Koichi Hayakawa

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Okayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor laser device
- Patent number 7,860,139
- Issue date Dec 28, 2010
- Panasonic Corporation
- Toru Takayama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device
- Patent number 7,839,911
- Issue date Nov 23, 2010
- Panasonic Corporation
- Tomoya Satoh
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device
- Patent number 7,542,500
- Issue date Jun 2, 2009
- Panasonic Corporation
- Toru Takayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device and method for fabricating the same
- Patent number 7,539,230
- Issue date May 26, 2009
- Panasonic Corporation
- Toru Takayama
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LASER DEVICE
- Publication number 20090296765
- Publication date Dec 3, 2009
- Toru TAKAYAMA
- B82 - NANO-TECHNOLOGY
Information Patent Application
TWO-WAVELENGTH SEMICONDUCTOR LASER DEVICE
- Publication number 20090232178
- Publication date Sep 17, 2009
- Koichi HAYAKAWA
- B82 - NANO-TECHNOLOGY
Information Patent Application
SEMICONDUCTOR LASER DEVICE
- Publication number 20090201962
- Publication date Aug 13, 2009
- Tomoya Satoh
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor laser device
- Publication number 20080175295
- Publication date Jul 24, 2008
- Toru Takayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor laser device and method for fabricating the same
- Publication number 20080043797
- Publication date Feb 21, 2008
- Toru Takayama
- B82 - NANO-TECHNOLOGY