Tomoyuki Kato

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength conversion device, transmission device, and transmission...
- Patent number 11,799,579
- Issue date Oct 24, 2023
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength converter, optical transmission system and wavelength co...
- Patent number 11,789,204
- Issue date Oct 17, 2023
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication device, optical transmission system, waveleng...
- Patent number 11,668,870
- Issue date Jun 6, 2023
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Wavelength converter and optical transmission device that includes...
- Patent number 11,588,572
- Issue date Feb 21, 2023
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission device, transmission method, and transmission system
- Patent number 11,533,548
- Issue date Dec 20, 2022
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength conversion device and wavelength conversion method
- Patent number 11,460,752
- Issue date Oct 4, 2022
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Wavelength converter and fiber optic transmission system
- Patent number 11,387,912
- Issue date Jul 12, 2022
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Wavelength conversion device and wavelength conversion method
- Patent number 11,368,239
- Issue date Jun 21, 2022
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength converter and optical transmission device that includes...
- Patent number 11,190,292
- Issue date Nov 30, 2021
- Fujitsu Limited
- Tomoyuki Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wavelength conversion device and method of performing wavelength co...
- Patent number 11,163,119
- Issue date Nov 2, 2021
- Fujitsu Limited
- Tomohiro Yamauchi
- G02 - OPTICS
Information Patent Grant
Transmission apparatus and transmission method
- Patent number 10,972,188
- Issue date Apr 6, 2021
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength converter and transmission apparatus
- Patent number 10,955,727
- Issue date Mar 23, 2021
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Wavelength converter apparatus and method of performing wavelength...
- Patent number 10,948,802
- Issue date Mar 16, 2021
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical phase distortion compensating device and method of compensa...
- Patent number 10,749,604
- Issue date Aug 18, 2020
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus, reception apparatus, and method for estimat...
- Patent number 10,720,992
- Issue date Jul 21, 2020
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus, optical transmission method, and op...
- Patent number 10,608,775
- Issue date Mar 31, 2020
- Fujitsu Limited
- Shinji Komiya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wavelength conversion device, control-light generation device, wave...
- Patent number 10,429,721
- Issue date Oct 1, 2019
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Wavelength conversion device, control-light generation device, wave...
- Patent number 10,281,798
- Issue date May 7, 2019
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Location measurement apparatus, light modulation converter, and lig...
- Patent number 10,193,621
- Issue date Jan 29, 2019
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Load driving controller
- Patent number 10,156,296
- Issue date Dec 18, 2018
- Fujitsu Limited
- Tomohito Kato
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Optical add/drop multiplexer and method for adding/dropping optical...
- Patent number 9,929,828
- Issue date Mar 27, 2018
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency shift device and method
- Patent number 9,857,662
- Issue date Jan 2, 2018
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Relay device and optical network system
- Patent number 9,780,880
- Issue date Oct 3, 2017
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Optical frequency shifter, single sideband modulator, and light ins...
- Patent number 9,746,699
- Issue date Aug 29, 2017
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Optical add-drop multiplexer
- Patent number 9,634,787
- Issue date Apr 25, 2017
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical drop device, optical drop method, and optical add device
- Patent number 9,450,699
- Issue date Sep 20, 2016
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal transmitting device, optical signal transmitting met...
- Patent number 9,148,228
- Issue date Sep 29, 2015
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency-division multiplexer, optical communication syste...
- Patent number 9,106,354
- Issue date Aug 11, 2015
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical network system, optical multiplexing apparatus, and receivi...
- Patent number 9,106,359
- Issue date Aug 11, 2015
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitting apparatus, receiving apparatus, optical frequency divi...
- Patent number 9,088,383
- Issue date Jul 21, 2015
- Fujitsu Limited
- Toshiki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20240103338
- Publication date Mar 28, 2024
- Fujitsu Limited
