Hiroki Doi

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Tenri-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power-supply semiconductor integrated circuit, power-supply semicon...
- Patent number 7,586,299
- Issue date Sep 8, 2009
- Sharp Kabushiki Kaisha
- Toshiya Fujiyama
- G01 - MEASURING TESTING
Information Patent Grant
Charge pump DC/DC converter circuit
- Patent number 7,224,591
- Issue date May 29, 2007
- Sharp Kabushiki Kaisha
- Kenji Kaishita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power-on reset circuit
- Patent number 6,972,602
- Issue date Dec 6, 2005
- Sharp Kabushiki Kaisha
- Tetsuya Akamatsu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Negative voltage output charge pump circuit
- Patent number 6,803,807
- Issue date Oct 12, 2004
- Sharp Kabushiki Kaisha
- Toshiya Fujiyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hall device biasing circuit and magnetism detection circuit includi...
- Patent number 6,720,761
- Issue date Apr 13, 2004
- Sharp Kabushiki Kaisha
- Hiroki Doi
- G01 - MEASURING TESTING
Information Patent Grant
Delay circuit and ring oscillator incorporating the same
- Patent number 6,400,201
- Issue date Jun 4, 2002
- Sharp Kabushiki Kaisha
- Masanori Inamori
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
IIL reset circuit
- Patent number 6,392,444
- Issue date May 21, 2002
- Sharp Kabushiki Kaisha
- Masanori Inamori
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Power-supply semiconductor integrated circuit, power-supply semicon...
- Publication number 20070035280
- Publication date Feb 15, 2007
- Sharp Kabushiki Kaisha
- Toshiya Fujiyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Charge pump DC/DC converter circuit
- Publication number 20060193156
- Publication date Aug 31, 2006
- Kenji Kaishita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Charge pump DC / DC converter
- Publication number 20060139074
- Publication date Jun 29, 2006
- Hiroki Doi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power-on reset circuit
- Publication number 20040212409
- Publication date Oct 28, 2004
- Tetsuya Akamatsu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Negative voltage output charge pump circuit
- Publication number 20030151448
- Publication date Aug 14, 2003
- Toshiya Fujiyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Delay circuit and ring oscillator incorporating the same
- Publication number 20020039036
- Publication date Apr 4, 2002
- Masanori Inamori
- H03 - BASIC ELECTRONIC CIRCUITRY