Kazue Otsuka

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light branching/inserting apparatus and light branching apparatus u...
- Patent number 7,142,785
- Issue date Nov 28, 2006
- Fujitsu Limited
- Kazue Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier which compensates for dispersion of a WDM optical...
- Patent number 6,930,824
- Issue date Aug 16, 2005
- Fujitsu Limited
- George Ishikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus, optical transmission system, and op...
- Patent number 6,583,900
- Issue date Jun 24, 2003
- Fujitsu Limited
- Hiroshi Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light branching/inserting apparatus and light branching apparatus u...
- Patent number 6,538,782
- Issue date Mar 25, 2003
- Fujitsu Limited
- Kazue Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus, optical transmission system, and op...
- Patent number 6,351,323
- Issue date Feb 26, 2002
- Fujitsu Limited
- Hiroshi Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multiplex transmission method and optical disper...
- Patent number 6,275,314
- Issue date Aug 14, 2001
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical wavelength multiplex transmission method and optical disper...
- Patent number 6,252,687
- Issue date Jun 26, 2001
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical wavelength multiplex transmission method and optical disper...
- Patent number 6,243,176
- Issue date Jun 5, 2001
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical amplifier and optical communication system employing the same
- Patent number 6,067,187
- Issue date May 23, 2000
- Fujitsu Limited
- Hiroshi Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system which determines the spectrum of a wav...
- Patent number 5,894,362
- Issue date Apr 13, 1999
- Fujitsu Limited
- Hiroshi Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system employing single mode optical transmiss...
- Patent number 5,886,804
- Issue date Mar 23, 1999
- Fujitsu Limited
- Hiroshi Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber transmission line
- Patent number 5,856,881
- Issue date Jan 5, 1999
- Fujitsu Limited
- Kazue Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for scrambling the polarization of signal ligh...
- Patent number 5,841,557
- Issue date Nov 24, 1998
- Fujitsu Limited
- Kazue Otsuka
- G02 - OPTICS
Information Patent Grant
Optical fiber transmission line
- Patent number 5,790,292
- Issue date Aug 4, 1998
- Fujitsu Limited
- Kazue Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multiplex transmission method and optical disper...
- Patent number 5,696,614
- Issue date Dec 9, 1997
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical dispersion compensation method using transmissible band det...
- Patent number 5,636,046
- Issue date Jun 3, 1997
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical dispersion compensation method for shifting a zero dispersi...
- Patent number 5,612,807
- Issue date Mar 18, 1997
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical dispersion compensation method for shifting a zero dispersi...
- Patent number 5,602,666
- Issue date Feb 11, 1997
- Fujitsu Limited
- George Ishikawa
- G02 - OPTICS
Information Patent Grant
Reference light source device using laser
- Patent number 5,440,207
- Issue date Aug 8, 1995
- Fujitsu Limited
- Kazue Otsuka
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Light branching/inserting apparatus and light branching apparatus u...
- Publication number 20030138254
- Publication date Jul 24, 2003
- FUJITSU LIMITED
- Kazue Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission apparatus, optical transmission system, and op...
- Publication number 20020101633
- Publication date Aug 1, 2002
- FUJITSU LIMITED
- Hiroshi Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kazue Otsuka

Person

Patents Grantslast 30 patents

Light branching/inserting apparatus and light branching apparatus u...

Optical amplifier which compensates for dispersion of a WDM optical...

Optical transmission apparatus, optical transmission system, and op...

Light branching/inserting apparatus and light branching apparatus u...

Optical transmission apparatus, optical transmission system, and op...

Optical wavelength multiplex transmission method and optical disper...

Optical wavelength multiplex transmission method and optical disper...

Optical wavelength multiplex transmission method and optical disper...

Optical amplifier and optical communication system employing the same

Optical communication system which determines the spectrum of a wav...

Optical transmission system employing single mode optical transmiss...

Optical fiber transmission line

Method and apparatus for scrambling the polarization of signal ligh...

Optical fiber transmission line

Optical wavelength multiplex transmission method and optical disper...

Optical dispersion compensation method using transmissible band det...

Optical dispersion compensation method for shifting a zero dispersi...

Optical dispersion compensation method for shifting a zero dispersi...

Reference light source device using laser

Patents Applicationslast 30 patents

Light branching/inserting apparatus and light branching apparatus u...

Optical transmission apparatus, optical transmission system, and op...