Koji Sonobe

Person

Matsumoto-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Controller of switching power supply apparatus
- Patent number 11,411,498
- Issue date Aug 9, 2022
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply control circuit with bottom point detection
- Patent number 11,005,373
- Issue date May 11, 2021
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LED drive circuit
- Patent number 10,512,137
- Issue date Dec 17, 2019
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Switching power supply device
- Patent number 10,277,134
- Issue date Apr 30, 2019
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Quasi-resonant switching power supply
- Patent number 9,627,977
- Issue date Apr 18, 2017
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Junction field effect transistor, integrated circuit for switching...
- Patent number 9,461,115
- Issue date Oct 4, 2016
- Fuji Electric Co., Ltd.
- Masaru Saito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power source device
- Patent number 8,879,281
- Issue date Nov 4, 2014
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power source device and switching power source control ci...
- Patent number 8,411,469
- Issue date Apr 2, 2013
- Fuji Electric Co., Ltd.
- Jian Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Junction field effect transistor, integrated circuit for switching...
- Patent number 8,283,705
- Issue date Oct 9, 2012
- Fuji Electric Co., Ltd.
- Masaru Saito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply device and switching power supply control ci...
- Patent number 8,243,473
- Issue date Aug 14, 2012
- Fuji Electric Co., Ltd.
- Jian Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply control circuit
- Patent number 8,098,501
- Issue date Jan 17, 2012
- Fuji Electric Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Junction field effect transistor, integrated circuit for switching...
- Patent number 7,982,248
- Issue date Jul 19, 2011
- Fuji Electric Systems Co., Ltd.
- Masaru Saito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device for switching power supply control, startup ci...
- Patent number 7,948,780
- Issue date May 24, 2011
- Fuji Electric Systems Co., Ltd.
- Koji Sonobe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power source device, switching power source control circu...
- Patent number 7,859,860
- Issue date Dec 28, 2010
- Fuji Electric Systems Co., Ltd.
- Jian Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
CONTROLLER OF SWITCHING POWER SUPPLY APPARATUS
- Publication number 20200358360
- Publication date Nov 12, 2020
- Fuji Electric Co., Ltd.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING POWER SUPPLY CONTROL CIRCUIT AND SWITCHING POWER SUPPLY A...
- Publication number 20190068064
- Publication date Feb 28, 2019
- Fuji Electric Co., Ltd.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING POWER SUPPLY DEVICE
- Publication number 20170222565
- Publication date Aug 3, 2017
- Fuji Electric Co., Ltd.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
QUASI-RESONANT SWITCHING POWER SUPPLY
- Publication number 20140177286
- Publication date Jun 26, 2014
- Fuji Electric Co., Ltd.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING POWER SOURCE DEVICE
- Publication number 20140078787
- Publication date Mar 20, 2014
- Fuji Electric Co., Ltd.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LED DRIVE CIRCUIT
- Publication number 20140062333
- Publication date Mar 6, 2014
- Fuji Electric Co., Ltd.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
JUNCTION FIELD EFFECT TRANSISTOR, INTEGRATED CIRCUIT FOR SWITCHING...
- Publication number 20120319177
- Publication date Dec 20, 2012
- Fuji Electric Co., Ltd.
- Masaru SAITO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
JUNCTION FIELD EFFECT TRANSISTOR, INTEGRATED CIRCUIT FOR SWITCHING...
- Publication number 20110228575
- Publication date Sep 22, 2011
- Fuji Electric Systems Co., Ltd.
- Masaru SAITO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SWITCHING POWER SUPPLY DEVICE AND SWITCHING POWER SUPPLY CONTROL CI...
- Publication number 20100172157
- Publication date Jul 8, 2010
- Fuji Electric Systems Co., Ltd.
- Jian CHEN
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switching power source device and switching power source control ci...
- Publication number 20100142229
- Publication date Jun 10, 2010
- Fuji Electric Systems Co., Ltd.
- Jian Chen
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SWITCHING POWER SUPPLY CONTROL CIRCUIT
- Publication number 20100135050
- Publication date Jun 3, 2010
- Fuji Electric Systems Co., Ltd.
- Koji SONOBE
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switching power source device, switching power source control circu...
- Publication number 20100067262
- Publication date Mar 18, 2010
- Fuji Electric Device Technology Co., LTD.
- Jian Chen
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SEMICONDUCTOR DEVICE FOR SWITCHING POWER SUPPLY CONTROL, STARTUP CI...
- Publication number 20090237965
- Publication date Sep 24, 2009
- Fuji Electric Device Technology Co., LTD.
- Koji SONOBE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
JUNCTION FIELD EFFECT TRANSISTOR, INTEGRATED CIRCUIT FOR SWITCHING...
- Publication number 20070221963
- Publication date Sep 27, 2007
- Fuji Electric Device Technology Co., LTD.
- Masaru SAITO
- H01 - BASIC ELECTRIC ELEMENTS

Koji Sonobe

Person

Patents Grantslast 30 patents

Controller of switching power supply apparatus

Switching power supply control circuit with bottom point detection

LED drive circuit

Switching power supply device

Quasi-resonant switching power supply

Junction field effect transistor, integrated circuit for switching...

Switching power source device

Switching power source device and switching power source control ci...

Junction field effect transistor, integrated circuit for switching...

Switching power supply device and switching power supply control ci...

Switching power supply control circuit

Junction field effect transistor, integrated circuit for switching...

Semiconductor device for switching power supply control, startup ci...

Switching power source device, switching power source control circu...

Patents Applicationslast 30 patents

CONTROLLER OF SWITCHING POWER SUPPLY APPARATUS

SWITCHING POWER SUPPLY CONTROL CIRCUIT AND SWITCHING POWER SUPPLY A...

SWITCHING POWER SUPPLY DEVICE

QUASI-RESONANT SWITCHING POWER SUPPLY

SWITCHING POWER SOURCE DEVICE

LED DRIVE CIRCUIT

JUNCTION FIELD EFFECT TRANSISTOR, INTEGRATED CIRCUIT FOR SWITCHING...

JUNCTION FIELD EFFECT TRANSISTOR, INTEGRATED CIRCUIT FOR SWITCHING...

SWITCHING POWER SUPPLY DEVICE AND SWITCHING POWER SUPPLY CONTROL CI...

Switching power source device and switching power source control ci...

SWITCHING POWER SUPPLY CONTROL CIRCUIT

Switching power source device, switching power source control circu...

SEMICONDUCTOR DEVICE FOR SWITCHING POWER SUPPLY CONTROL, STARTUP CI...

JUNCTION FIELD EFFECT TRANSISTOR, INTEGRATED CIRCUIT FOR SWITCHING...