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Takui UEMATSU
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Musashino-shi, Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Termination determination device and termination determination method
Patent number
12,107,624
Issue date
Oct 1, 2024
Nippon Telegraph and Telephone Corporation
Hiroyuki Iida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical fiber lateral input/output device
Patent number
12,066,666
Issue date
Aug 20, 2024
Nippon Telegraph and Telephone Corporation
Hidenobu Hirota
G02 - OPTICS
Information
Patent Grant
Judgment device and judgment method
Patent number
12,061,131
Issue date
Aug 13, 2024
Nippon Telegraph and Telephone Corporation
Hiroyuki Iida
G01 - MEASURING TESTING
Information
Patent Grant
Optical fiber lateral input/output device
Patent number
11,886,012
Issue date
Jan 30, 2024
Nippon Telegraph and Telephone Corporation
Takui Uematsu
G02 - OPTICS
Information
Patent Grant
Optical fiber side input and output device
Patent number
11,880,069
Issue date
Jan 23, 2024
Nippon Telegraph and Telephone Corporation
Takui Uematsu
G02 - OPTICS
Information
Patent Grant
Manufacturing method and manufacturing apparatus of optical splitters
Patent number
11,747,564
Issue date
Sep 5, 2023
Nippon Telegraph and Telephone Corporation
Takui Uematsu
G02 - OPTICS
Information
Patent Grant
Optical fiber display system and optical fiber switching method
Patent number
11,711,144
Issue date
Jul 25, 2023
Nippon Telegraph and Telephone Corporation
Hidenobu Hirota
G02 - OPTICS
Information
Patent Grant
Communication apparatus identification device, optical fiber connec...
Patent number
11,683,091
Issue date
Jun 20, 2023
Nippon Telegraph and Telephone Corporation
Hidenobu Hirota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Simulation signal light generation device and simulation signal lig...
Patent number
11,575,981
Issue date
Feb 7, 2023
Nippon Telegraph and Telephone Corporation
Takui Uematsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical frequency multiplexing coherent OTDR, testing method, signa...
Patent number
11,385,127
Issue date
Jul 12, 2022
Nippon Telegraph and Telephone Corporation
Hiroyuki Iida
G01 - MEASURING TESTING
Information
Patent Grant
Optical fiber side input/output device and design method
Patent number
11,385,424
Issue date
Jul 12, 2022
Nippon Telegraph and Telephone Corporation
Takui Uematsu
G02 - OPTICS
Information
Patent Grant
Communication monitor method and communication monitor device
Patent number
11,349,563
Issue date
May 31, 2022
Nippon Telegraph and Telephone Corporation
Takui Uematsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical fiber lateral input/output device
Patent number
11,300,731
Issue date
Apr 12, 2022
Nippon Telegraph and Telephone Corporation
Takui Uematsu
G02 - OPTICS
Information
Patent Grant
Optical pulse testing device and optical pulse testing method
Patent number
11,199,473
Issue date
Dec 14, 2021
Nippon Telegraph and Telephone Corporation
Hiroyuki Iida
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
MONITORING DEVICE AND OPTICAL FIBER IDENTIFICATION METHOD
Publication number
20240031019
Publication date
Jan 25, 2024
Nippon Telegraph and Telephone Corporation
Hidenobu HIROTA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BRANCH RATIO MEASURING DEVICE, BRANCH RATIO MEASURING METHOD, AND O...
Publication number
20230324623
Publication date
Oct 12, 2023
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
OPTICAL COUPLING DEVICE AND OPTICAL COUPLING SYSTEM
Publication number
20230314715
Publication date
Oct 5, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya FUJIMOTO
G02 - OPTICS
Information
Patent Application
OPTICAL FIBER AND ITS CONNECTION METHOD
Publication number
20230296828
Publication date
Sep 21, 2023
Nippon Telegraph and Telephone Corporation
Hidenobu HIROTA
G02 - OPTICS
Information
Patent Application
OPTICAL COUPLING DEVICE AND OPTICAL COUPLING SYSTEM
Publication number
20230280536
Publication date
Sep 7, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya FUJIMOTO
G02 - OPTICS
Information
Patent Application
OPTICAL NETWORK SYSTEM, OPERATING METHOD OF OPTICAL NETWORK SYSTEM,...
