Takehito Doi

Person

Kasugai, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Power control circuit performing soft start operation. power supply...
- Patent number 8,922,181
- Issue date Dec 30, 2014
- Spansion LLC
- Hidetaka Yamaura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit with variation correction function
- Patent number 8,049,539
- Issue date Nov 1, 2011
- Fujitsu Semiconductor Limited
- Masayuki Yonekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
DC-DC converter with oscillator and monitoring function
- Patent number 7,777,474
- Issue date Aug 17, 2010
- Fujitsu Semiconductor Limited
- Yukinori Maekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit for detecting difference in capacitance
- Patent number 7,250,773
- Issue date Jul 31, 2007
- Fujitsu Limited
- Koji Takekawa
- G01 - MEASURING TESTING
Information Patent Grant
Circuit for detecting difference in capacitance
- Patent number 7,119,555
- Issue date Oct 10, 2006
- Fujitsu Limited
- Koji Takekawa
- G01 - MEASURING TESTING
Information Patent Grant
PLL circuit including a voltage controlled oscillator and a method...
- Patent number 6,853,257
- Issue date Feb 8, 2005
- Fujitsu Limited
- Masayuki Yonekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
PLL frequency synthesizer with lock detection circuit
- Patent number 6,757,349
- Issue date Jun 29, 2004
- Fujitsu Limited
- Satoshi Katayama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Charge pump circuits for PLL frequency synthesizer
- Patent number 5,534,821
- Issue date Jul 9, 1996
- Fujitsu Limited
- Takehiro Akiyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
ECL-to-CMOS signal level converter
- Patent number 5,528,171
- Issue date Jun 18, 1996
- Fujitsu Limited
- Takehito Doi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor integrated circuit having polycell structure and meth...
- Patent number 5,388,055
- Issue date Feb 7, 1995
- Fujitsu Limited
- Tetsu Tanizawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Bipolar integrated circuit having a unit block structure
- Patent number 5,124,776
- Issue date Jun 23, 1992
- Fujitsu Limited
- Tetsu Tanizawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
POWER CONTROL CIRCUIT, POWER SUPPLY DEVICE, AND ELECTRONIC DEVICE
- Publication number 20100320981
- Publication date Dec 23, 2010
- FUJITSU SEMICONDUCTOR LIMITED
- Hidetaka YAMAURA
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
DC-DC converter and control for DC-DC converter
- Publication number 20070285074
- Publication date Dec 13, 2007
- FUJITSU LIMITED
- Yukinori Maekawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Circuit for detecting difference in capacitance
- Publication number 20070007971
- Publication date Jan 11, 2007
- FUJITSU LIMITED
- Koji Takekawa
- G01 - MEASURING TESTING
Information Patent Application
Circuit for detecting difference in capacitance
- Publication number 20060017449
- Publication date Jan 26, 2006
- FUJITSU LIMITED
- Koji Takekawa
- G01 - MEASURING TESTING
Information Patent Application
Voltage controlled oscillator and PLL circuit including voltage con...
- Publication number 20030222726
- Publication date Dec 4, 2003
- FUJITSU LIMITED
- Masayuki Yonekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Circuit with variation correction function
- Publication number 20030184352
- Publication date Oct 2, 2003
- FUJITSU LIMITED
- Masayuki Yonekawa
- H03 - BASIC ELECTRONIC CIRCUITRY

Takehito Doi

Person

Patents Grantslast 30 patents

Power control circuit performing soft start operation. power supply...

Circuit with variation correction function

DC-DC converter with oscillator and monitoring function

Circuit for detecting difference in capacitance

Circuit for detecting difference in capacitance

PLL circuit including a voltage controlled oscillator and a method...

PLL frequency synthesizer with lock detection circuit

Charge pump circuits for PLL frequency synthesizer

ECL-to-CMOS signal level converter

Semiconductor integrated circuit having polycell structure and meth...

Bipolar integrated circuit having a unit block structure

Patents Applicationslast 30 patents

POWER CONTROL CIRCUIT, POWER SUPPLY DEVICE, AND ELECTRONIC DEVICE

DC-DC converter and control for DC-DC converter

Circuit for detecting difference in capacitance

Circuit for detecting difference in capacitance

Voltage controlled oscillator and PLL circuit including voltage con...

Circuit with variation correction function