Hidekiyo Ozawa

Person

Kawasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Control circuit of power supply unit, power supply unit and control...
- Patent number 8,368,373
- Issue date Feb 5, 2013
- Fujitsu Semiconductor Limited
- Hidekiyo Ozawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Control system for charging batteries and electronic apparatus usin...
- Patent number RE43911
- Issue date Jan 8, 2013
- Fujitsu Semiconductor Limited
- Kouichi Matsuda
- 320 - Electricity: battery or capacitor charging or discharging
Information Patent Grant
Power supply circuit, power supply control circuit, and power suppl...
- Patent number 7,960,946
- Issue date Jun 14, 2011
- Fujitsu Semiconductor Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter with a plurality of soft-start control circuits
- Patent number 7,957,165
- Issue date Jun 7, 2011
- Fujitsu Semiconductor Limited
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit of synchronous rectification type power supply unit...
- Patent number 7,948,219
- Issue date May 24, 2011
- Fujitsu Semiconductor Limited
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit of power supply unit which controls output power of...
- Patent number 7,944,190
- Issue date May 17, 2011
- Fujitsu Semiconductor Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply circuit for providing semiconductor integrated circuit...
- Patent number 7,928,601
- Issue date Apr 19, 2011
- Fujitsu Semiconductor Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for charging batteries and electronic apparatus usin...
- Patent number RE42114
- Issue date Feb 8, 2011
- Fujitsu Semiconductor Limited
- Kouichi Matsuda
- 320 - Electricity: battery or capacitor charging or discharging
Information Patent Grant
Control circuit of power supply, power supply and control method th...
- Patent number 7,781,909
- Issue date Aug 24, 2010
- Fujitsu Semiconductor Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power source control circuit, power supply device, and control meth...
- Patent number 7,719,136
- Issue date May 18, 2010
- Fujitsu Microelectronics Limited
- Toru Nakamura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter control circuit, DC-DC converter, power supply unit...
- Patent number 7,705,483
- Issue date Apr 27, 2010
- Fujitsu Microelectronics Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charge control that keeps constant input voltage supplied to batter...
- Patent number 7,701,178
- Issue date Apr 20, 2010
- Fujitsu Microelectronics Limited
- Masaya Tsukamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic device incorporating system power supply unit and method...
- Patent number 7,679,214
- Issue date Mar 16, 2010
- Fujitsu Microelectronics Limited
- Toru Nakamura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Control circuit of power supply and control method of the power supply
- Patent number 7,675,267
- Issue date Mar 9, 2010
- Fujitsu Microelectronics Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for controlling DC-DC converter
- Patent number 7,663,345
- Issue date Feb 16, 2010
- Fujitsu Microelectronics Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC linear regulator single controller with plural loads
- Patent number 7,545,054
- Issue date Jun 9, 2009
- Fujitsu Microelectronics Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply control method, current-to-voltage conversion circuit...
- Patent number 7,489,528
- Issue date Feb 10, 2009
- Fujitsu Limited
- Shigeo Tanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter and its control method, and switching regulator and...
- Patent number 7,423,415
- Issue date Sep 9, 2008
- Fujitsu Limited
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Step-up (boost) DC regulator with two-level back-bias switch gate v...
- Patent number 7,298,117
- Issue date Nov 20, 2007
- Fujitsu Limited
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter and method of controlling DC-DC converter
- Patent number 7,279,870
- Issue date Oct 9, 2007
- Fujitsu Limited
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit for DC-DC converter in semiconductor integrated cir...
- Patent number 7,221,131
- Issue date May 22, 2007
- Fujitsu Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter circuit, power supply selection circuit, and appara...
- Patent number 7,148,587
- Issue date Dec 12, 2006
- Fujitsu Limited
- Kouichi Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC to DC converter producing output voltage exhibit rise and fall c...
- Patent number 7,129,682
- Issue date Oct 31, 2006
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-phase DC-DC converter and control circuit for multi-phase DC-...
- Patent number 7,122,995
- Issue date Oct 17, 2006
- Fujitsu Limited
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
A/D converter, D/A converter and voltage source
- Patent number 7,116,258
- Issue date Oct 3, 2006
- Fujitsu Limited
- Kazuyoshi Arimura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
DC-DC converter and method for controlling DC-DC converter
- Patent number 7,098,639
- Issue date Aug 29, 2006
- Fujitsu Limited
- Masahiro Natsume
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
A/D converter, D/A converter and voltage source
- Patent number 7,075,463
- Issue date Jul 11, 2006
- Fujitsu Limited
- Kazuyoshi Arimura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Portable device having a charging circuit and semiconductor device...
- Patent number 7,045,990
- Issue date May 16, 2006
- Fujitsu Limited
- Kyuichi Takimoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC/DC converter
- Patent number 7,019,501
- Issue date Mar 28, 2006
- Fujitsu Limited
- Hirofumi Dogome
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protection method, control circuit, and battery unit
- Patent number 6,989,652
- Issue date Jan 24, 2006
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER SUPPLY CIRCUIT, POWER SUPPLY CONTROL CIRCUIT, AND POWER SUPPL...
- Publication number 20080197814
- Publication date Aug 21, 2008
