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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Submarine device, submarine device monitoring method, and optical c...
Patent number
11,916,589
Issue date
Feb 27, 2024
NEC Corporation
Kazusa Ugajin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Submarine branching apparatus, optical submarine cable system, and...
Patent number
11,336,386
Issue date
May 17, 2022
NEC Corporation
Kazusa Ugajin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
TRANSMISSION APPARATUS, TRANSMISSION METHOD, AND RECORDING MEDIUM O...
Publication number
20240048236
Publication date
Feb 8, 2024
NEC Corporation
Kazusa UGAJIN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROCESSING DEVICE, TRANSMISSION DEVICE, COMMUNICATION DEVICE, PROCE...
Publication number
20230336249
Publication date
Oct 19, 2023
NEC Corporation
Kazusa UGAJIN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SUBMARINE DEVICE, SUBMARINE DEVICE MONITORING METHOD, AND OPTICAL C...
Publication number
20220303002
Publication date
Sep 22, 2022
NEC CORPORATION
Kazusa UGAJIN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SUBMARINE OPTICAL COMMUNICATION APPARATUS AND SUBMARINE OPTICAL COM...
Publication number
20200313762
Publication date
Oct 1, 2020
NEC Corporation
Kazusa UGAJIN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SUBMARINE BRANCHING APPARATUS, OPTICAL SUBMARINE CABLE SYSTEM, AND...
Publication number
20200259584
Publication date
Aug 13, 2020
NEC Corporation
Kazusa UGAJIN
H04 - ELECTRIC COMMUNICATION TECHNIQUE