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Tatsuya OKAMOTO
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Aerial optical fiber cable inspection method, aerial optical fiber...
Patent number
12,031,858
Issue date
Jul 9, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distributed vibration measuring device and method
Patent number
11,994,376
Issue date
May 28, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
G01 - MEASURING TESTING
Information
Patent Grant
Vibration distribution measuring system, vibration waveform analysi...
Patent number
11,920,974
Issue date
Mar 5, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
G01 - MEASURING TESTING
Information
Patent Grant
Measuring device and measuring method using tape core wire
Patent number
11,788,909
Issue date
Oct 17, 2023
Nippon Telegraph and Telephone Corporation
Atsushi Nakamura
G01 - MEASURING TESTING
Information
Patent Grant
Optical fiber route search method, optical fiber route search devic...
Patent number
11,750,283
Issue date
Sep 5, 2023
Nippon Telegraph and Telephone Corporation
Daisuke Iida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Manhole position specification method and manhole position specific...
Patent number
11,644,347
Issue date
May 9, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Device for measuring optical frequency reflection and measurement m...
Patent number
11,463,163
Issue date
Oct 4, 2022
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Connection device restriction system
Patent number
10,528,504
Issue date
Jan 7, 2020
Hitachi, Ltd.
Tatsuya Okamoto
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING DEVICE
Publication number
20240295433
Publication date
Sep 5, 2024
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
Information
Patent Application
SENSING SYSTEM, SENSING METHOD, AND ANALYZER
Publication number
20240271971
Publication date
Aug 15, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
G01 - MEASURING TESTING
Information
Patent Application
CABLE TEST SYSTEM, ANALYZER, CABLE TEST METHOD, AND PROGRAM
Publication number
20240192049
Publication date
Jun 13, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
G01 - MEASURING TESTING
Information
Patent Application
ANALYZER, MEASUREMENT SYSTEM, MEASUREMENT METHOD AND PROGRAM
Publication number
20240175726
Publication date
May 30, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
G01 - MEASURING TESTING
Information
Patent Application
POSITIONING METHOD OF ELECTRIC POLE AND ESTIMATING METHOD OF THE ST...
Publication number
20240118126
Publication date
Apr 11, 2024
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
G01 - MEASURING TESTING
Information
Patent Application
COHERENT OPTICAL MEASURING DEVICE, OPTICAL LINE TEST SYSTEM AND METHOD
Publication number
20240118127
Publication date
Apr 11, 2024
Nippon Telegraph and Telephone Corporation
Daisuke IIDA
G01 - MEASURING TESTING
Information
Patent Application
DEVICES AND METHODS FOR MEASURING THE AMOUNT OF FREQUENCY MODULATION
Publication number
20230400379
Publication date
Dec 14, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VIBRATION DETECTION DEVICE AND VIBRATION DETECTION METHOD
Publication number
20230358599
Publication date
Nov 9, 2023
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL FREQUENCY DOMAIN REFLECTOMETRY APPARATUS AND METHOD
Publication number
20230341245
Publication date
Oct 26, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
G01 - MEASURING TESTING
Information
Patent Application
DISTRIBUTED ACOUSTIC SENSING DEVICE AND METHOD
Publication number
20230288231
Publication date
Sep 14, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
G01 - MEASURING TESTING
Information
Patent Application
MEASURING DEVICE AND MEASURING METHOD USING TAPE CORE WIRE
Publication number
20230152170
Publication date
May 18, 2023
Nippon Telegraph and Telephone Corporation
Atsushi NAKAMURA
G01 - MEASURING TESTING
Information
Patent Application
Distributed Vibration Measuring Device and Method
Publication number
20220326005
Publication date
Oct 13, 2022
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
G01 - MEASURING TESTING
Information
Patent Application
DEVICE FOR MEASURING OPTICAL FREQUENCY REFLECTION AND MEASUREMENT M...
Publication number
20220149934
Publication date
May 12, 2022
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AERIAL OPTICAL FIBER CABLE INSPECTION METHOD, AERIAL OPTICAL FIBER...
Publication number
20220107218
Publication date
Apr 7, 2022
Nippon Telegraph and Telephone Corporation
Tatsuya OKAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL FIBER ROUTE SEARCH METHOD, OPTICAL FIBER ROUTE SEARCH DEVIC...
Publication number
20220103252
Publication date
Mar 31, 2022
Nippon Telegraph and Telephone Corporation
Daisuke IIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Manhole Position Specification Method and Manhole Position Specific...
Publication number
20210255005
Publication date
Aug 19, 2021
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Vibration Distribution Measuring System, Vibration Waveform Analysi...
Publication number
20210215532
Publication date
Jul 15, 2021
Nippon Telegraph and Telephone Corporation
Tatsuya Okamoto
G01 - MEASURING TESTING
Information
Patent Application
CONNECTION DEVICE RESTRICTION SYSTEM
Publication number
20190370201
Publication date
Dec 5, 2019
Hitachi, Ltd
Tatsuya OKAMOTO
G06 - COMPUTING CALCULATING COUNTING