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Kazunori Katayama
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Ibaraki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Cable blocks
Patent number
11,949,220
Issue date
Apr 2, 2024
Nippon Telegraph and Telephone Corporation
Kuniaki Terakawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Multifiber optical connector and optical cable connection method
Patent number
11,740,414
Issue date
Aug 29, 2023
Nippon Telegraph and Telephone Corporation
Masaaki Takaya
G02 - OPTICS
Information
Patent Grant
Connector plug, connector insertion method, and a connector removal...
Patent number
11,543,612
Issue date
Jan 3, 2023
Nippon Telegraph and Telephone Corporation
Masaaki Takaya
G02 - OPTICS
Information
Patent Grant
Optical connector ferrule, sleeve, and method for manufacturing fer...
Patent number
11,474,303
Issue date
Oct 18, 2022
Nippon Telegraph and Telephone Corporation
Masaaki Takaya
G02 - OPTICS
Information
Patent Grant
Optical fiber cable
Patent number
11,422,301
Issue date
Aug 23, 2022
Nippon Telegraph and Telephone Corporation
Yusuke Yamada
G02 - OPTICS
Information
Patent Grant
Optical fiber cable, and device and method for manufacturing optica...
Patent number
11,360,281
Issue date
Jun 14, 2022
Nippon Telegraph and Telephone Corporation
Masashi Kikuchi
G02 - OPTICS
Information
Patent Grant
Method of switching optical path, and apparatus thereof
Patent number
8,718,467
Issue date
May 6, 2014
Nippon Telegraph and Telephone Corporation
Takeshi Tsujimura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SURVEILLANCE CONTROL DEVICE AND OPTICAL POWER SUPPLY SYSTEM
Publication number
20240056708
Publication date
Feb 15, 2024
Nippon Telegraph and Telephone Corporation
Tomohiro KAWANO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
OPTICAL CONNECTOR CLEANING TOOL
Publication number
20240027692
Publication date
Jan 25, 2024
Nippon Telegraph and Telephone Corporation
Chisato FUKAI
B08 - CLEANING
Information
Patent Application
OPTICAL COUPLING DEVICE AND OPTICAL COUPLING SYSTEM
Publication number
20230314715
Publication date
Oct 5, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya FUJIMOTO
G02 - OPTICS
Information
Patent Application
OPTICAL COUPLING DEVICE AND OPTICAL COUPLING SYSTEM
Publication number
20230280536
Publication date
Sep 7, 2023
Nippon Telegraph and Telephone Corporation
Tatsuya FUJIMOTO
G02 - OPTICS
Information
Patent Application
AIR CONDITIONING SYSTEM AND AIR CONDITIONING CONTROL METHOD
Publication number
20220349609
Publication date
Nov 3, 2022
Nippon Telegraph and Telephone Corporation
Tatsuya FUJIMOTO
F24 - HEATING RANGES VENTILATING
Information
Patent Application
CABLE ROUTE SETTING METHOD
Publication number
20220327274
Publication date
Oct 13, 2022
Nippon Telegraph and Telephone Corporation
Tatsuya Fujimoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CABLE BLOCKS
Publication number
20220320846
Publication date
Oct 6, 2022
Nippon Telegraph and Telephone Corporation
Kuniaki TERAKAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
CABLE ROUTE DESIGN METHOD
Publication number
20220318448
Publication date
Oct 6, 2022
Nippon Telegraph and Telephone Corporation
Kuniaki TERAKAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CONNECTOR PLUG, CONNECTOR INSERTION METHOD, AND A CONNECTOR REMOVAL...
Publication number
20220113484
Publication date
Apr 14, 2022
Nippon Telegraph and Telephone Corporation
Masaaki TAKAYA
G02 - OPTICS
Information
Patent Application
OPTICAL CONNECTOR FERRULE, SLEEVE, AND METHOD FOR MANUFACTURING FER...
Publication number
20210389528
Publication date
Dec 16, 2021
Nippon Telegraph and Telephone Corporation
Masaaki Takaya
G02 - OPTICS
Information
Patent Application
MULTI-CORE OPTICAL CONNECTOR AND OPTICAL CABLE CONNECTION METHOD
Publication number
20210341687
Publication date
Nov 4, 2021
Nippon Telegraph and Telephone Corporation
Masaaki TAKAYA
G02 - OPTICS
Information
Patent Application
OPTICAL FIBER CABLE, AND DEVICE AND METHOD FOR MANUFACTURING OPTICA...
Publication number
20210132314
Publication date
May 6, 2021
Nippon Telegraph and Telephone Corporation
Masashi KIKUCHI
G02 - OPTICS
Information
Patent Application
OPTICAL FIBER CABLE
Publication number
20210124113
Publication date
Apr 29, 2021
Nippon Telegraph and Telephone Corporation
Yusuke YAMADA
G02 - OPTICS
Information
Patent Application
METHOD OF SWITCHING OPTICAL PATH, AND APPARATUS THEREOF
Publication number
20110236015
Publication date
Sep 29, 2011
Takeshi Tsujimura
H04 - ELECTRIC COMMUNICATION TECHNIQUE