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Shuto YAMAMOTO
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Yokosuka-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical transmission system, control apparatus, optical transmissio...
Patent number
12,184,337
Issue date
Dec 31, 2024
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch
Patent number
12,107,762
Issue date
Oct 1, 2024
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication network management apparatus
Patent number
12,034,484
Issue date
Jul 9, 2024
Nippon Telegraph and Telephone Corporation
Takafumi Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch
Patent number
11,979,694
Issue date
May 7, 2024
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch
Patent number
11,930,309
Issue date
Mar 12, 2024
Nippon Telegraph and Telephone Corporation
Keita Yamaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch and optical network system
Patent number
11,881,897
Issue date
Jan 23, 2024
Nippon Telegraph and Telephone Corporation
Hideki Nishizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical transmitting apparatus and opt...
Patent number
11,855,699
Issue date
Dec 26, 2023
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Symbol judgement apparatus and symbol judgement method
Patent number
11,706,065
Issue date
Jul 18, 2023
Nippon Telegraph and Telephone Corporation
Hiroki Taniguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength dispersion compensation apparatus, optical receiving app...
Patent number
11,683,093
Issue date
Jun 20, 2023
Nippon Telegraph and Telephone Corporation
Masanori Nakamura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical transmission system
Patent number
11,581,944
Issue date
Feb 14, 2023
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical transmission system
Patent number
11,444,694
Issue date
Sep 13, 2022
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical transmission system, optical receiving apparatus and optica...
Patent number
11,444,699
Issue date
Sep 13, 2022
Nippon Telegraph and Telephone Corporation
Akira Masuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Symbol-determining device and symbol determination method
Patent number
11,349,524
Issue date
May 31, 2022
Nippon Telegraph and Telephone Corporation
Hiroki Taniguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital coherent receiver and digital coherent receiving method
Patent number
11,283,528
Issue date
Mar 22, 2022
Nippon Telegraph and Telephone Corporation
Akira Masuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding device and decoding device
Patent number
10,756,819
Issue date
Aug 25, 2020
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding device and decoding device
Patent number
10,693,562
Issue date
Jun 23, 2020
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding device and decoding device
Patent number
10,651,945
Issue date
May 12, 2020
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL AND ELECTRONIC INTEGRATED SWITCH
Publication number
20240422097
Publication date
Dec 19, 2024
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYMBOL DETERMINATION DEVICE AND TAP SELECTION METHOD
Publication number
20230361881
Publication date
Nov 9, 2023
Nippon Telegraph and Telephone Corporation
Hiroki TANIGUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, CONTROL APPARATUS, OPTICAL TRANSMISSIO...
Publication number
20230291482
Publication date
Sep 14, 2023
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL SIGNAL DEMODULATOR, CONTROL METHOD AND PROGRAM
Publication number
20230261759
Publication date
Aug 17, 2023
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch
Publication number
20230136142
Publication date
May 4, 2023
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch and Optical Network System
Publication number
20230082854
Publication date
Mar 16, 2023
Nippon Telegraph and Telephone Corporation
Hideki Nishizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION NETWORK MANAGEMENT APPARATUS
Publication number
20230076671
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Takafumi TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch
Publication number
20230073384
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMITTING APPARATUS AND OPT...
Publication number
20230071063
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch
Publication number
20230060777
Publication date
Mar 2, 2023
Nippon Telegraph and Telephone Corporation
Keita Yamaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH DISPERSION COMPENSATION APPARATUS, OPTICAL RECEIVING APP...
Publication number
20220224415
Publication date
Jul 14, 2022
Nippon Telegraph and Telephone Corporation
Masanori NAKAMURA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SYMBOL JUDGEMENT APPARATUS AND SYMBOL JUDGEMENT METHOD
Publication number
20220224575
Publication date
Jul 14, 2022
Nippon Telegraph and Telephone Corporation
Hiroki TANIGUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL RECEIVING APPARATUS AND OPTICA...
Publication number
20220069921
Publication date
Mar 3, 2022
Nippon Telegraph and Telephone Corporation
Akira MASUDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM
Publication number
20210367670
Publication date
Nov 25, 2021
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM
Publication number
20210367671
Publication date
Nov 25, 2021
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DIGITAL COHERENT RECEIVER AND DIGITAL COHERENT RECEIVING METHOD
Publication number
20210218476
Publication date
Jul 15, 2021
Nippon Telegraph and Telephone Corporation
Akira MASUDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYMBOL-DETERMINING DEVICE AND SYMBOL DETERMINATION METHOD
Publication number
20200389207
Publication date
Dec 10, 2020
Nippon Telegraph and Telephone Corporation
Hiroki TANIGUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Encoding Device And Decoding Device
Publication number
20200244369
Publication date
Jul 30, 2020
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Encoding Device And Decoding Device
Publication number
20200052792
Publication date
Feb 13, 2020
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE