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Yoshifumi WAKISAKA
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical-fiber path searching method, optical-fiber path searching s...
Patent number
11,976,962
Issue date
May 7, 2024
Nippon Telegraph and Telephone Corporation
Yoshifumi Wakisaka
G01 - MEASURING TESTING
Information
Patent Grant
Phase measurement method and signal processing device
Patent number
11,867,555
Issue date
Jan 9, 2024
Nippon Telegraph and Telephone Corporation
Yoshifumi Wakisaka
G01 - MEASURING TESTING
Information
Patent Grant
Vibration detection method with improved signal processing
Patent number
11,860,028
Issue date
Jan 2, 2024
Nippon Telegraph and Telephone Corporation
Yoshifumi Wakisaka
G01 - MEASURING TESTING
Information
Patent Grant
Light intensity distribution measurement method and light intensity...
Patent number
11,788,928
Issue date
Oct 17, 2023
Nippon Telegraph and Telephone Corporation
Tomokazu Oda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Optical fiber test method and optical fiber test device
Patent number
11,719,599
Issue date
Aug 8, 2023
Nippon Telegraph and Telephone Corporation
Atsushi Nakamura
G01 - MEASURING TESTING
Information
Patent Grant
Phase measurement method, signal processing device, and program
Patent number
11,522,606
Issue date
Dec 6, 2022
Nippon Telegraph and Telephone Corporation
Yoshifumi Wakisaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stimulated Raman scattering microscope device and stimulated Raman...
Patent number
11,340,171
Issue date
May 24, 2022
The University of Tokyo
Yasuyuki Ozeki
G01 - MEASURING TESTING
Information
Patent Grant
Distributed optical fiber vibration measurement device and distribu...
Patent number
11,280,668
Issue date
Mar 22, 2022
Nippon Telegraph and Telephone Corporation
Kunihiro Toge
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL PULSE TEST METHOD AND OPTICAL PULSE TEST EQUIPMENT
Publication number
20250003789
Publication date
Jan 2, 2025
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
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
VIBRATION MEASURING INSTRUMENT AND VIBRATION MEASUREMENT METHOD
Publication number
20240280403
Publication date
Aug 22, 2024
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
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
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
STRAIN CHANGE MEASURING DEVICE AND STRAIN CHANGE MEASURING METHOD
Publication number
20230288191
Publication date
Sep 14, 2023
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL PULSE TEST METHOD AND OPTICAL PULSE TEST EQUIPMENT
Publication number
20230175884
Publication date
Jun 8, 2023
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
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
OPTICAL FIBER TEST METHOD AND OPTICAL FIBER TEST DEVICE
Publication number
20220381645
Publication date
Dec 1, 2022
Nippon Telegraph and Telephone Corporation
Atsushi NAKAMURA
G01 - MEASURING TESTING
Information
Patent Application
LIGHT INTENSITY DISTRIBUTION MEASUREMENT METHOD AND LIGHT INTENSITY...
Publication number
20220260454
Publication date
Aug 18, 2022
Nippon Telegraph and Telephone Corporation
Tomokazu ODA
G01 - MEASURING TESTING
Information
Patent Application
PHASE MEASURING METHOD AND SIGNAL PROCESSING DEVICE
Publication number
20220221314
Publication date
Jul 14, 2022
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
Information
Patent Application
PHASE MEASUREMENT METHOD AND SIGNAL PROCESSING DEVICE
Publication number
20220155139
Publication date
May 19, 2022
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
Information
Patent Application
VIBRATION DETECTION METHOD, SIGNAL PROCESSING DEVICE, AND PROGRAM
Publication number
20220128395
Publication date
Apr 28, 2022
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
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
PHASE MEASUREMENT METHOD, SIGNAL PROCESSING DEVICE, AND PROGRAM
Publication number
20220006521
Publication date
Jan 6, 2022
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Distributed Optical Fiber Vibration Measurement Device and Distribu...
Publication number
20210278272
Publication date
Sep 9, 2021
Nippon Telegraph and Telephone Corporation
Kunihiro Toge
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL-FIBER PATH SEARCHING METHOD, OPTICAL-FIBER PATH SEARCHING S...
Publication number
20210223095
Publication date
Jul 22, 2021
Nippon Telegraph and Telephone Corporation
Yoshifumi WAKISAKA
G01 - MEASURING TESTING
Information
Patent Application
STIMULATED RAMAN SCATTERING MICROSCOPE DEVICE AND STIMULATED RAMAN...
Publication number
20190137401
Publication date
May 9, 2019
THE UNIVERSITY OF TOKYO
Yasuyuki OZEKI
G01 - MEASURING TESTING