date Sep 9, 2004
- Hideki Agari
- G05 - CONTROLLING REGULATING
Information Patent Application
Power supply IC having switching regulator and series regulator
- Publication number 20040135626
- Publication date Jul 15, 2004
- Hideki Agari
- G05 - CONTROLLING REGULATING
Information Patent Application
Voltage regulator
- Publication number 20040130305
- Publication date Jul 8, 2004
- Hideki Agari
- G05 - CONTROLLING REGULATING

Kohji Yoshii

Person

Patents Grantslast 30 patents

Constant voltage circuit

Constant voltage circuit

Constant voltage circuit using plural error amplifiers to improve r...

Power supply IC having switching regulator and series regulator

Switching regulator

Inverter circuit

Semiconductor apparatus

Transistor drive circuit, constant voltage circuit, and method ther...

Voltage regulator with plural error amplifiers

Constant voltage circuit

Power supply IC having switching regulator and series regulator

Power supplying methods and apparatus that provide stable output vo...

Constant voltage power supply with normal and standby modes

Voltage regulator using two operational amplifiers in current consu...

Constant voltage power supply with normal and standby modes

Patents Applicationslast 30 patents

CONSTANT VOLTAGE CIRCUIT

INVERTER CIRCUIT

CONSTANT VOLTAGE CIRCUIT

Semiconductor Device and Voltage Regulator Using the Semiconductor...

Semiconductor apparatus

Power supply IC having switching regulator and series regulator

Switching regulator

Constant voltage circuit

Transistor drive circuit, constant voltage circuit, and method ther...

Constant voltage circuit

Constant voltage circuit

Power supplying methods and apparatus that provide stable output vo...

Power supply IC having switching regulator and series regulator

Voltage regulator