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Hiroyuki OYANAGI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Analysis device, analysis method, and analysis program
Patent number
11,853,744
Issue date
Dec 26, 2023
Nippon Telegraph and Telephone Corporation
Hiroyuki Oyanagi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Maintenance management system and data processing method
Patent number
11,720,092
Issue date
Aug 8, 2023
Nippon Telegraph and Telephone Corporation
Mizuto Nakamura
G08 - SIGNALLING
Information
Patent Grant
Transmission system and wavelength resource management method
Patent number
11,296,790
Issue date
Apr 5, 2022
Nippon Telegraph and Telephone Corporation
Toshihiko Seki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and wavelength allocation method
Patent number
11,201,687
Issue date
Dec 14, 2021
Nippon Telegraph and Telephone Corporation
Toshihiko Seki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Monitoring device and monitoring method
Patent number
11,196,482
Issue date
Dec 7, 2021
Nippon Telegraph and Telephone Corporation
Osamu Okino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Path display device and path display method
Patent number
11,114,066
Issue date
Sep 7, 2021
Nippon Telegraph and Telephone Corporation
Yuichiro Ishizuka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Monitoring device and monitoring method
Patent number
11,057,105
Issue date
Jul 6, 2021
Nippon Telegraph and Telephone Corporation
Hiroyuki Oyanagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
ANALYSIS DEVICE, ANALYSIS METHOD, AND ANALYSIS PROGRAM
Publication number
20220121441
Publication date
Apr 21, 2022
Nippon Telegraph and Telephone Corporation
Hiroyuki OYANAGI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Transmission System and Wavelength Resource Management Method
Publication number
20210328673
Publication date
Oct 21, 2021
Nippon Telegraph and Telephone Corporation
Toshihiko Seki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MAINTENANCE MANAGEMENT SYSTEM AND DATA PROCESSING METHOD
Publication number
20210311467
Publication date
Oct 7, 2021
Nippon Telegraph and Telephone Corporation
Mizuto NAKAMURA
G08 - SIGNALLING
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND WAVELENGTH ALLOCATION METHOD
Publication number
20210194617
Publication date
Jun 24, 2021
Nippon Telegraph and Telephone Corporation
Toshihiko SEKI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MONITORING DEVICE AND MONITORING METHOD
Publication number
20210075505
Publication date
Mar 11, 2021
Nippon Telegraph and Telephone Corporation
Hiroyuki OYANAGI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PATH DISPLAY DEVICE AND PATH DISPLAY METHOD
Publication number
20210005163
Publication date
Jan 7, 2021
Nippon Telegraph and Telephone Corporation
Yuichiro ISHIZUKA
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
MONITORING DEVICE AND MONITORING METHOD
Publication number
20200412445
Publication date
Dec 31, 2020
Nippon Telegraph and Telephone Corporation
Osamu OKINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE