Kouichi MATSUDA

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Battery unit, battery system, electronic device, charging control m...
- Patent number 8,405,357
- Issue date Mar 26, 2013
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
DC/DC power supply circuit with a bypass circuit
- Patent number 8,013,587
- Issue date Sep 6, 2011
- Fujitsu Limited
- Mitsuo Saeki
- 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
Switching converter
- Patent number 7,492,135
- Issue date Feb 17, 2009
- Fujitsu Limited
- Mitsuo Saeki
- 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
Power supply control method
- Patent number 6,940,737
- Issue date Sep 6, 2005
- Fujitsu Limited
- Shigeaki Nakazawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Spike control apparatus for DC-DC converter
- Patent number 6,909,619
- Issue date Jun 21, 2005
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
POWER SUPPLY CONTROL DEVICE, POWER SUPPLY CIRCUIT, POWER SUPPLY CON...
- Patent number 6,724,175
- Issue date Apr 20, 2004
- Fujitsu Limited
- Kouichi Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Portable apparatus
- Patent number 6,657,415
- Issue date Dec 2, 2003
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply control circuit that adjusts output power based on var...
- Patent number 6,639,812
- Issue date Oct 28, 2003
- Fujitsu Limited
- Shigeaki Nakazawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter circuit, power supply selection circuit, and apparatus
- Patent number 6,566,766
- Issue date May 20, 2003
- Fujitsu Limited
- Kouichi Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Monitor signal output circuit, battery pack, battery voltage monito...
- Patent number 6,486,635
- Issue date Nov 26, 2002
- Fujitsu Limited
- Kouichi Matsuda
- G01 - MEASURING TESTING
Information Patent Grant
DC-DC converter circuit selecting lowest acceptable input source
- Patent number 6,404,076
- Issue date Jun 11, 2002
- Fujitsu Limited
- Kouichi Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power control unit loading test method
- Patent number 5,781,000
- Issue date Jul 14, 1998
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for charging batteries and electronic apparatus usin...
- Patent number 5,739,667
- Issue date Apr 14, 1998
- Fujitsu Limited
- Kouichi Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Step-down type DC-DC regulator
- Patent number 5,717,318
- Issue date Feb 10, 1998
- Fujitsu Limited
- Kouichi Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power source system of portable information processing system using...
- Patent number 5,563,493
- Issue date Oct 8, 1996
- Fujitsu Limited
- Kouichi Matsuda
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROCESSING DEVICE, CHARGEABLE CABINET AND NON-TRANSITOR...
- Publication number 20200177669
- Publication date Jun 4, 2020
- FUJITSU CLIENT COMPUTING LIMITED
- Hiroyuki Maekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION PROCESSING DEVICE AND COMPUTER-READABLE RECORDING MEDIUM
- Publication number 20160328957
- Publication date Nov 10, 2016
- Fujitsu Limited
- Kouichi MATSUDA
- G08 - SIGNALLING
Information Patent Application
BATTERY UNIT, BATTERY SYSTEM, ELECTRONIC DEVICE, CHARGING CONTROL M...
- Publication number 20100085014
- Publication date Apr 8, 2010
- FUJITSU LIMITED
- Mitsuo SAEKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER SUPPLY CIRCUIT AND ELECTRONIC APPARATUS
- Publication number 20090134861
- Publication date May 28, 2009
- FUJITSU LIMITED
- Mitsuo SAEKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC converter
- Publication number 20060208714
- Publication date Sep 21, 2006
- FUJITSU LIMITED
- Mitsuo Saeki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switching converter
- Publication number 20060208715
- Publication date Sep 21, 2006
- FUJITSU LIMITED
- Mitsuo Saeki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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
DC-DC converter circuit, power supply selection circuit, and appara...
- Publication number 20030168916
- Publication date Sep 11, 2003
- FUJITSU LIMITED
- Kouichi Matsuda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Hand-held information processing apparatus, charging apparatus and...
- Publication number 20020097022
- Publication date Jul 25, 2002
- FUJITSU LIMITED
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC converter circuit, power supply selection circuit, and apparatus
- Publication number 20020093317
- Publication date Jul 18, 2002
- FUJITSU LIMITED
- Kouichi Matsuda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Power supply control circuit, power supply and power supply control...
- Publication number 20020027786
- Publication date Mar 7, 2002
- FUJITSU LIMITED
- Shigeaki Nakazawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SPIKE CONTROL APPARATUS AND METHOL FOR DC-DC CONVERTET
- Publication number 20020001206
- Publication date Jan 3, 2002
- Mitsuo Saeki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Kouichi MATSUDA

Person

Patents Grantslast 30 patents

Battery unit, battery system, electronic device, charging control m...

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

DC/DC power supply circuit with a bypass circuit

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

Switching converter

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

Power supply control method

Spike control apparatus for DC-DC converter

POWER SUPPLY CONTROL DEVICE, POWER SUPPLY CIRCUIT, POWER SUPPLY CON...

Portable apparatus

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

DC-DC converter circuit, power supply selection circuit, and apparatus

Monitor signal output circuit, battery pack, battery voltage monito...

DC-DC converter circuit selecting lowest acceptable input source

Power control unit loading test method

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

Step-down type DC-DC regulator

Power source system of portable information processing system using...

Patents Applicationslast 30 patents

INFORMATION PROCESSING DEVICE, CHARGEABLE CABINET AND NON-TRANSITOR...

INFORMATION PROCESSING DEVICE AND COMPUTER-READABLE RECORDING MEDIUM

BATTERY UNIT, BATTERY SYSTEM, ELECTRONIC DEVICE, CHARGING CONTROL M...

POWER SUPPLY CIRCUIT AND ELECTRONIC APPARATUS

DC-DC converter

Switching converter

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

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

Hand-held information processing apparatus, charging apparatus and...

DC-DC converter circuit, power supply selection circuit, and apparatus

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

SPIKE CONTROL APPARATUS AND METHOL FOR DC-DC CONVERTET