Takaaki Ogata

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Accurate measurement for guided acoustic-wave Brillouin scattering
- Patent number 12,034,482
- Issue date Jul 9, 2024
- NEC Corporation
- Fatih Yaman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Estimating mode field distribution in optical fibers from guided ac...
- Patent number 11,467,061
- Issue date Oct 11, 2022
- NEC Corporation
- Fatih Yaman
- G01 - MEASURING TESTING
Information Patent Grant
3D waveguide for efficient coupling of multimode pump and signals t...
- Patent number 10,581,216
- Issue date Mar 3, 2020
- NEC Corporation
- Fatih Yaman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fiber nonlinearity mitigation using strong mode coupling and large...
- Patent number 10,401,564
- Issue date Sep 3, 2019
- NEC Corporation
- Fatih Yaman
- G02 - OPTICS
Information Patent Grant
Constellation designs with non-gray bit mapping
- Patent number 9,819,530
- Issue date Nov 14, 2017
- NEC Corporation
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing system and method including wavele...
- Patent number 9,722,700
- Issue date Aug 1, 2017
- NEC Corporation
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Iterative decoding for cascaded LDPC and TCM coding
- Patent number 9,337,868
- Issue date May 10, 2016
- NEC Corporation
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical spectral shaping for nonlinearity enhancement in high speed...
- Patent number 9,337,923
- Issue date May 10, 2016
- NEC Corporation
- Lei Xu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pair-wise symbol correlated high receiver sensitivity modulation fo...
- Patent number 9,203,519
- Issue date Dec 1, 2015
- NEC Laboratories America, Inc.
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization-switched differential ternary phase-shift keying
- Patent number 9,130,679
- Issue date Sep 8, 2015
- NEC Laboratories America, Inc.
- Ezra Ip
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Generation of polarization-alternated QPSK format
- Patent number 9,077,484
- Issue date Jul 7, 2015
- NEC Laboratories America, Inc.
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization switching for optical fiber communications
- Patent number 8,917,998
- Issue date Dec 23, 2014
- NEC Laboratories America, Inc.
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple-symbol polarization switching for differential-detection m...
- Patent number 8,873,953
- Issue date Oct 28, 2014
- NEC Laboratories America, Inc.
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization-alternating optical signal generation using CSRZ modul...
- Patent number 8,787,709
- Issue date Jul 22, 2014
- NEC Laboratories America, Inc.
- Fatih Yaman
- G02 - OPTICS
Information Patent Grant
Optical amplifying and relaying system
- Patent number 7,123,405
- Issue date Oct 17, 2006
- NEC Corporation
- Ryu Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying and relaying system
- Patent number 6,868,204
- Issue date Mar 15, 2005
- NEC Corporation
- Ryu Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying and relaying system
- Patent number 6,845,192
- Issue date Jan 18, 2005
- NEC Corporation
- Ryu Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light limiter
- Patent number 6,539,153
- Issue date Mar 25, 2003
- NEC Corporation
- Yasuhisa Taneda
- G02 - OPTICS
Information Patent Grant
Light limiter
- Patent number 6,233,385
- Issue date May 15, 2001
- NEC Corporation
- Yasuhisa Taneda
- G02 - OPTICS
Information Patent Grant
Optical fuse
- Patent number 6,218,658
- Issue date Apr 17, 2001
- NEC Corporation
- Yasuhisa Taneda
- G02 - OPTICS
Information Patent Grant
Light intensity attenuator and attenuating method
- Patent number 6,134,372
- Issue date Oct 17, 2000
- Sumitomo Osaka Cement Co., Ltd.
- Junichiro Ichikawa
- G02 - OPTICS
Information Patent Grant
Optical surge preventing method and system for use with or in a rar...
- Patent number 6,064,514
- Issue date May 16, 2000
- NEC Corporation
- Yasuhiro Aoki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical receiver board, optical wavelength-tuning filter module use...
- Patent number 6,043,922
- Issue date Mar 28, 2000
- NEC Corporation
- Tadashi Koga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing optical transmission system and wa...
- Patent number 5,956,166
- Issue date Sep 21, 1999
- NEC Corporation
- Takaaki Ogata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variable wavelength optical filter
- Patent number 5,781,332
- Issue date Jul 14, 1998
- NEC Corporation
- Takaaki Ogata
- G02 - OPTICS
Information Patent Grant
Wavelength division multiplexing lightwave transmission system
