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Atsuko KAWAKITA
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Musashino-shi, Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical measuring device
Patent number
12,078,589
Issue date
Sep 3, 2024
Nippon Telegraph and Telephone Corporation
Tomohiro Taniguchi
G01 - MEASURING TESTING
Information
Patent Grant
Diagnostic device and diagnostic method
Patent number
12,068,776
Issue date
Aug 20, 2024
Nippon Telegraph and Telephone Corporation
Yasutaka Kimura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and control method
Patent number
11,996,895
Issue date
May 28, 2024
Nippon Telegraph and Telephone Corporation
Kazutaka Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and optical communication method
Patent number
11,956,009
Issue date
Apr 9, 2024
Nippon Telegraph and Telephone Corporation
Atsuko Kawakita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and dispersion compensation method
Patent number
11,881,893
Issue date
Jan 23, 2024
Nippon Telegraph and Telephone Corporation
Kazutaka Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and optical communication method
Patent number
11,863,211
Issue date
Jan 2, 2024
Nippon Telegraph and Telephone Corporation
Ryo Igarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and optical communication method
Patent number
11,711,150
Issue date
Jul 25, 2023
Nippon Telegraph and Telephone Corporation
Atsuko Kawakita
G02 - OPTICS
Information
Patent Grant
Optical communications system, branching ratio determination method...
Patent number
11,689,311
Issue date
Jun 27, 2023
Nippon Telegraph and Telephone Corporation
Atsuko Kawakita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and optical communication method
Patent number
11,290,189
Issue date
Mar 29, 2022
Nippon Telegraph and Telephone Corporation
Atsuko Kawakita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
ULTRAVIOLET LIGHT TRANSMISSION SYSTEM
Publication number
20240250757
Publication date
Jul 25, 2024
Nippon Telegraph and Telephone Corporation
Chisato Fukai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHT IRRADIATION SYSTEM
Publication number
20230310674
Publication date
Oct 5, 2023
Nippon Telegraph and Telephone Corporation
Tomohiro TANIGUCHI
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ULTRAVIOLET LIGHT IRRADIATION SYSTEM AND DECONTAMINATION METHOD
Publication number
20230293741
Publication date
Sep 21, 2023
Nippon Telegraph and Telephone Corporation
Takashi MATSUI
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ULTRAVIOLET LIGHT IRRADIATION SYSTEM AND DECONTAMINATION METHOD
Publication number
20230270898
Publication date
Aug 31, 2023
Nippon Telegraph and Telephone Corporation
Takashi MATSUI
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
POSITION MEASURING SYSTEM, POSITION MEASURING DEVICE, AND POSITION...
Publication number
20230161039
Publication date
May 25, 2023
Nippon Telegraph and Telephone Corporation
Atsuko KAWAKITA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Publication number
20230163852
Publication date
May 25, 2023
Nippon Telegraph and Telephone Corporation
Ryo IGARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DIAGNOSTIC DEVICE AND DIAGNOSTIC METHOD
Publication number
20230147193
Publication date
May 11, 2023
Nippon Telegraph and Telephone Corporation
Yasutaka KIMURA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND CONTROL METHOD
Publication number
20230082934
Publication date
Mar 16, 2023
Nippon Telegraph and Telephone Corporation
Kazutaka HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND DISPERSION COMPENSATION METHOD
Publication number
20230074152
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Kazutaka HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Publication number
20230055033
Publication date
Feb 23, 2023
Nippon Telegraph and Telephone Corporation
Atsuko KAWAKITA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MEASURING DEVICE
Publication number
20220291118
Publication date
Sep 15, 2022
Nippon Telegraph and Telephone Corporation
Tomohiro TANIGUCHI
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Publication number
20220173813
Publication date
Jun 2, 2022
Nippon Telegraph and Telephone Corporation
Atsuko KAWAKITA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATIONS SYSTEM, BRANCHING RATIO DETERMINATION METHOD...
Publication number
20220166532
Publication date
May 26, 2022
Nippon Telegraph and Telephone Corporation
Atsuko KAWAKITA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Publication number
20210194589
Publication date
Jun 24, 2021
Nippon Telegraph and Telephone Corporation
Atsuko KAWAKITA
G02 - OPTICS