Publication number
20230269005
Publication date
Aug 24, 2023
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TERMINATION DETERMINATION DEVICE AND TERMINATION DETERMINATION METHOD
Publication number
20230231625
Publication date
Jul 20, 2023
Nippon Telegraph and Telephone Corporation
Hiroyuki IIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MULTIPLEXING/DEMULTIPLEXING METHOD, OPTICAL MULTIPLEXING/DE...
Publication number
20230100044
Publication date
Mar 30, 2023
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MULTIPLEXING/DEMULTIPLEXING METHOD, OPTICAL MULTIPLEXING/DE...
Publication number
20230081743
Publication date
Mar 16, 2023
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
COMMUNICATION APPARATUS IDENTIFICATION DEVICE, OPTICAL FIBER CONNEC...
Publication number
20220352980
Publication date
Nov 3, 2022
Nippon Telegraph and Telephone Corporation
Hidenobu HIROTA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MANUFACTURING METHOD AND MANUFACTURING APPARATUS OF OPTICAL SPLITTERS
Publication number
20220342153
Publication date
Oct 27, 2022
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
JUDGMENT DEVICE AND JUDGMENT METHOD
Publication number
20220228947
Publication date
Jul 21, 2022
Nippon Telegraph and Telephone Corporation
Hiroyuki IIDA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL FIBER LATERAL INPUT/OUTPUT DEVICE
Publication number
20220171137
Publication date
Jun 2, 2022
Hidenobu HIROTA
G02 - OPTICS
Information
Patent Application
OPTICAL FIBER DISPLAY SYSTEM AND OPTICAL FIBER SWITCHING METHOD
Publication number
20220166502
Publication date
May 26, 2022
Nippon Telegraph and Telephone Corporation
Hidenobu HIROTA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL FIBER LATERAL INPUT/OUTPUT DEVICE
Publication number
20220128765
Publication date
Apr 28, 2022
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
COMMUNICATION MONITOR METHOD AND COMMUNICATION MONITOR DEVICE
Publication number
20220116109
Publication date
Apr 14, 2022
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL FIBER SIDE INPUT AND OUTPUT DEVICE
Publication number
20220066101
Publication date
Mar 3, 2022
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
OPTICAL FREQUENCY MULTIPLEXING COHERENT OTDR, TESTING METHOD, SIGNA...
Publication number
20210262892
Publication date
Aug 26, 2021
Nippon Telegraph and Telephone Corporation
Hiroyuki IIDA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL PULSE TESTING DEVICE AND OPTICAL PULSE TESTING METHOD
Publication number
20210239567
Publication date
Aug 5, 2021
Nippon Telegraph and Telephone Corporation
Hiroyuki IIDA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
OPTICAL FIBER SIDE INPUT/OUTPUT DEVICE AND DESIGN METHOD
Publication number
20210231892
Publication date
Jul 29, 2021
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
SIMULATION SIGNAL LIGHT GENERATION DEVICE AND SIMULATION SIGNAL LIG...
Publication number
20210195303
Publication date
Jun 24, 2021
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROBE OPTICAL FIBER AND OPTICAL FIBER LATERAL INPUT/OUTPUT DEVICE
Publication number
20210191043
Publication date
Jun 24, 2021
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS
Information
Patent Application
OPTICAL FIBER LATERAL INPUT/OUTPUT DEVICE
Publication number
20210124121
Publication date
Apr 29, 2021
Nippon Telegraph and Telephone Corporation
Takui UEMATSU
G02 - OPTICS