- Patent number 5,739,934
- Issue date Apr 14, 1998
- NEC Corporation
- Kenichi Nomura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication method
- Patent number 5,442,476
- Issue date Aug 15, 1995
- NEC Corporation
- Shuntaro Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ACCURATE MEASUREMENT FOR GUIDED ACOUSTIC-WAVE BRILLOUIN SCATTERING
- Publication number 20220278748
- Publication date Sep 1, 2022
- NEC Laboratories America, Inc.
- Fatih YAMAN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL FIBER EXHIBITING LOW GUIDED ACOUSTIC BRILLOUIN SCATTERING (...
- Publication number 20220173808
- Publication date Jun 2, 2022
- NEC Laboratories America, Inc.
- Fatih YAMAN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ESTIMATING MODE FIELD DISTRIBUTION IN OPTICAL FIBERS FROM GUIDED AC...
- Publication number 20220011195
- Publication date Jan 13, 2022
- NEC Laboratories America, Inc.
- Fatih YAMAN
- G01 - MEASURING TESTING
Information Patent Application
SEMICONDUCTOR AMPLIFIER WITH LOW POLARIATION-DEPENDENT GAIN
- Publication number 20200403383
- Publication date Dec 24, 2020
- NEC Laboratories America, Inc.
- Fatih YAMAN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIBER NONLINEARITY MITIGATION USING STRONG MODE COUPLING AND LARGE...
- Publication number 20190107671
- Publication date Apr 11, 2019
- NEC Laboratories America, Inc.
- Fatih YAMAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
3D WAVEGUIDE FOR EFFICIENT COUPLING OF MULTIMODE PUMP AND SIGNALS T...
- Publication number 20180109067
- Publication date Apr 19, 2018
- NEC Laboratories America, Inc.
- Fatih Yaman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CONSTELLATION DESIGN FOR USE IN COMMUNICATION SYSTEMS
- Publication number 20170353247
- Publication date Dec 7, 2017
- NEC Laboratories America, Inc.
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Constellation Designs With Non-Gray Bit Mapping
- Publication number 20160285668
- Publication date Sep 29, 2016
- NEC Laboratories America, Inc.
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DIVISION MULTIPLEXING SYSTEM AND METHOD INCLUDING WAVELE...
- Publication number 20160028504
- Publication date Jan 28, 2016
- NEC Laboratories America, Inc.
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Iterative Decoding for Cascaded LDPC and TCM Coding
- Publication number 20150026541
- Publication date Jan 22, 2015
- NEC Laboratories America, Inc.
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GENERATION OF POLARIZATION-ALTERNATED QPSK FORMAT
- Publication number 20140178071
- Publication date Jun 26, 2014
- NEC Laboratories America, Inc.
- Shaoliang ZHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Pair-wise Symbol Correlated High Receiver Sensitivity Modulation Fo...
- Publication number 20140099126
- Publication date Apr 10, 2014
- NEC Laboratories America, Inc.
- Fatih Ioanna Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical Spectral Shaping for Nonlinearity Enhancement in High Speed...
- Publication number 20130094851
- Publication date Apr 18, 2013
- NEC Corporation
- Lei Xu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Polarization Switching for Optical Fiber Communications
- Publication number 20130089327
- Publication date Apr 11, 2013
- NEC Corporation
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multiple-Symbol Polarization Switching for Differential-Detection M...
- Publication number 20120321303
- Publication date Dec 20, 2012
- NEC Laboratories America, Inc.
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Coherent Interleaved Polarization-Multiplexing Optical Communicatio...
- Publication number 20120321311
- Publication date Dec 20, 2012
- NEC Laboratories America, Inc.
- Shaoliang Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Polarization-Alternating Optical Signal Generation using CSRZ Modul...
- Publication number 20120251028
- Publication date Oct 4, 2012
- NEC Laboratories America, Inc.
- Fatih Yaman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifying and relaying system
- Publication number 20040161244
- Publication date Aug 19, 2004
- NEC Corporation
- Ryu Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifying and relaying system
- Publication number 20040161191
- Publication date Aug 19, 2004
- NEC Corporation
- Ryu Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifying and relaying system
- Publication number 20020131696
- Publication date Sep 19, 2002
- Ryu Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light limiter
- Publication number 20010012431
- Publication date Aug 9, 2001
- NEC Corporation
- Yasuhisa Taneda
- G02 - OPTICS