- Tomoyuki KATO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERSION DEVICE AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20240106560
- Publication date Mar 28, 2024
- Fujitsu Limited
- Hidenobu MURANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERSION DEVICE, TRANSMISSION DEVICE, AND TRANSMISSION...
- Publication number 20220271857
- Publication date Aug 25, 2022
- Fujitsu Limited
- Tomohiro YAMAUCHI
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER, OPTICAL TRANSMISSION SYSTEM AND WAVELENGTH CO...
- Publication number 20220229238
- Publication date Jul 21, 2022
- Fujitsu Limited
- Tomoyuki KATO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERTER AND FIBER OPTIC TRANSMISSION SYSTEM
- Publication number 20220158741
- Publication date May 19, 2022
- Fujitsu Limited
- Goji NAKAGAWA
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERSION DEVICE AND WAVELENGTH CONVERSION METHOD
- Publication number 20220077949
- Publication date Mar 10, 2022
- Fujitsu Limited
- Tomoyuki KATO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION DEVICE, TRANSMISSION METHOD, AND TRANSMISSION SYSTEM
- Publication number 20220070555
- Publication date Mar 3, 2022
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...
- Publication number 20220060273
- Publication date Feb 24, 2022
- Fujitsu Limited
- Tomoyuki Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WAVELENGTH CONVERSION DEVICE AND WAVELENGTH CONVERSION METHOD
- Publication number 20210286228
- Publication date Sep 16, 2021
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER, OPTICAL COMMUNICATION SYSTEM, AND METHOD FOR...
- Publication number 20210103200
- Publication date Apr 8, 2021
- Fujitsu Limited
- GOJI NAKAGAWA
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERSION DEVICE AND METHOD OF PERFORMING WAVELENGTH CO...
- Publication number 20200379180
- Publication date Dec 3, 2020
- FUJITSU LIMITED, Kawasaki-shi, JAPAN;
- Tomohiro YAMAUCHI
- G02 - OPTICS
Information Patent Application
OPTICAL COMMUNICATION DEVICE, OPTICAL TRANSMISSION SYSTEM, WAVELENG...
- Publication number 20200271855
- Publication date Aug 27, 2020
- Fujitsu Limited
- Tomoyuki KATO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERTER AND TRANSMISSION APPARATUS
- Publication number 20200264492
- Publication date Aug 20, 2020
- Fujitsu Limited
- GOJI NAKAGAWA
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER AND METHOD OF PERFORMING WAVELENGTH CONVERSION
- Publication number 20200241384
- Publication date Jul 30, 2020
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION DEVICE AND TRANSMISSION METHOD
- Publication number 20200059313
- Publication date Feb 20, 2020
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION METHOD, AND OP...
- Publication number 20190349113
- Publication date Nov 14, 2019
- Fujitsu Limited
- Shinji Komiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL PHASE DISTORTION COMPENSATING DEVICE AND METHOD OF COMPENSA...
- Publication number 20190326999
- Publication date Oct 24, 2019
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION APPARATUS AND TRANSMISSION METHOD
- Publication number 20190305852
- Publication date Oct 3, 2019
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...
- Publication number 20190212631
- Publication date Jul 11, 2019
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...
- Publication number 20190109666
- Publication date Apr 11, 2019
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION APPARATUS, RECEPTION APPARATUS, AND METHOD FOR ESTIMAT...
- Publication number 20180375580
- Publication date Dec 27, 2018
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOCATION MEASUREMENT APPARATUS, LIGHT MODULATION CONVERTER, AND LIG...
- Publication number 20180316422
- Publication date Nov 1, 2018
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...
- Publication number 20180307119
- Publication date Oct 25, 2018
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
LOAD DRIVING CONTROLLER
- Publication number 20180142800
- Publication date May 24, 2018
- FUJITSU TEN LIMITED
- Tomohito KATO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL FREQUENCY SHIFT DEVICE AND METHOD
- Publication number 20170307957
- Publication date Oct 26, 2017
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
OPTICAL MULTIPLEXING DEVICE AND OPTICAL MULTIPLEXING NETWORK SYSTEM
- Publication number 20170250775
- Publication date Aug 31, 2017
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...
- Publication number 20170070313
- Publication date Mar 9, 2017
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD-DROP MULTIPLEXER
- Publication number 20160373206
- Publication date Dec 22, 2016
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL FREQUENCY SHIFTER, SINGLE SIDEBAND MODULATOR, AND LIGHT INS...
- Publication number 20160306199
- Publication date Oct 20, 2016
- Fujitsu Limited
- Tomoyuki KATO
- G02 - OPTICS
Information Patent Application
OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...
- Publication number 20160285582
- Publication date Sep 29, 2016
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tomoyuki Kato

Person

Patents Grantslast 30 patents

Wavelength conversion device, transmission device, and transmission...

