Hiroaki Kyougoku

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Excessive current input suppressing semiconductor laser light emitt...
- Patent number 7,653,101
- Issue date Jan 26, 2010
- Ricoh Company, Ltd.
- Junichi Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser driving device, semiconductor laser driving met...
- Patent number 7,480,320
- Issue date Jan 20, 2009
- Ricoh Company, Ltd.
- Hiroaki Kyougoku
- G11 - INFORMATION STORAGE
Information Patent Grant
Excessive current input suppressing semiconductor laser light emitt...
- Patent number 7,359,414
- Issue date Apr 15, 2008
- Ricoh Company, Ltd.
- Junichi Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for semiconductor laser driving capable of sta...
- Patent number 7,301,976
- Issue date Nov 27, 2007
- Ricoh Company, Ltd.
- Junichi Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser driver circuit
- Patent number 6,917,639
- Issue date Jul 12, 2005
- Ricoh Company, Ltd.
- Masaaki Ishida
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Excessive current input suppressing semiconductor laser light emitt...
- Publication number 20080225916
- Publication date Sep 18, 2008
- Junichi Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor laser driving device, semiconductor laser driving met...
- Publication number 20060088070
- Publication date Apr 27, 2006
- Hiroaki Kyougoku
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for semiconductor laser driving capable of sta...
- Publication number 20050141576
- Publication date Jun 30, 2005
- Junichi Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Excessive current input suppressing semiconductor laser light emitt...
- Publication number 20050135440
- Publication date Jun 23, 2005
- Junichi Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Laser driver circuit
- Publication number 20030035451
- Publication date Feb 20, 2003
- Masaaki Ishida
- H01 - BASIC ELECTRIC ELEMENTS