Atsushi Kitagawa

Person

Kyoto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Switching circuit
- Patent number 10,483,966
- Issue date Nov 19, 2019
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Takahiro Uehara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switching circuit
- Patent number 10,205,449
- Issue date Feb 12, 2019
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Takahiro Uehara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
DC-DC converter with a switching transistor arranged in an area whe...
- Patent number 10,033,275
- Issue date Jul 24, 2018
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Takuya Ishii
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device and power supply unit utilizing the same
- Patent number 9,812,964
- Issue date Nov 7, 2017
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device and power supply unit utilizing the same
- Patent number 9,391,038
- Issue date Jul 12, 2016
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device and power supply unit utilizing the same
- Patent number 8,872,577
- Issue date Oct 28, 2014
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and power supply unit utilizing the same
- Patent number 8,704,357
- Issue date Apr 22, 2014
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driving circuit for light emitting elements
- Patent number 8,305,011
- Issue date Nov 6, 2012
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Semiconductor device and power supply unit utilizing the same
- Patent number 8,063,494
- Issue date Nov 22, 2011
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM power supply apparatus having a controlled duty ratio without c...
- Patent number 7,893,667
- Issue date Feb 22, 2011
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Soft start circuit, power supply unit and electric equipment
- Patent number 7,586,297
- Issue date Sep 8, 2009
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor integrated circuit including charge pump and electron...
- Patent number 7,518,892
- Issue date Apr 14, 2009
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Soft start circuit, power supply unit and electric equipment
- Patent number 7,405,549
- Issue date Jul 29, 2008
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor integrated circuit having current detection functiona...
- Patent number 7,277,264
- Issue date Oct 2, 2007
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Overcurrent protection circuit
- Patent number 7,218,496
- Issue date May 15, 2007
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Light emitting element driving device and portable apparatus equipp...
- Patent number 7,157,866
- Issue date Jan 2, 2007
- Rohm Co., Ltd.
- Kunihiro Komiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
SWITCHING CIRCUIT
- Publication number 20190149148
- Publication date May 16, 2019
- Panasonic Intellectual Property Management Co., Ltd.
- Takahiro UEHARA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SWITCHING CIRCUIT
- Publication number 20180212509
- Publication date Jul 26, 2018
- Panasonic Intellectual Property Management Co., Ltd.
- Takahiro UEHARA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SEMICONDUCTOR DEVICE AND POWER SUPPLY UNIT UTILIZING THE SAME
- Publication number 20160294288
- Publication date Oct 6, 2016
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC CONVERTER MODULE
- Publication number 20160164417
- Publication date Jun 9, 2016
- Panasonic Intellectual Property Management Co., Ltd.
- Takuya ISHII
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SEMICONDUCTOR DEVICE AND POWER SUPPLY UNIT UTILIZING THE SAME
- Publication number 20150021768
- Publication date Jan 22, 2015
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor Device and Power Supply Unit Utilizing the Same
- Publication number 20140175648
- Publication date Jun 26, 2014
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Semiconductor Device and Power Supply Unit Utilizing the Same
- Publication number 20120032713
- Publication date Feb 9, 2012
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DRIVING CIRCUIT FOR LIGHT EMITTING ELEMENT, AND ELECTRONIC DEVICE
- Publication number 20100194294
- Publication date Aug 5, 2010
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER SUPPLY APPARATUS AND ELECTRICAL DEVICE THEREWITH
- Publication number 20090284237
- Publication date Nov 19, 2009
- Atsushi Kitagawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SOFT START CIRCUIT, POWER SUPPY UNIT AND ELECTRIC EQUIPMENT
- Publication number 20080258698
- Publication date Oct 23, 2008
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Semiconductor Integrated Circuit Including Charge Pump and Electron...
- Publication number 20080031023
- Publication date Feb 7, 2008
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY UNIT AND PORTABLE DEVICE
- Publication number 20070216379
- Publication date Sep 20, 2007
- Rohm Co., Ltd.
- Atsushi Kitagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SOFT START CIRCUIT, POWER SUPPLY UNIT AND ELECTRIC EQUIPMENT
- Publication number 20070030709
- Publication date Feb 8, 2007
- Rohm Co., Ltd.
- Atsushi KITAGAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Semiconductor device and power supply unit utilizing the same
- Publication number 20060017067
- Publication date Jan 26, 2006
- ROHM CO., LTD.
- Atsushi Kitagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor integrated circuit having current detection functiona...
- Publication number 20050213275
- Publication date Sep 29, 2005
- ROHM CO., LTD.
- Atsushi Kitagawa
- G01 - MEASURING TESTING
Information Patent Application
Light emitting element driving device and portable apparatus equipp...
- Publication number 20050200312
- Publication date Sep 15, 2005
- ROHM CO., LTD.
- Kunihiro Komiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Atsushi Kitagawa

Person

Patents Grantslast 30 patents

Switching circuit

Switching circuit

DC-DC converter with a switching transistor arranged in an area whe...

Semiconductor device and power supply unit utilizing the same

Semiconductor device and power supply unit utilizing the same

Semiconductor device and power supply unit utilizing the same

Semiconductor device and power supply unit utilizing the same

Driving circuit for light emitting elements

Semiconductor device and power supply unit utilizing the same

PWM power supply apparatus having a controlled duty ratio without c...

Soft start circuit, power supply unit and electric equipment

Semiconductor integrated circuit including charge pump and electron...

Soft start circuit, power supply unit and electric equipment

Semiconductor integrated circuit having current detection functiona...

Overcurrent protection circuit

Light emitting element driving device and portable apparatus equipp...

Patents Applicationslast 30 patents

SWITCHING CIRCUIT

SWITCHING CIRCUIT

SEMICONDUCTOR DEVICE AND POWER SUPPLY UNIT UTILIZING THE SAME

DC-DC CONVERTER MODULE

SEMICONDUCTOR DEVICE AND POWER SUPPLY UNIT UTILIZING THE SAME

Semiconductor Device and Power Supply Unit Utilizing the Same

Semiconductor Device and Power Supply Unit Utilizing the Same

DRIVING CIRCUIT FOR LIGHT EMITTING ELEMENT, AND ELECTRONIC DEVICE

POWER SUPPLY APPARATUS AND ELECTRICAL DEVICE THEREWITH

SOFT START CIRCUIT, POWER SUPPY UNIT AND ELECTRIC EQUIPMENT

Semiconductor Integrated Circuit Including Charge Pump and Electron...

POWER SUPPLY UNIT AND PORTABLE DEVICE

SOFT START CIRCUIT, POWER SUPPLY UNIT AND ELECTRIC EQUIPMENT

Semiconductor device and power supply unit utilizing the same

Semiconductor integrated circuit having current detection functiona...

Light emitting element driving device and portable apparatus equipp...