- Fujitsu Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC CONVERSION CIRCUIT, DC-DC CONVERSION CONTROL CIRCUIT, AND DC-...
- Publication number 20080197821
- Publication date Aug 21, 2008
- FUJITSU LIMITED
- Morihito Hasegawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Control circuit of synchronous rectification type power supply unit...
- Publication number 20080079408
- Publication date Apr 3, 2008
- FUJITSU LIMITED
- Morihito Hasegawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Control circuit of power supply unit, power supply unit and control...
- Publication number 20080052550
- Publication date Feb 28, 2008
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Control circuit of power supply unit, power supply unit and control...
- Publication number 20070242557
- Publication date Oct 18, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- G11 - INFORMATION STORAGE
Information Patent Application
Control circuit of power supply and control method of the power supply
- Publication number 20070229036
- Publication date Oct 4, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Electronic device incorporating system power supply unit and method...
- Publication number 20070226524
- Publication date Sep 27, 2007
- FUJITSU LIMITED
- Toru Nakamura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Circuit and method for controlling DC-DC converter
- Publication number 20070216378
- Publication date Sep 20, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Control circuit of power supply, power supply and control method th...
- Publication number 20070217108
- Publication date Sep 20, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
DC-DC converter control circuit, DC-DC converter, power supply unit...
- Publication number 20070210649
- Publication date Sep 13, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Power source control circuit, power supply device, and control meth...
- Publication number 20070205662
- Publication date Sep 6, 2007
- FUJITSU LIMITED
- Toru Nakamura
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Control circuit for power supply device, power supply device, and c...
- Publication number 20070201294
- Publication date Aug 30, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- G11 - INFORMATION STORAGE
Information Patent Application
DC-DC converter control circuit, DC-DC converter, and DC-DC convert...
- Publication number 20070194766
- Publication date Aug 23, 2007
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Step-up type DC-DC converter and method for controlling step-up typ...
- Publication number 20070132435
- Publication date Jun 14, 2007
- FUJITSU LIMITED
- Morihito Hasegawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DC-DC converter and method for controlling DC-DC converter
- Publication number 20070090819
- Publication date Apr 26, 2007
- FUJITSU LIMITED
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC converter and its control method, and switching regulator and...
- Publication number 20070052398
- Publication date Mar 8, 2007
- FUJITSU LIMITED
- Morihito Hasegawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
A/D CONVERTER, D/A CONVERTER AND VOLTAGE SOURCE
- Publication number 20060176204
- Publication date Aug 10, 2006
- FUJITSU LIMITED
- Kazuyoshi Arimura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Multi-phase DC-DC converter and control circuit for multi-phase DC-...
- Publication number 20060164050
- Publication date Jul 27, 2006
- FUJITSU LIMITED
- Morihito Hasegawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power supply circuit for providing semiconductor integrated circuit...
- Publication number 20060139828
- Publication date Jun 29, 2006
- FUJITSU LIMITED
- Hidekiyo Ozawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Control circuit for DC-DC converter in semiconductor integrated cir...
- Publication number 20060139820
- Publication date Jun 29, 2006
- FUJITSU LIMITED
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Protection method, control circuit, and battery unit
- Publication number 20060049804
- Publication date Mar 9, 2006
- FUJITSU LIMITED
- Mitsuo Saeki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device, printed-circuit board and electronics device
- Publication number 20060033537
- Publication date Feb 16, 2006
- FUJITSU LIMITED
- Hidenobu Ito
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Charge control that keeps constant input voltage supplied to batter...
- Publication number 20050275379
- Publication date Dec 15, 2005
- FUJITSU LIMITED
- Masaya Tsukamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC to DC converter producing output voltage exhibit rise and fall c...
- Publication number 20050264270
- Publication date Dec 1, 2005
- FIJITSU LIMITED
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
A/D converter, D/A converter and voltage source
- Publication number 20050258995
- Publication date Nov 24, 2005
- FUJITSU LIMITED
- Kazuyoshi Arimura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DC/DC converter
- Publication number 20050030777
- Publication date Feb 10, 2005
- FUJITSU LIMITED
- Hirofumi Dogome
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Portable device and semiconductor device
- Publication number 20050017676
- Publication date Jan 27, 2005
- FUJITSU LIMITED
- Kyuichi Takimoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC to DC converter producing output voltage exhibit rise and fall c...
- Publication number 20040135559
- Publication date Jul 15, 2004
- FUJITSU LIMITED
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power supply and control circuit that adjusts output power based on...
- Publication number 20040105281
- Publication date Jun 3, 2004
- Shigeaki Nakazawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power supply control method, current-to-voltage conversion circuit...
- Publication number 20040105285
- Publication date Jun 3, 2004
- FUJITSU LIMITED
- Shigeo Tanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Hidekiyo Ozawa

