Masayuki Izutsu

Person

Koganei-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical switch system using optical interference
- Patent number 8,270,780
- Issue date Sep 18, 2012
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
Frequency shift keying demodulator
- Patent number 8,170,422
- Issue date May 1, 2012
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Super flat optical frequency comb signal generator
- Patent number 8,023,775
- Issue date Sep 20, 2011
- National Institute of Information and Communications Technology
- Takahide Sakamoto
- G02 - OPTICS
Information Patent Grant
Modulation light signal generating device and FSK modulation signal...
- Patent number 8,014,684
- Issue date Sep 6, 2011
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-wavelength signal generation device and multi-wavelength ligh...
- Patent number 8,005,371
- Issue date Aug 23, 2011
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
DSB-SC modulation system capable of erasing carrier and secondary c...
- Patent number 7,991,298
- Issue date Aug 2, 2011
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple wavelength light source, and generation method for multipl...
- Patent number 7,962,039
- Issue date Jun 14, 2011
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical FSK/SSB modulator having intensity balance function
- Patent number 7,957,652
- Issue date Jun 7, 2011
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase control optical FSK modulator
- Patent number 7,957,653
- Issue date Jun 7, 2011
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic adjusting system of frequency shift keying modulator
- Patent number 7,936,996
- Issue date May 3, 2011
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device for calibrating a light intensity measurement device
- Patent number 7,864,330
- Issue date Jan 4, 2011
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G01 - MEASURING TESTING
Information Patent Grant
Fourth harmonic generating system using optical double side-band su...
- Patent number 7,853,153
- Issue date Dec 14, 2010
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplitude modulation system capable of cancelling high orde...
- Patent number 7,711,215
- Issue date May 4, 2010
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
Nested modulator
- Patent number 7,689,067
- Issue date Mar 30, 2010
- Sumitomo Osaka Cement Co., Ltd.
- Junichiro Ichikawa
- G02 - OPTICS
Information Patent Grant
Reciprocating optical modulation system
- Patent number 7,660,030
- Issue date Feb 9, 2010
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
UWB signal generator using optical FSK modulator
- Patent number 7,555,223
- Issue date Jun 30, 2009
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency shift keying modulator
- Patent number 7,526,209
- Issue date Apr 28, 2009
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple-wavelength optical modulation apparatus
- Patent number 7,522,844
- Issue date Apr 21, 2009
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Photoelectric oscillator
- Patent number 7,425,696
- Issue date Sep 16, 2008
- National Institute of Information and Communications Technology Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multiplexing FSK modulation method
- Patent number 7,421,209
- Issue date Sep 2, 2008
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bias adjustment method for optical SSB modulator or optical FSK mod...
- Patent number 7,245,787
- Issue date Jul 17, 2007
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical SSB modulator
- Patent number 7,239,763
- Issue date Jul 3, 2007
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
Tunable dispersion compensation apparatus
- Patent number 7,236,661
- Issue date Jun 26, 2007
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reciprocating optical modulator
- Patent number 7,212,331
- Issue date May 1, 2007
- National Institute of Information and Communications Technology, Incorporated...
- Tetsuya Kawanishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low-noise optical frequency converter
- Patent number 7,106,497
- Issue date Sep 12, 2006
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
Method and apparatus for measuring three-dimensional distribution o...
- Patent number 7,084,649
- Issue date Aug 1, 2006
- Communications Research Laboratory, Independent Administrative Institution
- Tetsuya Kawanishi
- G01 - MEASURING TESTING
Information Patent Grant
Variable-optical-delay apparatus
- Patent number 6,987,904
- Issue date Jan 17, 2006
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
Method and circuit for generating single-sideband optical signal
- Patent number 6,970,655
- Issue date Nov 29, 2005
- NEC Corporation
- Takashi Ono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Resonance type optical modulator using symmetric or asymmetric elec...
- Patent number 6,791,733
- Issue date Sep 14, 2004
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Grant
Optical modulator and optical signal and electric wave signal conve...
- Patent number 6,788,832
- Issue date Sep 7, 2004
- Communications Research Laboratory, Independent Administrative Institution
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Super Flat Optical Frequency Comb Signal Generator
- Publication number 20110097029
- Publication date Apr 28, 2011
- National Institute of Information and Communications Technology
- Takahide Sakamoto
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH SYSTEM USING OPTICAL INTERFERENCE
- Publication number 20100150495
- Publication date Jun 17, 2010
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
PHASE CONTROL OPTICAL FSK MODULATOR
- Publication number 20100014874
- Publication date Jan 21, 2010
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SUPER FLAT OPTICAL FREQUENCY COM SIGNAL GENERATOR