Wavelength converter, optical transmission system and wavelength co...

Optical communication device, optical transmission system, waveleng...

Wavelength converter and optical transmission device that includes...

Transmission device, transmission method, and transmission system

Wavelength conversion device and wavelength conversion method

Wavelength converter and fiber optic transmission system

Wavelength conversion device and wavelength conversion method

Wavelength converter and optical transmission device that includes...

Wavelength conversion device and method of performing wavelength co...

Transmission apparatus and transmission method

Wavelength converter and transmission apparatus

Wavelength converter apparatus and method of performing wavelength...

Optical phase distortion compensating device and method of compensa...

Transmission apparatus, reception apparatus, and method for estimat...

Optical transmission apparatus, optical transmission method, and op...

Wavelength conversion device, control-light generation device, wave...

Wavelength conversion device, control-light generation device, wave...

Location measurement apparatus, light modulation converter, and lig...

Load driving controller

Optical add/drop multiplexer and method for adding/dropping optical...

Optical frequency shift device and method

Relay device and optical network system

Optical frequency shifter, single sideband modulator, and light ins...

Optical add-drop multiplexer

Optical drop device, optical drop method, and optical add device

Optical signal transmitting device, optical signal transmitting met...

Optical frequency-division multiplexer, optical communication syste...

Optical network system, optical multiplexing apparatus, and receivi...

Transmitting apparatus, receiving apparatus, optical frequency divi...

Patents Applicationslast 30 patents

WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION SYSTEM

WAVELENGTH CONVERSION DEVICE AND OPTICAL TRANSMISSION SYSTEM

WAVELENGTH CONVERSION DEVICE, TRANSMISSION DEVICE, AND TRANSMISSION...

WAVELENGTH CONVERTER, OPTICAL TRANSMISSION SYSTEM AND WAVELENGTH CO...

WAVELENGTH CONVERTER AND FIBER OPTIC TRANSMISSION SYSTEM

WAVELENGTH CONVERSION DEVICE AND WAVELENGTH CONVERSION METHOD

TRANSMISSION DEVICE, TRANSMISSION METHOD, AND TRANSMISSION SYSTEM

WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...

WAVELENGTH CONVERSION DEVICE AND WAVELENGTH CONVERSION METHOD

WAVELENGTH CONVERTER, OPTICAL COMMUNICATION SYSTEM, AND METHOD FOR...

WAVELENGTH CONVERSION DEVICE AND METHOD OF PERFORMING WAVELENGTH CO...

OPTICAL COMMUNICATION DEVICE, OPTICAL TRANSMISSION SYSTEM, WAVELENG...

WAVELENGTH CONVERTER AND TRANSMISSION APPARATUS

WAVELENGTH CONVERTER AND METHOD OF PERFORMING WAVELENGTH CONVERSION

TRANSMISSION DEVICE AND TRANSMISSION METHOD

OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION METHOD, AND OP...

OPTICAL PHASE DISTORTION COMPENSATING DEVICE AND METHOD OF COMPENSA...

TRANSMISSION APPARATUS AND TRANSMISSION METHOD

WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...

WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...

TRANSMISSION APPARATUS, RECEPTION APPARATUS, AND METHOD FOR ESTIMAT...

LOCATION MEASUREMENT APPARATUS, LIGHT MODULATION CONVERTER, AND LIG...

WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...

LOAD DRIVING CONTROLLER

OPTICAL FREQUENCY SHIFT DEVICE AND METHOD

OPTICAL MULTIPLEXING DEVICE AND OPTICAL MULTIPLEXING NETWORK SYSTEM

OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...

OPTICAL ADD-DROP MULTIPLEXER

OPTICAL FREQUENCY SHIFTER, SINGLE SIDEBAND MODULATOR, AND LIGHT INS...

OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...