Eishi Kubota

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Mito-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser light source
- Patent number 7,573,921
- Issue date Aug 11, 2009
- Nippon Telegraph and Telephone Corporation
- Junji Yumoto
- G01 - MEASURING TESTING
Information Patent Grant
Laser light source
- Patent number 7,391,795
- Issue date Jun 24, 2008
- Nippon Telegraph and Telephone Corporation
- Junji Yumoto
- G01 - MEASURING TESTING
Information Patent Grant
Optical waveguide and method of manufacture
- Patent number 7,110,652
- Issue date Sep 19, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Grant
Optical waveguide and method of manufacture
- Patent number 6,996,321
- Issue date Feb 7, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Grant
Wavelength converter
- Patent number 6,795,232
- Issue date Sep 21, 2004
- Nippon Telegraph and Telephone Corporation
- Kazuo Fujiura
- G02 - OPTICS
Information Patent Grant
Optical waveguide and method of manufacture
- Patent number 6,792,189
- Issue date Sep 14, 2004
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LASER LIGHT SOURCE
- Publication number 20070297465
- Publication date Dec 27, 2007
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Junji Yumoto
- G02 - OPTICS
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20060018616
- Publication date Jan 26, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20060018617
- Publication date Jan 26, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Laser light source
- Publication number 20060013270
- Publication date Jan 19, 2006
- Nippon Telegraph and Telephone Corporation
- Junji Yumoto
- G02 - OPTICS
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20050008318
- Publication date Jan 13, 2005
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20030072550
- Publication date Apr 17, 2003
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Wavelength converter
- Publication number 20020141040
- Publication date Oct 3, 2002
- Kazuo Fujiura
- G02 - OPTICS