- Publication number 20090310900
- Publication date Dec 17, 2009
- National Institute of Information and Communicat- ions Technology
- Takahide Sakamoto
- G02 - OPTICS
Information Patent Application
MULTIPLE WAVELENGTH LIGHT SOURCE, AND GENERATION METHOD FOR MULTIPL...
- Publication number 20090310968
- Publication date Dec 17, 2009
- NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECH. INCOR. ADMINISTRAT...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND DEVICE FOR CALIBRATING A LIGHT INTENSITY MEASUREMENT DEVICE
- Publication number 20090290148
- Publication date Nov 26, 2009
- National Institute of Information and Communications Technology
- Tetsuya Kawanishi
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL FSK/SSB MODULATOR HAVING INTENSITY BALANCE FUNCTION
- Publication number 20090279825
- Publication date Nov 12, 2009
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AMPLITUDE MODULATION SYSTEM CAPABLE OF CANCELLING HIGH ORDE...
- Publication number 20090238510
- Publication date Sep 24, 2009
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
DSB-SC MODULATION SYSTEM CAPABLE OF ERASING CARRIER AND SECONDARY C...
- Publication number 20090232440
- Publication date Sep 17, 2009
- National Institute of Information and Communications
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RECIPROCATING OPTICAL MODULATION SYSTEM
- Publication number 20090103163
- Publication date Apr 23, 2009
- National Institute of Information and Communivations Technology
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
FOURTH HARMONIC GENERATING SYSTEM USING OPTICAL DOUBLE SIDE-BAND SU...
- Publication number 20090103924
- Publication date Apr 23, 2009
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTOMATIC ADJUSTING SYSTEM OF FREQUENCY SHIFT KEYING MODULATOR
- Publication number 20090041472
- Publication date Feb 12, 2009
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multi-wavelength signal generation device and multi -wavelength lig...
- Publication number 20090041470
- Publication date Feb 12, 2009
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Frequency Shift Keying Demodulator
- Publication number 20080304827
- Publication date Dec 11, 2008
- National Institute of Information and Communications Technology, Incorporated
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Nested modulator
- Publication number 20080212915
- Publication date Sep 4, 2008
- Sumitomo Osaka Cement Co., Ltd.
- Junichiro Ichikawa
- G02 - OPTICS
Information Patent Application
Modulation Light Signal Generating Device and Fsk Modulation Signal...
- Publication number 20080159754
- Publication date Jul 3, 2008
- NATIONAL INSTITUTE OF INFORMATION & COMMUNICATIONS TECHNOLOGY, INCORPORATED A...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reciprocating optical modulator
- Publication number 20060227411
- Publication date Oct 12, 2006
- Nat. Inst. of Info. & Comm. Tech., Inc. Adm Agency
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
Multiple-wavelength optical modulation apparatus
- Publication number 20050238366
- Publication date Oct 27, 2005
- Nat Inst of Info & Comm Tech Inc Admin Inst
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Tunable dispersion compensation apparatus
- Publication number 20050226554
- Publication date Oct 13, 2005
- Nat Inst of Info & Comm Tech Inc Admin Inst
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical SSB modulator
- Publication number 20050220385
- Publication date Oct 6, 2005
- NATIONAL INSTITUTE OF INFORMATION & COMMUNICATIONS TECHNOLOGY, INCORPORATED A...
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
Photoelectric oscillator
- Publication number 20050211875
- Publication date Sep 29, 2005
- Nat Inst of Info & Comm Tech Inc Admin Inst
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bias adjustment method for optical SSB modulator or optical FSK mod...
- Publication number 20050213862
- Publication date Sep 29, 2005
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical wavelength multiplexing FSK modulation method
- Publication number 20050180761
- Publication date Aug 18, 2005
- NATIONAL INSTITUTE OF INFORMATION & COMMUNICATIONS TECHNOLOGY, INCORPORATED A...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
UWB signal generator using optical FSK modulator
- Publication number 20050175357
- Publication date Aug 11, 2005
- NATIONAL INSTITUTE OF INFORMATION & COMMUNICATIONS TECHNOLOGY, INCORPORATED A...
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical frequency shift keying modulator
- Publication number 20050111853
- Publication date May 26, 2005
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for measuring three-dimensional distribution o...
- Publication number 20040130341
- Publication date Jul 8, 2004
- Communications Res., Lab., Ind. Admin. Inst.
- Tetsuya Kawanishi
- G01 - MEASURING TESTING
Information Patent Application
Low-noise optical frequency converter
- Publication number 20040085620
- Publication date May 6, 2004
- Communications Res. Lab., Ind Admin. Inst
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
Variable-optical-delay apparatus
- Publication number 20030190119
- Publication date Oct 9, 2003
- Communications Res. Lab., Ind. Admin. Inst.
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
Resonator-type semiconductor optical modulator with asymmetrical el...
- Publication number 20030156312
- Publication date Aug 21, 2003
- Communications Research Lab., Ind. Admin. Inst.
- Tetsuya Kawanishi
- G02 - OPTICS
Information Patent Application
Optical modulator and optical signal and electric wave signal conve...
- Publication number 20030128417
- Publication date Jul 10, 2003
- Communications Res. Lab., Ind. Admin. Inst.
- Tetsuya Kawanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masayuki Izutsu

