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Yumiko SENOO
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Musashino-shi, Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Wavelength-selection type optical receiving apparatus
Patent number
11,921,333
Issue date
Mar 5, 2024
Nippon Telegraph and Telephone Corporation
Takuya Kanai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Communication system, communication apparatus and bandwidth allocat...
Patent number
11,909,651
Issue date
Feb 20, 2024
Nippon Telegraph and Telephone Corporation
Yumiko Senoo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical wavelength selecting filter-module and optical wavelength s...
Patent number
11,506,883
Issue date
Nov 22, 2022
Nippon Telegraph and Telephone Corporation
Takeshi Imai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL ACCESS SYSTEM AND MONITORING METHOD
Publication number
20250088777
Publication date
Mar 13, 2025
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION CONTROL DEVICE, RECEIVER DEVICE, COMMUNICATIO...
Publication number
20250088269
Publication date
Mar 13, 2025
Nippon Telegraph and Telephone Corporation
Yasunari TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM, CONTROL APPARATUS AND OPTICAL COMMUNI...
Publication number
20250008248
Publication date
Jan 2, 2025
Nippon Telegraph and Telephone Corporation
Yasunari TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL ACCESS SYSTEM AND CONTROL SIGNAL SUPERIMPOSITION METHOD
Publication number
20240381012
Publication date
Nov 14, 2024
Nippon Telegraph and Telephone Corporation
Kazutaka HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RELAY APPARATUS, OPTICAL ACCESS SYSTEM AND RELAY METHOD
Publication number
20240284081
Publication date
Aug 22, 2024
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION METHOD AND COMMUNICATION SYSTEM
Publication number
20240276128
Publication date
Aug 15, 2024
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL ACCESS SYSTEM AND MONITORING METHOD
Publication number
20240187092
Publication date
Jun 6, 2024
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM, CONTROL APPARATUS AND QUALITY COMPENS...
Publication number
20240056709
Publication date
Feb 15, 2024
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION DEVICE, CONTROL METHOD AND OPTICAL COMMUNICAT...
Publication number
20240056189
Publication date
Feb 15, 2024
Nippon Telegraph and Telephone Corporation
Yasunari TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION DEVICE, OPTICAL ACCESS SYSTEM AND OPTICAL COM...
Publication number
20240031020
Publication date
Jan 25, 2024
Nippon Telegraph and Telephone Corporation
Kazuaki HONDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION DEVICE, OPTICAL ACCESS SYSTEM AND OPTICAL COM...
Publication number
20230421283
Publication date
Dec 28, 2023
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH-SELECTION TYPE OPTICAL RECEIVING APPARATUS
Publication number
20220113478
Publication date
Apr 14, 2022
Nippon Telegraph and Telephone Corporation
Takuya KANAI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL WAVELENGTH SELECTING FILTER-MODULE AND OPTICAL WAVELENGTH S...
Publication number
20220043253
Publication date
Feb 10, 2022
Nippon Telegraph and Telephone Corporation
Takeshi IMAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, COMMUNICATION APPARATUS AND BANDWIDTH ALLOCAT...
Publication number
20220021617
Publication date
Jan 20, 2022
Nippon Telegraph and Telephone Corporation
Yumiko SENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE