Hisashi Takamatsu

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical phase shifter and demodulator
- Patent number 8,619,351
- Issue date Dec 31, 2013
- Oclaro Japan, Inc.
- Hisashi Takamatsu
- G02 - OPTICS
Information Patent Grant
Optical receiver module and manufacturing method with a shifted and...
- Patent number 8,378,289
- Issue date Feb 19, 2013
- Oclaro Japan, Inc.
- Hisashi Takamatsu
- G02 - OPTICS
Information Patent Grant
Optical transmitter module
- Patent number 7,626,825
- Issue date Dec 1, 2009
- OpNext Japan, Inc.
- Hisashi Takamatsu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method of compensating for wavelength dispersion of o...
- Patent number 7,397,981
- Issue date Jul 8, 2008
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method of compensating for wavelength dispersion of o...
- Patent number 6,744,958
- Issue date Jun 1, 2004
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber amplifier
- Patent number 6,738,182
- Issue date May 18, 2004
- Fujitsu Limited
- Shinya Inagaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical modulator
- Patent number 5,764,400
- Issue date Jun 9, 1998
- Fujitsu Ltd.
- Tomoyuki Itou
- G02 - OPTICS
Information Patent Grant
Light amplifier
- Patent number 5,537,244
- Issue date Jul 16, 1996
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Operating point trimming method for optical waveguide modulator and...
- Patent number 5,283,842
- Issue date Feb 1, 1994
- Fujitsu Limited
- Hironao Hakogi
- G02 - OPTICS
Information Patent Grant
Polarization beam coupler including a splitter for producing an out...
- Patent number 5,223,975
- Issue date Jun 29, 1993
- Fujitsu Limited
- Norihisa Naganuma
- G02 - OPTICS
Information Patent Grant
Optical coupler ultizing prisms
- Patent number 5,125,053
- Issue date Jun 23, 1992
- Fujitsu Limited
- Kenichi Abe
- G02 - OPTICS
Information Patent Grant
Polarization coupler
- Patent number 5,015,055
- Issue date May 14, 1991
- Fujitsu Limited
- Hisashi Takamatsu
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL PHASE SHIFTER AND DEMODULATOR
- Publication number 20120287497
- Publication date Nov 15, 2012
- OpNext Japan, Inc.
- Hisashi TAKAMATSU
- G02 - OPTICS
Information Patent Application
OPTICAL RECEIVER MODULE AND MANUFACTURING METHOD FOR THE OPTICAL RE...
- Publication number 20100148041
- Publication date Jun 17, 2010
- Hisashi Takamatsu
- G02 - OPTICS
Information Patent Application
Optical transmitter module
- Publication number 20080196929
- Publication date Aug 21, 2008
- Hisashi Takamatsu
- G02 - OPTICS
Information Patent Application
Apparatus and method of compensating for wavelength dispersion of o...
- Publication number 20040208434
- Publication date Oct 21, 2004
- FUJITSU LIMITED
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical fiber amplifier
- Publication number 20020141045
- Publication date Oct 3, 2002
- FUJITSU LIMITED
- Shinya Inagaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Apparatus and method of compensating for wavelength dispersion of o...
- Publication number 20010007605
- Publication date Jul 12, 2001
- Shinya Inagaki
- G02 - OPTICS

Hisashi Takamatsu

Person

Patents Grantslast 30 patents

Optical phase shifter and demodulator

Optical receiver module and manufacturing method with a shifted and...

Optical transmitter module

Apparatus and method of compensating for wavelength dispersion of o...

Apparatus and method of compensating for wavelength dispersion of o...

Optical fiber amplifier

Optical modulator

Light amplifier

Operating point trimming method for optical waveguide modulator and...

Polarization beam coupler including a splitter for producing an out...

Optical coupler ultizing prisms

Polarization coupler

Patents Applicationslast 30 patents

OPTICAL PHASE SHIFTER AND DEMODULATOR

OPTICAL RECEIVER MODULE AND MANUFACTURING METHOD FOR THE OPTICAL RE...

Optical transmitter module

Apparatus and method of compensating for wavelength dispersion of o...

Optical fiber amplifier

Apparatus and method of compensating for wavelength dispersion of o...