Yu Yonezawa

Person

Sagamihara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Power-supply apparatus and power-supply method
- Patent number 11,264,892
- Issue date Mar 1, 2022
- Fujitsu Limited
- Hiroshi Nakao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrolytic system, electrolytic control circuit, and control meth...
- Patent number 11,028,492
- Issue date Jun 8, 2021
- Fujitsu Limited
- Yu Yonezawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Power supply and control method for power supply
- Patent number 10,797,595
- Issue date Oct 6, 2020
- FDK Corporation
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Capacitor life diagnosis apparatus and capacitor life diagnosis method
- Patent number 10,627,455
- Issue date Apr 21, 2020
- Fujitsu Limited
- Hiroshi Nakao
- G01 - MEASURING TESTING
Information Patent Grant
Capacitor life diagnosis device, capacitor life diagnosis method, a...
- Patent number 10,345,360
- Issue date Jul 9, 2019
- Fujitsu Limited
- Hiroshi Nakao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device, control circuit for power supply device, and c...
- Patent number 10,014,770
- Issue date Jul 3, 2018
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device and method for controlling power supply circuit
- Patent number 10,008,940
- Issue date Jun 26, 2018
- Fujitsu Limited
- Takahiko Sugawara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply apparatus and error detecting method for power supply...
- Patent number 9,960,695
- Issue date May 1, 2018
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control method for switching power supply circuit and power supply...
- Patent number 9,893,629
- Issue date Feb 13, 2018
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Double-ended forward converter and power supply device
- Patent number 9,887,635
- Issue date Feb 6, 2018
- Fujitsu Limited
- Yu Yonezawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Inductor apparatus and inductor apparatus manufacturing method
- Patent number 9,837,208
- Issue date Dec 5, 2017
- Fujitsu Limited
- Hiroshi Nakao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Control device, DC-DC converter, switching power supply apparatus,...
- Patent number 9,800,145
- Issue date Oct 24, 2017
- Fujitsu Limited
- Tomotake Sasaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device
- Patent number 9,762,232
- Issue date Sep 12, 2017
- Fujitsu Limited
- Yu Yonezawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multiphase power circuit
- Patent number 9,742,284
- Issue date Aug 22, 2017
- Fujitsu Limited
- Hisato Hosoyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply apparatus
- Patent number 9,590,512
- Issue date Mar 7, 2017
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Synchronous rectification converter and control method of synchrono...
- Patent number 9,559,593
- Issue date Jan 31, 2017
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device and control method of power supply device
- Patent number 9,553,521
- Issue date Jan 24, 2017
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Planar type transformer and switching power supply circuit
- Patent number 9,472,333
- Issue date Oct 18, 2016
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply apparatus
- Patent number 9,461,542
- Issue date Oct 4, 2016
- Fujitsu Limited
- Kazunori Hayami
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter with LC resonance circuit and transformer
- Patent number 9,444,350
- Issue date Sep 13, 2016
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control device, control method, and power supply device
- Patent number 9,438,107
- Issue date Sep 6, 2016
- Fujitsu Limited
- Tomotake Sasaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power circuit
- Patent number 9,318,972
- Issue date Apr 19, 2016
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Insulation-type power factor correction circuit
- Patent number 9,166,480
- Issue date Oct 20, 2015
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit and electronic apparatus using the same
- Patent number 8,901,906
- Issue date Dec 2, 2014
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device
- Patent number 8,773,103
- Issue date Jul 8, 2014
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device
- Patent number 8,749,210
- Issue date Jun 10, 2014
- Fujitsu Limited
- Hiroshi Nakao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter, power supply unit and an information processing ap...
- Patent number 8,693,222
- Issue date Apr 8, 2014
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply, control circuit for controlling switching p...
- Patent number 8,427,793
- Issue date Apr 23, 2013
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply unit and information processor
- Patent number 8,378,647
- Issue date Feb 19, 2013
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switch circuit with inductive load and capacitor
- Patent number 8,350,415
- Issue date Jan 8, 2013
- Fujitsu Limited
- Noboru Wakatsuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
WATER ELECTROLYSIS SYSTEM AND CURRENT CONTROL APPARATUS
- Publication number 20230034570
- Publication date Feb 2, 2023
- Fujitsu Limited
- Yu Yonezawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
POWER SUPPLY DEVICE AND NON-TRANSITORY COMPUTER-READABLE STORAGE ME...
