Tomohiro YAMAUCHI

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmission system and optical transmission device
- Patent number 11,990,988
- Issue date May 21, 2024
- Fujitsu Limited
- Naoki Ainaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
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
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 excitation light switching method
- Patent number 11,243,349
- Issue date Feb 8, 2022
- Fujitsu Limited
- Tomohiro Yamauchi
- G02 - OPTICS
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
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
Receiver and receiving method
- Patent number 10,554,325
- Issue date Feb 4, 2020
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitter, optical transmission apparatus, and optical mo...
- Patent number 10,425,166
- Issue date Sep 24, 2019
- Fujitsu Limited
- Tomohiro Yamauchi
- G02 - OPTICS
Information Patent Grant
Network control apparatus and transmission quality margin calculati...
- Patent number 10,177,843
- Issue date Jan 8, 2019
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus, optical transmission system, and me...
- Patent number 9,923,632
- Issue date Mar 20, 2018
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver and superimposed signal detecting method
- Patent number 9,838,148
- Issue date Dec 5, 2017
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission system and transmission method
- Patent number 9,780,905
- Issue date Oct 3, 2017
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver that has function to detect signal superimposed on...
- Patent number 9,698,929
- Issue date Jul 4, 2017
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Measurement apparatus and method of measuring signal light quality
- Patent number 9,638,574
- Issue date May 2, 2017
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of manufacturing bipolar transistor with self-aligned base r...
- Patent number 5,213,988
- Issue date May 25, 1993
- Kabushiki Kaisha Toshiba
- Tomohiro Yamauchi
- H01 - BASIC ELECTRIC ELEMENTS

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 OPTICAL TRANSMISSION DEVICE
- Publication number 20220385390
- Publication date Dec 1, 2022
- Fujitsu Limited
- Naoki AINAKA
- 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
WAVELENGTH CONVERSION DEVICE, TRANSMISSION DEVICE, AND TRANSMISSION...
- Publication number 20220271857
- Publication date Aug 25, 2022
- Fujitsu Limited
- Tomohiro YAMAUCHI
- G02 - OPTICS
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, 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
WAVELENGTH CONVERSION DEVICE AND EXCITATION LIGHT SWITCHING METHOD
- Publication number 20200200973
- Publication date Jun 25, 2020
- Fujitsu Limited
- Tomohiro YAMAUCHI
- G02 - OPTICS
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
TRANSMITTER, RECEIVER, AND TRANSMIT METHOD
- Publication number 20190089479
- Publication date Mar 21, 2019
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER, OPTICAL TRANSMISSION APPARATUS, AND OPTICAL MO...
- Publication number 20190020418
- Publication date Jan 17, 2019
- Fujitsu Limited
- Tomohiro YAMAUCHI
- G02 - OPTICS
Information Patent Application
NETWORK CONTROL APPARATUS AND TRANSMISSION QUALITY MARGIN CALCULATI...
- Publication number 20170302372
- Publication date Oct 19, 2017
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND ME...
- Publication number 20170214461
- Publication date Jul 27, 2017
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, NETWORK CONTROL APPARATUS, AND OPTI...
- Publication number 20170149497
- Publication date May 25, 2017
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER AND SUPERIMPOSED SIGNAL DETECTING METHOD
- Publication number 20160337070
- Publication date Nov 17, 2016
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER THAT HAS FUNCTION TO DETECT SIGNAL SUPERIMPOSED ON...
- Publication number 20160277139
- Publication date Sep 22, 2016
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION SYSTEM AND TRANSMISSION METHOD
- Publication number 20160087746
- Publication date Mar 24, 2016
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MEASUREMENT APPARATUS AND METHOD OF MEASURING SIGNAL LIGHT QUALITY
- Publication number 20150330835
- Publication date Nov 19, 2015
- Fujitsu Limited
- Tomohiro Yamauchi
- G01 - MEASURING TESTING

Tomohiro YAMAUCHI

Person

Patents Grantslast 30 patents

Optical transmission system and optical transmission device

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

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

Transmission device, transmission method, and transmission system

Wavelength conversion device and excitation light switching method

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

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

Receiver and receiving method

Optical transmitter, optical transmission apparatus, and optical mo...

Network control apparatus and transmission quality margin calculati...

Optical transmission apparatus, optical transmission system, and me...

Optical receiver and superimposed signal detecting method

Transmission system and transmission method

Optical receiver that has function to detect signal superimposed on...

Measurement apparatus and method of measuring signal light quality

Method of manufacturing bipolar transistor with self-aligned base r...

Patents Applicationslast 30 patents

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

OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION DEVICE

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

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

TRANSMISSION DEVICE, TRANSMISSION METHOD, AND TRANSMISSION SYSTEM

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

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

WAVELENGTH CONVERSION DEVICE AND EXCITATION LIGHT SWITCHING METHOD

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

TRANSMITTER, RECEIVER, AND TRANSMIT METHOD

OPTICAL TRANSMITTER, OPTICAL TRANSMISSION APPARATUS, AND OPTICAL MO...

NETWORK CONTROL APPARATUS AND TRANSMISSION QUALITY MARGIN CALCULATI...

OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND ME...

OPTICAL TRANSMISSION APPARATUS, NETWORK CONTROL APPARATUS, AND OPTI...

OPTICAL RECEIVER AND SUPERIMPOSED SIGNAL DETECTING METHOD

OPTICAL RECEIVER THAT HAS FUNCTION TO DETECT SIGNAL SUPERIMPOSED ON...

TRANSMISSION SYSTEM AND TRANSMISSION METHOD

MEASUREMENT APPARATUS AND METHOD OF MEASURING SIGNAL LIGHT QUALITY