Takafumi Terahara

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmission device, optical transmission system, and optic...
- Patent number 11,968,033
- Issue date Apr 23, 2024
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and fiber type determination method
- Patent number 11,876,559
- Issue date Jan 16, 2024
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiving apparatus and decoding method
- Patent number 11,683,117
- Issue date Jun 20, 2023
- Fujitsu Limited
- Kazumasa Mikami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and optical transmission method
- Patent number 11,309,968
- Issue date Apr 19, 2022
- Fujitsu Limited
- Anh Ha Ngo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical branching and insertion device, network management device,...
- Patent number 9,071,379
- Issue date Jun 30, 2015
- Fujitsu Limited
- Hiroki Oi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system, measuring apparatus, transmitting apparatus,...
- Patent number 9,031,418
- Issue date May 12, 2015
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical adding and dropping device and optical transmission apparatus
- Patent number 8,958,695
- Issue date Feb 17, 2015
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 8,295,703
- Issue date Oct 23, 2012
- Fujitsu Limited
- Akira Miura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 8,200,092
- Issue date Jun 12, 2012
- Fujitsu Limited
- Akira Miura
Information Patent Grant
Optical add/drop multiplexer
- Patent number 8,131,152
- Issue date Mar 6, 2012
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chromatic dispersion compensating apparatus
- Patent number 7,936,993
- Issue date May 3, 2011
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical cross-connect using wavelength selective switches
- Patent number 7,933,519
- Issue date Apr 26, 2011
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of monitoring optical signal to noise ratio and optical tran...
- Patent number 7,873,283
- Issue date Jan 18, 2011
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interferometer for demodulating differential M-phase shift keying s...
- Patent number 7,860,408
- Issue date Dec 28, 2010
- Fujitsu Limited
- Akihiko Isomura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add/drop multiplexer
- Patent number 7,853,148
- Issue date Dec 14, 2010
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing optical transmission system, and w...
- Patent number 7,796,887
- Issue date Sep 14, 2010
- Fujitsu Limited
- Takafumi Terahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add/drop multiplexer
- Patent number 7,792,428
- Issue date Sep 7, 2010
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chromatic dispersion compensating apparatus
- Patent number 7,751,706
- Issue date Jul 6, 2010
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus having OADM function
- Patent number 7,720,383
- Issue date May 18, 2010
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical node and optical add/drop multiplexer
- Patent number 7,711,270
- Issue date May 4, 2010
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitting apparatus, method of increasing the number of...
- Patent number 7,620,321
- Issue date Nov 17, 2009
- Fujitsu Limited
- Akira Miura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing optical repeating transmission met...
- Patent number 7,616,893
- Issue date Nov 10, 2009
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quadrature phase-shift keying modulator and phase shift amount cont...
- Patent number 7,603,007
- Issue date Oct 13, 2009
- Fujitsu Limited
- Takafumi Terahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network designing device and computer-readable medium
- Patent number 7,505,414
- Issue date Mar 17, 2009
- Fujitsu Limited
- Hisao Nakashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for transmitting information in an optical commun...
- Patent number 7,483,639
- Issue date Jan 27, 2009
- Fujitsu Limited
- Takeshi Hoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Raman amplification system utilizing modulated second-order raman p...
- Patent number 7,477,446
- Issue date Jan 13, 2009
- Fujitsu Limited
- Rainer Hainberger
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chromatic dispersion compensating apparatus
- Patent number 7,466,920
- Issue date Dec 16, 2008
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing transmission system
- Patent number 7,437,074
- Issue date Oct 14, 2008
- Fujitsu Limited
- Kentaro Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber cable
- Patent number 7,415,182
- Issue date Aug 19, 2008
- Fujitsu Limited
- Takafumi Terahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength dispersion compensation design method and a system thereof
- Patent number 7,382,979
- Issue date Jun 3, 2008
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FORWARD RAMAN AMPLIFIER, BIDIRECTIONAL RAMAN AMPLIFICATION SYSTEM,...
- Publication number 20240129034
- Publication date Apr 18, 2024
- Fujitsu Limited
- Hiroshi NAKAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND FIBER TYPE DETERMINATION METHOD
- Publication number 20220385364
- Publication date Dec 1, 2022
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...
- Publication number 20220368448
- Publication date Nov 17, 2022
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD
- Publication number 20220006530
- Publication date Jan 6, 2022
- Fujitsu Limited
- Anh Ha Ngo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RECEIVING APPARATUS AND DECODING METHOD
- Publication number 20210409145
- Publication date Dec 30, 2021
- Fujitsu Limited
- KAZUMASA MIKAMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL BRANCHING AND INSERTION DEVICE, NETWORK MANAGEMENT DEVICE,...
- Publication number 20140010535
- Publication date Jan 9, 2014
- Hiroki OI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION SYSTEM, MEASURING APPARATUS, TRANSMITTING APPARATUS,...
- Publication number 20120128351
- Publication date May 24, 2012
- FUJITSU LIMITED
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical Add/Drop Multiplexer
- Publication number 20110038636
- Publication date Feb 17, 2011
- Fujitsu Limited
- Yuichi AKIYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Chromatic dispersion compensating apparatus
- Publication number 20100135664
- Publication date Jun 3, 2010
- FUJITSU LIMITED
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission apparatus
- Publication number 20100028007
- Publication date Feb 4, 2010
- FUJITSU LIMITED
- Akira Miura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADDING AND DROPPING DEVICE AND OPTICAL TRANSMISSION APPARATUS
- Publication number 20090220242
- Publication date Sep 3, 2009
- FUJITSU LIMITED
- Hiroki OOI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical Add/Drop Multiplexer
- Publication number 20090148166
- Publication date Jun 11, 2009
- FUJITSU LIMITED
- Yuichi AKIYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and System for Transmitting Information in an Optical Commun...
- Publication number 20090136229
- Publication date May 28, 2009
- Fujitsu Network Communications, Inc.
- Takeshi Hoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Chromatic dispersion compensating apparatus
- Publication number 20090080894
- Publication date Mar 26, 2009
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
QUADRATURE PHASE-SHIFT KEYING MODULATOR AND PHASE SHIFT AMOUNT CONT...
- Publication number 20090047028
- Publication date Feb 19, 2009
- FUJITSU LIMITED
- Takafumi TERAHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical cross-connect using wavelength selective switches
- Publication number 20080138068
- Publication date Jun 12, 2008
- FUJITSU LIMITED
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Raman amplifier and optical communication system including the same
- Publication number 20080074733
- Publication date Mar 27, 2008
- Sumitomo Electric Industries, Ltd.
- Tetsufumi Tsuzaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical transmission apparatus having OADM function
- Publication number 20080056715
- Publication date Mar 6, 2008
- FUJITSU LIMITED
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Interferometer for demodulating differential M-phase shift keying s...
- Publication number 20070177151
- Publication date Aug 2, 2007
- FUJITSU LIMITED
- Akihiko Isomura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for transmitting information in an optical commun...
- Publication number 20070053692
- Publication date Mar 8, 2007
- Takeshi Hoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical fiber cable
- Publication number 20060251364
- Publication date Nov 9, 2006
- Takafumi Terahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wavelength dispersion compensation design method and a system thereof
- Publication number 20060193638
- Publication date Aug 31, 2006
- FUJITSU LIMITED
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system
- Publication number 20060193554
- Publication date Aug 31, 2006
- FUJITSU LIMITED
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system, optical repeater, and optical transmis...
- Publication number 20060176545
- Publication date Aug 10, 2006
- FUJITSU LIMITED
- Kentaro Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical node and optical add/drop multiplexer
- Publication number 20060140625
- Publication date Jun 29, 2006
- FUJITSU LIMITED
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmitting apparatus, method of increasing the number of...
- Publication number 20060098981
- Publication date May 11, 2006
- FUJITSU LIMITED
- Akira Miura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical switch
- Publication number 20060093258
- Publication date May 4, 2006
- FUJITSU LIMITED
- Takafumi Terahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical add/drop multiplexer
- Publication number 20060034610
- Publication date Feb 16, 2006
- FUJITSU LIMITED
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network designing device and program
- Publication number 20060023641
- Publication date Feb 2, 2006
- FUJITSU LIMITED
- Hisao Nakashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Distributed optical amplifying apparatus, optical communication sta...
- Publication number 20050157991
- Publication date Jul 21, 2005
- FUJITSU LIMITED
- Takafumi Terahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Takafumi Terahara

Person

Patents Grantslast 30 patents

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

Optical transmission system and fiber type determination method

Receiving apparatus and decoding method

Optical transmission device and optical transmission method

Optical branching and insertion device, network management device,...

Communication system, measuring apparatus, transmitting apparatus,...

Optical adding and dropping device and optical transmission apparatus

Optical transmission apparatus

Optical transmission apparatus

Optical add/drop multiplexer

Chromatic dispersion compensating apparatus

Optical cross-connect using wavelength selective switches

Method of monitoring optical signal to noise ratio and optical tran...

Interferometer for demodulating differential M-phase shift keying s...

Optical add/drop multiplexer

Wavelength division multiplexing optical transmission system, and w...

Optical add/drop multiplexer

Chromatic dispersion compensating apparatus

Optical transmission apparatus having OADM function

Optical node and optical add/drop multiplexer

Optical transmitting apparatus, method of increasing the number of...

Wavelength division multiplexing optical repeating transmission met...

Quadrature phase-shift keying modulator and phase shift amount cont...

Network designing device and computer-readable medium

Method and system for transmitting information in an optical commun...

Raman amplification system utilizing modulated second-order raman p...

Chromatic dispersion compensating apparatus

Wavelength division multiplexing transmission system

Optical fiber cable

Wavelength dispersion compensation design method and a system thereof

Patents Applicationslast 30 patents

FORWARD RAMAN AMPLIFIER, BIDIRECTIONAL RAMAN AMPLIFICATION SYSTEM,...

OPTICAL TRANSMISSION SYSTEM AND FIBER TYPE DETERMINATION METHOD

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...

OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD

RECEIVING APPARATUS AND DECODING METHOD

OPTICAL BRANCHING AND INSERTION DEVICE, NETWORK MANAGEMENT DEVICE,...

COMMUNICATION SYSTEM, MEASURING APPARATUS, TRANSMITTING APPARATUS,...

Optical Add/Drop Multiplexer

Chromatic dispersion compensating apparatus

Optical transmission apparatus

OPTICAL ADDING AND DROPPING DEVICE AND OPTICAL TRANSMISSION APPARATUS

Optical Add/Drop Multiplexer

Method and System for Transmitting Information in an Optical Commun...

Chromatic dispersion compensating apparatus

QUADRATURE PHASE-SHIFT KEYING MODULATOR AND PHASE SHIFT AMOUNT CONT...

Optical cross-connect using wavelength selective switches

Raman amplifier and optical communication system including the same

Optical transmission apparatus having OADM function

Interferometer for demodulating differential M-phase shift keying s...

Method and system for transmitting information in an optical commun...

Optical fiber cable

Wavelength dispersion compensation design method and a system thereof

Optical transmission system

Optical transmission system, optical repeater, and optical transmis...

Optical node and optical add/drop multiplexer

Optical transmitting apparatus, method of increasing the number of...

Optical switch

Optical add/drop multiplexer

Network designing device and program

Distributed optical amplifying apparatus, optical communication sta...