Toshihiro Ohtani

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electronic device
- Patent number 10,471,683
- Issue date Nov 12, 2019
- Fujitsu Optical Components Limited
- Kazuyuki Wakabayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical communications device having a plate-shaped flexible printe...
- Patent number 10,416,407
- Issue date Sep 17, 2019
- Fujitsu Optical Components Limited
- Yuki Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical adapter
- Patent number 9,869,824
- Issue date Jan 16, 2018
- Fujitsu Limited
- Yukiko Sakai
- G02 - OPTICS
Information Patent Grant
Arrayed optical amplifier and optical transmission device
- Patent number 9,614,345
- Issue date Apr 4, 2017
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifying device, receiving device, and amplification method
- Patent number 9,544,087
- Issue date Jan 10, 2017
- Fujitsu Limited
- Yoshihisa Kondo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Port monitoring device and port monitoring method
- Patent number 9,154,227
- Issue date Oct 6, 2015
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tunable dispersion compensation device, optical reception apparatus...
- Patent number 9,048,955
- Issue date Jun 2, 2015
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device, optical transmission system and optica...
- Patent number 8,995,828
- Issue date Mar 31, 2015
- Fujitsu Limited
- Yuichi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission receiver and method for the same
- Patent number 8,676,054
- Issue date Mar 18, 2014
- Fujitsu Limited
- Yuichi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device, transmission and reception module, opt...
- Patent number 8,571,414
- Issue date Oct 29, 2013
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion compensating apparatus, dispersion compensating method,...
- Patent number 8,538,264
- Issue date Sep 17, 2013
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier module and dispersion compensation fiber loss det...
- Patent number 8,477,030
- Issue date Jul 2, 2013
- Fujitsu Limited
- Tomotaka Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength dispersion measurement method and device and optical tra...
- Patent number 8,390,798
- Issue date Mar 5, 2013
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion compensation device, optical reception device, method fo...
- Patent number 8,326,160
- Issue date Dec 4, 2012
- Fujitsu Limited
- Makoto Murakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier apparatus
- Patent number 8,259,390
- Issue date Sep 4, 2012
- Fujitsu Limited
- Ryuta Hoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light source wavelength control apparatus
- Patent number 8,184,990
- Issue date May 22, 2012
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus and optical transmission apparatus
- Patent number 8,131,159
- Issue date Mar 6, 2012
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control of a light source providing excitation light
- Patent number 7,911,685
- Issue date Mar 22, 2011
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chromatic dispersion compensation control method and apparatus
- Patent number 7,813,647
- Issue date Oct 12, 2010
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical output control method for use in optical transmission node...
- Patent number 7,519,300
- Issue date Apr 14, 2009
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multimode fiber transmission system
- Patent number 7,454,108
- Issue date Nov 18, 2008
- Fujitsu Limited
- Toshihiro Ohtani
- G02 - OPTICS
Information Patent Grant
Light power adjusting method, optical transmitter, and optical rece...
- Patent number 7,324,189
- Issue date Jan 29, 2008
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system
- Patent number 7,251,072
- Issue date Jul 31, 2007
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise light elimination method, noise light elimination apparatus a...
- Patent number 7,142,782
- Issue date Nov 28, 2006
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device for optical fiber transmission
- Patent number 6,819,828
- Issue date Nov 16, 2004
- Fujitsu Limited
- Tsukasa Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Raman excitation control method and optical transmission system usi...
- Patent number 6,674,567
- Issue date Jan 6, 2004
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplification system using Raman amplification
- Patent number 6,621,620
- Issue date Sep 16, 2003
- Fujitsu Limited
- Toshihiro Ohtani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical amplifier
- Patent number 6,532,102
- Issue date Mar 11, 2003
- Fujitsu Limited
- Hideki Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiaxial optical coupler
- Patent number 6,238,102
- Issue date May 29, 2001
- Fujitsu Limited
- Toshihiro Ohtani
- G02 - OPTICS
Information Patent Grant
Polarizaiton scrambler
- Patent number 6,046,839
- Issue date Apr 4, 2000
- Fujitsu Limited
- Tomoyuki Ito
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MODULATOR
- Publication number 20210318588
- Publication date Oct 14, 2021
- FUJITSU OPTICAL COMPONENTS LIMITED
- Kazuyuki WAKABAYASHI
- G02 - OPTICS
Information Patent Application
OPTICAL COMMUNICATIONS DEVICE
- Publication number 20190154942
- Publication date May 23, 2019
- FUJITSU OPTICAL COMPONENTS LIMITED
- Yuki SAKURAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE
- Publication number 20190118511
- Publication date Apr 25, 2019
- FUJITSU OPTICAL COMPONENTS LIMITED
- Kazuyuki Wakabayashi
- B32 - LAYERED PRODUCTS
Information Patent Application
OPTICAL ADAPTER
- Publication number 20170212310
- Publication date Jul 27, 2017
- Fujitsu Limited
- Yukiko Sakai
- G02 - OPTICS
Information Patent Application
OPTICAL AMPLIFIER AND METHOD OF CONTROLLING EXCITATION LIGHT
- Publication number 20170170624
- Publication date Jun 15, 2017
- Fujitsu Limited
- Masayuki YOITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ARRAYED OPTICAL AMPLIFIER AND OPTICAL TRANSMISSION DEVICE
- Publication number 20160211641
- Publication date Jul 21, 2016
- Fujitsu Limited
- Toshihiro OHTANI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
AMPLIFYING DEVICE, RECEIVING DEVICE, AND AMPLIFICATION METHOD
- Publication number 20150365187
- Publication date Dec 17, 2015
- FUJITSU LIMITED
- Yoshihisa KONDO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PORT MONITORING DEVICE AND PORT MONITORING METHOD
- Publication number 20140308035
- Publication date Oct 16, 2014
- Fujitsu Limited
- Toshihiro OHTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER, OPTICAL MODULE, AND OPTICAL CONNECTOR
- Publication number 20130258468
- Publication date Oct 3, 2013
- Fujitsu Limited
- Shinsuke FUKUI
- G02 - OPTICS
Information Patent Application
TUNABLE DISPERSION COMPENSATION DEVICE, OPTICAL RECEPTION APPARATUS...
- Publication number 20130016968
- Publication date Jan 17, 2013
- Fujitsu Limited
- Toshihiro OHTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM AND OPTICA...
- Publication number 20120121256
- Publication date May 17, 2012
- Fujitsu Limited
- Yuichi SUZUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DISPERSION MEASUREMENT METHOD AND DEVICE AND OPTICAL TRA...
- Publication number 20110205531
- Publication date Aug 25, 2011
- Fujitsu Limited
- Toshihiro OHTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR DETECTING SIGNAL BEAM
- Publication number 20110142456
- Publication date Jun 16, 2011
- Fujitsu Limited
- Tsukasa TAKAHASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISPERSION COMPENSATION DEVICE, OPTICAL RECEPTION DEVICE, METHOD FO...
- Publication number 20110123191
- Publication date May 26, 2011
- Fujitsu Limited
- Makoto MURAKAMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, TRANSMISSION AND RECEPTION MODULE, OPT...
- Publication number 20110052198
- Publication date Mar 3, 2011
- Fujitsu Limited
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION RECEIVER AND METHOD FOR THE SAME
- Publication number 20110019995
- Publication date Jan 27, 2011
- Fujitsu Limited
- Yuichi SUZUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISPERSION COMPENSATING APPARATUS, DISPERSION COMPENSATING METHOD,...
- Publication number 20100303459
- Publication date Dec 2, 2010
- FUJITSU LIMITED
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifier module and dispersion compensation fiber loss det...
- Publication number 20100271204
- Publication date Oct 28, 2010
- FUJITSU LIMITED
- Tomotaka Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission apparatus and optical Transmission apparatus
- Publication number 20100040381
- Publication date Feb 18, 2010
- FUJITSU LIMITED
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM AND COM...
- Publication number 20090324257
- Publication date Dec 31, 2009
- FUJITSU LIMITED
- Makoto MURAKAMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AMPLIFIER APPARATUS
- Publication number 20090237781
- Publication date Sep 24, 2009
- FUJITSU LIMITED
- Ryuta Hoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL APPARATUS
- Publication number 20090190920
- Publication date Jul 30, 2009
- FUJITSU LIMITED
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Circuit for detecting connection failure between printed circuit bo...
- Publication number 20090001995
- Publication date Jan 1, 2009
- FUJITSU LIMITED
- Masaki Satoh
- G01 - MEASURING TESTING
Information Patent Application
CONTROL OF A LIGHT SOURCE PROVIDING EXCITATION LIGHT
- Publication number 20080130098
- Publication date Jun 5, 2008
- FUJITSU LIMITED
- Toshihiro OHTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Chromatic dispersion compensation control method and apparatus
- Publication number 20080089695
- Publication date Apr 17, 2008
- FUJITSU LIMITED
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission device
- Publication number 20080069572
- Publication date Mar 20, 2008
- FUJITSU LIMITED
- Hiroto Ikeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LIGHT SOURCE WAVELENGTH CONTROL APPARATUS
- Publication number 20070223925
- Publication date Sep 27, 2007
- FUJITSU LIMITED
- Toshihiro OHTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LIGHT POWER ADJUSTING METHOD, OPTICAL TRANSMITTER, AND OPTICAL RECE...
- Publication number 20070139774
- Publication date Jun 21, 2007
- FUJITSU LIMITED
- Toshihiro OHTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multimode fiber transmission system
- Publication number 20060093295
- Publication date May 4, 2006
- FUJITSU LIMITED
- Toshihiro Ohtani
- G02 - OPTICS
Information Patent Application
Optical output control method for use in optical transmission node...
- Publication number 20050185957
- Publication date Aug 25, 2005
- FUJITSU LIMITED
- Toshihiro Ohtani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Toshihiro Ohtani