Person

Patents Grantslast 30 patents

Control circuit of power supply unit, power supply unit and control...

Control system for charging batteries and electronic apparatus usin...

Power supply circuit, power supply control circuit, and power suppl...

DC-DC converter with a plurality of soft-start control circuits

Control circuit of synchronous rectification type power supply unit...

Control circuit of power supply unit which controls output power of...

Power supply circuit for providing semiconductor integrated circuit...

Control system for charging batteries and electronic apparatus usin...

Control circuit of power supply, power supply and control method th...

Power source control circuit, power supply device, and control meth...

DC-DC converter control circuit, DC-DC converter, power supply unit...

Charge control that keeps constant input voltage supplied to batter...

Electronic device incorporating system power supply unit and method...

Control circuit of power supply and control method of the power supply

Circuit and method for controlling DC-DC converter

DC linear regulator single controller with plural loads

Power supply control method, current-to-voltage conversion circuit...

DC-DC converter and its control method, and switching regulator and...

Step-up (boost) DC regulator with two-level back-bias switch gate v...

DC-DC converter and method of controlling DC-DC converter

Control circuit for DC-DC converter in semiconductor integrated cir...

DC-DC converter circuit, power supply selection circuit, and appara...

DC to DC converter producing output voltage exhibit rise and fall c...

Multi-phase DC-DC converter and control circuit for multi-phase DC-...

A/D converter, D/A converter and voltage source

DC-DC converter and method for controlling DC-DC converter

A/D converter, D/A converter and voltage source

Portable device having a charging circuit and semiconductor device...

DC/DC converter

Protection method, control circuit, and battery unit

Patents Applicationslast 30 patents

POWER SUPPLY CIRCUIT, POWER SUPPLY CONTROL CIRCUIT, AND POWER SUPPL...

DC-DC CONVERSION CIRCUIT, DC-DC CONVERSION CONTROL CIRCUIT, AND DC-...

Control circuit of synchronous rectification type power supply unit...

Control circuit of power supply unit, power supply unit and control...

Control circuit of power supply unit, power supply unit and control...

Control circuit of power supply and control method of the power supply

Electronic device incorporating system power supply unit and method...

Circuit and method for controlling DC-DC converter

Control circuit of power supply, power supply and control method th...

DC-DC converter control circuit, DC-DC converter, power supply unit...

Power source control circuit, power supply device, and control meth...

Control circuit for power supply device, power supply device, and c...

DC-DC converter control circuit, DC-DC converter, and DC-DC convert...

Step-up type DC-DC converter and method for controlling step-up typ...

DC-DC converter and method for controlling DC-DC converter

DC-DC converter and its control method, and switching regulator and...

A/D CONVERTER, D/A CONVERTER AND VOLTAGE SOURCE

Multi-phase DC-DC converter and control circuit for multi-phase DC-...

Power supply circuit for providing semiconductor integrated circuit...

Control circuit for DC-DC converter in semiconductor integrated cir...

Protection method, control circuit, and battery unit

Semiconductor device, printed-circuit board and electronics device

Charge control that keeps constant input voltage supplied to batter...

DC to DC converter producing output voltage exhibit rise and fall c...

A/D converter, D/A converter and voltage source

DC/DC converter

Portable device and semiconductor device

DC to DC converter producing output voltage exhibit rise and fall c...

Power supply and control circuit that adjusts output power based on...

Power supply control method, current-to-voltage conversion circuit...