- Publication number 20210050791
- Publication date Feb 18, 2021
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SIMULATION APPARATUS OF POWER SUPPLY DEVICE
- Publication number 20200184033
- Publication date Jun 11, 2020
- Fujitsu Limited
- Yu Yonezawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POWER SUPPLY AND CONTROL METHOD FOR POWER SUPPLY
- Publication number 20190341848
- Publication date Nov 7, 2019
- FDK CORPORATION
- Yu YONEZAWA
- G05 - CONTROLLING REGULATING
Information Patent Application
ELECTROLYTIC SYSTEM, ELECTROLYTIC CONTROL CIRCUIT, AND CONTROL METH...
- Publication number 20190127867
- Publication date May 2, 2019
- Fujitsu Limited
- Yu Yonezawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
POWER-SUPPLY APPARATUS AND POWER-SUPPLY METHOD
- Publication number 20190097525
- Publication date Mar 28, 2019
- Fujitsu Limited
- Hiroshi NAKAO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
RAPID CONTROL PROTOTYPING SYSTEM
- Publication number 20180329394
- Publication date Nov 15, 2018
- Fujitsu Limited
- Atsushi Manabe
- B33 - ADDITIVE MANUFACTURING TECHNOLOGY
Information Patent Application
POWER SUPPLY DEVICE, CONTROL CIRCUIT FOR POWER SUPPLY DEVICE, AND C...
- Publication number 20180166988
- Publication date Jun 14, 2018
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INDUCTOR APPARATUS AND INDUCTOR APPARATUS MANUFACTURING METHOD
- Publication number 20180068787
- Publication date Mar 8, 2018
- Fujitsu Limited
- Hiroshi NAKAO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER SUPPLY APPARATUS AND ELECTRONIC DEVICE
- Publication number 20170366094
- Publication date Dec 21, 2017
- Fujitsu Limited
- Takahiko SUGAWARA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CAPACITOR LIFE DIAGNOSIS APPARATUS AND CAPACITOR LIFE DIAGNOSIS METHOD
- Publication number 20170292984
- Publication date Oct 12, 2017
- Fujitsu Limited
- Hiroshi Nakao
- G01 - MEASURING TESTING
Information Patent Application
POWER SUPPLY APPARATUS AND ERROR DETECTING METHOD FOR POWER SUPPLY...
- Publication number 20170201184
- Publication date Jul 13, 2017
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING POWER SUPPLY CIRCUIT
- Publication number 20170126135
- Publication date May 4, 2017
- Fujitsu Limited
- Takahiko SUGAWARA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL METHOD FOR SWITCHING POWER SUPPLY CIRCUIT AND POWER SUPPLY...
- Publication number 20170099003
- Publication date Apr 6, 2017
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CIRCUIT
- Publication number 20160105114
- Publication date Apr 14, 2016
- Fujitsu Limited
- Hisato HOSOYAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
RCP SYSTEM FOR CONTROLLING POWER SUPPLY APPARATUS
- Publication number 20160087555
- Publication date Mar 24, 2016
- FUJITSU LIMITED
- Hisato HOSOYAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DOUBLE-ENDED FORWARD CONVERTER AND POWER SUPPLY DEVICE
- Publication number 20150381065
- Publication date Dec 31, 2015
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL DEVICE, DC-DC CONVERTER, SWITCHING POWER SUPPLY APPARATUS,...
- Publication number 20150346788
- Publication date Dec 3, 2015
- Fujitsu Limited
- Tomotake Sasaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PLANAR TYPE TRANSFORMER AND SWITCHING POWER SUPPLY CIRCUIT
- Publication number 20150302972
- Publication date Oct 22, 2015
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CIRCUIT
- Publication number 20150256101
- Publication date Sep 10, 2015
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SYNCHRONOUS RECTIFICATION CONVERTER AND CONTROL METHOD OF SYNCHRONO...
- Publication number 20150236590
- Publication date Aug 20, 2015
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INDUCTOR APPARATUS AND INDUCTOR APPARATUS MANUFACTURING METHOD
- Publication number 20150200050
- Publication date Jul 16, 2015
- Fujitsu Limited
- Hiroshi NAKAO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20150188534
- Publication date Jul 2, 2015
- Fujitsu Limited
- Yu YONEZAWA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
POWER SUPPLY DEVICE AND CONTROL METHOD OF POWER SUPPLY DEVICE
- Publication number 20150155792
- Publication date Jun 4, 2015
- Fujitsu Limited
- Yu YONEZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY APPARATUS
- Publication number 20150138851
- Publication date May 21, 2015
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY APPARATUS
- Publication number 20150084607
- Publication date Mar 26, 2015
- Fujitsu Limited
- Kazunori Hayami
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL DEVICE, CONTROL METHOD, AND POWER SUPPLY DEVICE
- Publication number 20140232365
- Publication date Aug 21, 2014
- Fujitsu Limited
- Tomotake SASAKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY DEVICE
- Publication number 20140169051
- Publication date Jun 19, 2014
- Fujitsu Limited
- Hiroshi NAKAO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC CONVERTER WITH LC RESONANCE CIRCUIT
- Publication number 20140153288
- Publication date Jun 5, 2014
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER FACTOR CORRECTION CIRCUIT
- Publication number 20130322129
- Publication date Dec 5, 2013
- Fujitsu Limited
- Yu Yonezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Yu Yonezawa