Person

Patents Grantslast 30 patents

Electronic device

Optical communications device having a plate-shaped flexible printe...

Optical adapter

Arrayed optical amplifier and optical transmission device

Amplifying device, receiving device, and amplification method

Port monitoring device and port monitoring method

Tunable dispersion compensation device, optical reception apparatus...

Optical transmission device, optical transmission system and optica...

Optical transmission receiver and method for the same

Optical transmission device, transmission and reception module, opt...

Dispersion compensating apparatus, dispersion compensating method,...

Optical amplifier module and dispersion compensation fiber loss det...

Wavelength dispersion measurement method and device and optical tra...

Dispersion compensation device, optical reception device, method fo...

Optical amplifier apparatus

Light source wavelength control apparatus

Transmission apparatus and optical transmission apparatus

Control of a light source providing excitation light

Chromatic dispersion compensation control method and apparatus

Optical output control method for use in optical transmission node...

Multimode fiber transmission system

Light power adjusting method, optical transmitter, and optical rece...

Optical transmission system

Noise light elimination method, noise light elimination apparatus a...

Method and device for optical fiber transmission

Raman excitation control method and optical transmission system usi...

Optical amplification system using Raman amplification

Optical amplifier

Multiaxial optical coupler

Polarizaiton scrambler

Patents Applicationslast 30 patents

OPTICAL MODULATOR

OPTICAL COMMUNICATIONS DEVICE

ELECTRONIC DEVICE

OPTICAL ADAPTER

OPTICAL AMPLIFIER AND METHOD OF CONTROLLING EXCITATION LIGHT

ARRAYED OPTICAL AMPLIFIER AND OPTICAL TRANSMISSION DEVICE

AMPLIFYING DEVICE, RECEIVING DEVICE, AND AMPLIFICATION METHOD

PORT MONITORING DEVICE AND PORT MONITORING METHOD

OPTICAL TRANSMITTER, OPTICAL MODULE, AND OPTICAL CONNECTOR

TUNABLE DISPERSION COMPENSATION DEVICE, OPTICAL RECEPTION APPARATUS...

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM AND OPTICA...

WAVELENGTH DISPERSION MEASUREMENT METHOD AND DEVICE AND OPTICAL TRA...

APPARATUS AND METHOD FOR DETECTING SIGNAL BEAM

DISPERSION COMPENSATION DEVICE, OPTICAL RECEPTION DEVICE, METHOD FO...

OPTICAL TRANSMISSION DEVICE, TRANSMISSION AND RECEPTION MODULE, OPT...

OPTICAL TRANSMISSION RECEIVER AND METHOD FOR THE SAME

DISPERSION COMPENSATING APPARATUS, DISPERSION COMPENSATING METHOD,...

Optical amplifier module and dispersion compensation fiber loss det...

Transmission apparatus and optical Transmission apparatus

OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM AND COM...

OPTICAL AMPLIFIER APPARATUS

OPTICAL APPARATUS

Circuit for detecting connection failure between printed circuit bo...

CONTROL OF A LIGHT SOURCE PROVIDING EXCITATION LIGHT

Chromatic dispersion compensation control method and apparatus

Optical transmission device

LIGHT SOURCE WAVELENGTH CONTROL APPARATUS

LIGHT POWER ADJUSTING METHOD, OPTICAL TRANSMITTER, AND OPTICAL RECE...

Multimode fiber transmission system

Optical output control method for use in optical transmission node...