Akira Haraguchi

Person

Kasugai, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Charge/discharge control circuit and secondary battery
- Patent number RE41915
- Issue date Nov 9, 2010
- Fujitsu Semiconductor Limited
- Akira Haraguchi
- 320 - Electricity: battery or capacitor charging or discharging
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
Control circuit for DC/DC converter
- Patent number 7,176,663
- Issue date Feb 13, 2007
- Fujitsu Limited
- Kyuichi Takimoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Constant-voltage power supply circuit
- Patent number 7,092,226
- Issue date Aug 15, 2006
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Differential voltage amplifier circuit
- Patent number 7,084,700
- Issue date Aug 1, 2006
- Fujitsu Limited
- Akira Haraguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
DC/DC converter control circuits and DC/DC converter systems with p...
- Patent number 6,882,133
- Issue date Apr 19, 2005
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-DC converter, duty-ratio setting circuit and electric appliance...
- Patent number 6,696,821
- Issue date Feb 24, 2004
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charge/discharge control circuit and secondary battery
- Patent number 6,396,246
- Issue date May 28, 2002
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charge circuit that performs charge control by comparing a pluralit...
- Patent number 6,373,225
- Issue date Apr 16, 2002
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Discharge control circuit of batteries
- Patent number 6,346,795
- Issue date Feb 12, 2002
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charge and discharge control circuit and apparatus for secondary ba...
- Patent number 6,194,871
- Issue date Feb 27, 2001
- Fujitsu Limited
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

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
Differential voltage amplifier circuit
- Publication number 20050218976
- Publication date Oct 6, 2005
- FUJITSU LIMITED
- Akira Haraguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Constant-voltage power supply circuit
- Publication number 20050151522
- Publication date Jul 14, 2005
- FUJITSU LIMITED
- Akira Haraguchi
- G05 - CONTROLLING REGULATING
Information Patent Application
Control circuit for DC/DC converter
- Publication number 20040124815
- Publication date Jul 1, 2004
- FUJITSU LIMITED
- Kyuichi Takimoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
DC-DC converter, duty-ratio setting circuit and electric appliance...
- Publication number 20030151933
- Publication date Aug 14, 2003
- FUJITSU LIMITED
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC/DC converter control circuit and DC/DC converter system
- Publication number 20030098678
- Publication date May 29, 2003
- FUJITSU LIMITED
- Akira Haraguchi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Charge circuit that performs charge control by comparing a pluralit...
- Publication number 20020024319
- Publication date Feb 28, 2002
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Charge/discharge control circuit and secondary battery
- Publication number 20010054880
- Publication date Dec 27, 2001
- FUJITSU LIMITED
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Discharge control circuit of batteries
- Publication number 20010017534
- Publication date Aug 30, 2001
- FUJITSU LIMITED
- Akira Haraguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Akira Haraguchi

Person

Patents Grantslast 30 patents

Charge/discharge control circuit and secondary battery

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

Control circuit for DC/DC converter

Constant-voltage power supply circuit

Differential voltage amplifier circuit

DC/DC converter control circuits and DC/DC converter systems with p...

DC-DC converter, duty-ratio setting circuit and electric appliance...

Charge/discharge control circuit and secondary battery

Charge circuit that performs charge control by comparing a pluralit...

Discharge control circuit of batteries

Charge and discharge control circuit and apparatus for secondary ba...

Patents Applicationslast 30 patents

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

Differential voltage amplifier circuit

Constant-voltage power supply circuit

Control circuit for DC/DC converter

DC-DC converter, duty-ratio setting circuit and electric appliance...

DC/DC converter control circuit and DC/DC converter system

Charge circuit that performs charge control by comparing a pluralit...

Charge/discharge control circuit and secondary battery

Discharge control circuit of batteries