Person

Patents Grantslast 30 patents

Optical switch system using optical interference

Frequency shift keying demodulator

Super flat optical frequency comb signal generator

Modulation light signal generating device and FSK modulation signal...

Multi-wavelength signal generation device and multi-wavelength ligh...

DSB-SC modulation system capable of erasing carrier and secondary c...

Multiple wavelength light source, and generation method for multipl...

Optical FSK/SSB modulator having intensity balance function

Phase control optical FSK modulator

Automatic adjusting system of frequency shift keying modulator

Method and device for calibrating a light intensity measurement device

Fourth harmonic generating system using optical double side-band su...

Optical amplitude modulation system capable of cancelling high orde...

Nested modulator

Reciprocating optical modulation system

UWB signal generator using optical FSK modulator

Optical frequency shift keying modulator

Multiple-wavelength optical modulation apparatus

Photoelectric oscillator

Optical wavelength multiplexing FSK modulation method

Bias adjustment method for optical SSB modulator or optical FSK mod...

Optical SSB modulator

Tunable dispersion compensation apparatus

Reciprocating optical modulator

Low-noise optical frequency converter

Method and apparatus for measuring three-dimensional distribution o...

Variable-optical-delay apparatus

Method and circuit for generating single-sideband optical signal

Resonance type optical modulator using symmetric or asymmetric elec...

Optical modulator and optical signal and electric wave signal conve...

Patents Applicationslast 30 patents

Super Flat Optical Frequency Comb Signal Generator

OPTICAL SWITCH SYSTEM USING OPTICAL INTERFERENCE

PHASE CONTROL OPTICAL FSK MODULATOR

SUPER FLAT OPTICAL FREQUENCY COM SIGNAL GENERATOR

MULTIPLE WAVELENGTH LIGHT SOURCE, AND GENERATION METHOD FOR MULTIPL...

METHOD AND DEVICE FOR CALIBRATING A LIGHT INTENSITY MEASUREMENT DEVICE

OPTICAL FSK/SSB MODULATOR HAVING INTENSITY BALANCE FUNCTION

OPTICAL AMPLITUDE MODULATION SYSTEM CAPABLE OF CANCELLING HIGH ORDE...

DSB-SC MODULATION SYSTEM CAPABLE OF ERASING CARRIER AND SECONDARY C...

RECIPROCATING OPTICAL MODULATION SYSTEM

FOURTH HARMONIC GENERATING SYSTEM USING OPTICAL DOUBLE SIDE-BAND SU...

AUTOMATIC ADJUSTING SYSTEM OF FREQUENCY SHIFT KEYING MODULATOR

Multi-wavelength signal generation device and multi -wavelength lig...

Frequency Shift Keying Demodulator

Nested modulator

Modulation Light Signal Generating Device and Fsk Modulation Signal...

Reciprocating optical modulator

Multiple-wavelength optical modulation apparatus

Tunable dispersion compensation apparatus

Optical SSB modulator

Photoelectric oscillator

Bias adjustment method for optical SSB modulator or optical FSK mod...

Optical wavelength multiplexing FSK modulation method

UWB signal generator using optical FSK modulator

Optical frequency shift keying modulator

Method and apparatus for measuring three-dimensional distribution o...

Low-noise optical frequency converter

Variable-optical-delay apparatus

Resonator-type semiconductor optical modulator with asymmetrical el...

Optical modulator and optical signal and electric wave signal conve...