YUJI KOTAKI

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KAWASAKI-SHI, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wavelength tunable laser and method of controlling the same
- Patent number 7,130,322
- Issue date Oct 31, 2006
- Fujitsu Limited
- Kazumasa Takabayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wavelength-selectable laser capable of high-speed frequency control
- Patent number 6,847,662
- Issue date Jan 25, 2005
- Fujitsu Limited
- Martin Bouda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method of a semiconductor device having a diffraction...
- Patent number 6,376,338
- Issue date Apr 23, 2002
- Fujitsu Limited
- Mitsuru Ekawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method of making a tunable laser diode having a distributed feedbac...
- Patent number 5,358,898
- Issue date Oct 25, 1994
- Fujitsu Limited
- Shouichi Ogita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Driver circuit of a tunable laser diode
- Patent number 5,255,276
- Issue date Oct 19, 1993
- Fujitsu Limited
- Haruhiko Tabuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tunable laser diode having a distributed feedback structure
- Patent number 5,170,402
- Issue date Dec 8, 1992
- Fujitsu Limited
- Shouichi Ogita
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Wavelength tunable laser and method of controlling the same
- Publication number 20050094680
- Publication date May 5, 2005
- FUJITSU LIMITED
- Kazumasa Takabayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wavelength-selectable laser capable of high-speed frequency control
- Publication number 20030179790
- Publication date Sep 25, 2003
- FUJITSU LIMITED
- Martin Bouda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MANHUFACTURE METHOD OF SEMICONDCTOR DEVICE HAVING A DIFFRACTION GRA...
- Publication number 20010001734
- Publication date May 24, 2001
- MITSURU EKAWA
- B82 - NANO-TECHNOLOGY