Person

Patents Grantslast 30 patents

Power-supply apparatus and power-supply method

Electrolytic system, electrolytic control circuit, and control meth...

Power supply and control method for power supply

Capacitor life diagnosis apparatus and capacitor life diagnosis method

Capacitor life diagnosis device, capacitor life diagnosis method, a...

Power supply device, control circuit for power supply device, and c...

Power supply device and method for controlling power supply circuit

Power supply apparatus and error detecting method for power supply...

Control method for switching power supply circuit and power supply...

Double-ended forward converter and power supply device

Inductor apparatus and inductor apparatus manufacturing method

Control device, DC-DC converter, switching power supply apparatus,...

Semiconductor device

Multiphase power circuit

Power supply apparatus

Synchronous rectification converter and control method of synchrono...

Power supply device and control method of power supply device

Planar type transformer and switching power supply circuit

Power supply apparatus

DC-DC converter with LC resonance circuit and transformer

Control device, control method, and power supply device

Power circuit

Insulation-type power factor correction circuit

Control circuit and electronic apparatus using the same

Power supply device

Power supply device

DC-DC converter, power supply unit and an information processing ap...

Switching power supply, control circuit for controlling switching p...

Power supply unit and information processor

Switch circuit with inductive load and capacitor

Patents Applicationslast 30 patents

WATER ELECTROLYSIS SYSTEM AND CURRENT CONTROL APPARATUS

POWER SUPPLY DEVICE AND NON-TRANSITORY COMPUTER-READABLE STORAGE ME...

SIMULATION APPARATUS OF POWER SUPPLY DEVICE

POWER SUPPLY AND CONTROL METHOD FOR POWER SUPPLY

ELECTROLYTIC SYSTEM, ELECTROLYTIC CONTROL CIRCUIT, AND CONTROL METH...

POWER-SUPPLY APPARATUS AND POWER-SUPPLY METHOD

RAPID CONTROL PROTOTYPING SYSTEM

POWER SUPPLY DEVICE, CONTROL CIRCUIT FOR POWER SUPPLY DEVICE, AND C...

INDUCTOR APPARATUS AND INDUCTOR APPARATUS MANUFACTURING METHOD

POWER SUPPLY APPARATUS AND ELECTRONIC DEVICE

CAPACITOR LIFE DIAGNOSIS APPARATUS AND CAPACITOR LIFE DIAGNOSIS METHOD

POWER SUPPLY APPARATUS AND ERROR DETECTING METHOD FOR POWER SUPPLY...

POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING POWER SUPPLY CIRCUIT

CONTROL METHOD FOR SWITCHING POWER SUPPLY CIRCUIT AND POWER SUPPLY...

POWER CIRCUIT

RCP SYSTEM FOR CONTROLLING POWER SUPPLY APPARATUS

DOUBLE-ENDED FORWARD CONVERTER AND POWER SUPPLY DEVICE

CONTROL DEVICE, DC-DC CONVERTER, SWITCHING POWER SUPPLY APPARATUS,...

PLANAR TYPE TRANSFORMER AND SWITCHING POWER SUPPLY CIRCUIT

POWER CIRCUIT

SYNCHRONOUS RECTIFICATION CONVERTER AND CONTROL METHOD OF SYNCHRONO...

INDUCTOR APPARATUS AND INDUCTOR APPARATUS MANUFACTURING METHOD

SEMICONDUCTOR DEVICE

POWER SUPPLY DEVICE AND CONTROL METHOD OF POWER SUPPLY DEVICE

POWER SUPPLY APPARATUS

POWER SUPPLY APPARATUS

CONTROL DEVICE, CONTROL METHOD, AND POWER SUPPLY DEVICE

POWER SUPPLY DEVICE

DC-DC CONVERTER WITH LC RESONANCE CIRCUIT

POWER FACTOR CORRECTION CIRCUIT