Takaaki Ogata

Person

Patents Grantslast 30 patents

Accurate measurement for guided acoustic-wave Brillouin scattering

Estimating mode field distribution in optical fibers from guided ac...

3D waveguide for efficient coupling of multimode pump and signals t...

Fiber nonlinearity mitigation using strong mode coupling and large...

Constellation designs with non-gray bit mapping

Wavelength division multiplexing system and method including wavele...

Iterative decoding for cascaded LDPC and TCM coding

Optical spectral shaping for nonlinearity enhancement in high speed...

Pair-wise symbol correlated high receiver sensitivity modulation fo...

Polarization-switched differential ternary phase-shift keying

Generation of polarization-alternated QPSK format

Polarization switching for optical fiber communications

Multiple-symbol polarization switching for differential-detection m...

Polarization-alternating optical signal generation using CSRZ modul...

Optical amplifying and relaying system

Optical amplifying and relaying system

Optical amplifying and relaying system

Light limiter

Light limiter

Optical fuse

Light intensity attenuator and attenuating method

Optical surge preventing method and system for use with or in a rar...

Optical receiver board, optical wavelength-tuning filter module use...

Wavelength division multiplexing optical transmission system and wa...

Variable wavelength optical filter

Wavelength division multiplexing lightwave transmission system

Optical communication method

Patents Applicationslast 30 patents

ACCURATE MEASUREMENT FOR GUIDED ACOUSTIC-WAVE BRILLOUIN SCATTERING

OPTICAL FIBER EXHIBITING LOW GUIDED ACOUSTIC BRILLOUIN SCATTERING (...

ESTIMATING MODE FIELD DISTRIBUTION IN OPTICAL FIBERS FROM GUIDED AC...

SEMICONDUCTOR AMPLIFIER WITH LOW POLARIATION-DEPENDENT GAIN

FIBER NONLINEARITY MITIGATION USING STRONG MODE COUPLING AND LARGE...

3D WAVEGUIDE FOR EFFICIENT COUPLING OF MULTIMODE PUMP AND SIGNALS T...

CONSTELLATION DESIGN FOR USE IN COMMUNICATION SYSTEMS

Constellation Designs With Non-Gray Bit Mapping

WAVELENGTH DIVISION MULTIPLEXING SYSTEM AND METHOD INCLUDING WAVELE...

Iterative Decoding for Cascaded LDPC and TCM Coding

GENERATION OF POLARIZATION-ALTERNATED QPSK FORMAT

Pair-wise Symbol Correlated High Receiver Sensitivity Modulation Fo...

Optical Spectral Shaping for Nonlinearity Enhancement in High Speed...

Polarization Switching for Optical Fiber Communications

Multiple-Symbol Polarization Switching for Differential-Detection M...

Coherent Interleaved Polarization-Multiplexing Optical Communicatio...

Polarization-Alternating Optical Signal Generation using CSRZ Modul...

Optical amplifying and relaying system

Optical amplifying and relaying system

Optical amplifying and relaying system

Light limiter