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Osaka, JP
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Patents Grants
last 30 patents
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
Terminal devices, communication methods, and communication systems
Patent number
11,929,781
Issue date
Mar 12, 2024
Nippon Telegraph and Telephone Corporation
Ryota Shiina
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication systems, base stations, and communication methods
Patent number
11,901,959
Issue date
Feb 13, 2024
Nippon Telegraph and Telephone Corporation
Tomohiro Taniguchi
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
Wireless communication system, wireless communication method and wi...
Patent number
11,728,904
Issue date
Aug 15, 2023
Nippon Telegraph and Telephone Corporation
Kazutaka Hara
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
Wireless communication system, wireless communication method and te...
Patent number
11,700,560
Issue date
Jul 11, 2023
Nippon Telegraph and Telephone Corporation
Ryota Shiina
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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-RF hybrid wireless communication system and control method
Patent number
11,411,646
Issue date
Aug 9, 2022
Nippon Telegraph and Telephone Corporation
Ryota Shiina
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
Information
Patent Grant
Optical/RF wireless hybrid communication system and a control method
Patent number
11,212,004
Issue date
Dec 28, 2021
Nippon Telegraph and Telephone Corporation
Ryota Shiina
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulation/demodulation method, optical communication syste...
Patent number
11,082,133
Issue date
Aug 3, 2021
Nippon Telegraph and Telephone Corporation
Kazutaka Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical waveguide, and SPR sensor cell and colorimetric sensor cell...
Patent number
10,126,239
Issue date
Nov 13, 2018
Nitto Denko Corporation
Shigenori Morita
G01 - MEASURING TESTING
Information
Patent Grant
Anti-fouling adhesive sheet, and anti-fouling treatment method for...
Patent number
10,066,129
Issue date
Sep 4, 2018
Nitto Denko Corporation
Kazutaka Hara
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Power module
Patent number
8,749,978
Issue date
Jun 10, 2014
Nitto Denko Corporation
Seiji Izutani
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Light-emitting diode device
Patent number
8,592,844
Issue date
Nov 26, 2013
Nitto Denko Corporation
Seiji Izutani
F21 - LIGHTING
Information
Patent Grant
Imaging device module
Patent number
8,547,465
Issue date
Oct 1, 2013
Nitto Denko Corporation
Seiji Izutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source and liquid crystal display
Patent number
8,373,829
Issue date
Feb 12, 2013
Nitto Denko Corporation
Kazutaka Hara
G02 - OPTICS
Information
Patent Grant
Bit-rate discrimination method and its apparatus
Patent number
8,369,713
Issue date
Feb 5, 2013
Nippon Telegraph and Telephone Corporation
Kazutaka Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Muffling structure of vent pipe and muffling structure of case
Patent number
8,316,987
Issue date
Nov 27, 2012
Tokyo Roki Co., Ltd.
Kosaku Ishida
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Modulation method, modulation program, recording medium, modulation...
Patent number
8,094,692
Issue date
Jan 10, 2012
Nippon Telegraph and Telephone Corporation
Hirotaka Nakamura
G02 - OPTICS
Information
Patent Grant
Polarization component, polarization light source and image display...
Patent number
7,982,952
Issue date
Jul 19, 2011
Nitto Denko Corporation
Kazutaka Hara
G02 - OPTICS
Information
Patent Grant
Light source device and crystal display device
Patent number
7,841,730
Issue date
Nov 30, 2010
Nitto Denko Corporation
Kazutaka Hara
G02 - OPTICS
Information
Patent Grant
Optical element, light condensation backlight system, and liquid cr...
Patent number
7,746,421
Issue date
Jun 29, 2010
Nitto Denko Corporation
Naoki Takahashi
G02 - OPTICS
Information
Patent Grant
Polarizer, polarization light source and image display unit using them
Patent number
7,746,555
Issue date
Jun 29, 2010
Nitto Denko Corporation
Kazutaka Hara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical element, polarizing element, lighting device, and liquid cr...
Patent number
7,633,678
Issue date
Dec 15, 2009
Nitto Denko Corporation
Naoki Takahashi
G02 - OPTICS
Information
Patent Grant
Optical element, polarizing element, lighting device, and liquid cr...
Patent number
7,630,134
Issue date
Dec 8, 2009
Nitto Denko Corporation
Naoki Takahashi
G02 - OPTICS
Information
Patent Grant
Polarizing plate and image display including the same
Patent number
7,622,055
Issue date
Nov 24, 2009
Nitto Denko Corporation
Shinya Nakano
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL COMMUNICATION DEVICE, OPTICAL ACCESS SYSTEM AND OPTICAL COM...
Publication number
20240031020
Publication date
Jan 25, 2024
Nippon Telegraph and Telephone Corporation
Kazuaki HONDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
STATION SIDE OPTICAL LINE TERMINAL AND REGISTRATION METHOD
Publication number
20230403082
Publication date
Dec 14, 2023
Nippon Telegraph and Telephone Corporation
Ryo KOMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
MONITORING SYSTEM, MONITORING METHOD, AND MONITORING PROGRAM
Publication number
20230215254
Publication date
Jul 6, 2023
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
G06 - COMPUTING CALCULATING COUNTING
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
WIRELESS COMMUNICATION SYSTEM, BASE STATION CONTROL DEVICE, EVACUAT...
Publication number
20230136032
Publication date
May 4, 2023
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, BASE STATION CONTROL DEVICE, EVACUAT...
Publication number
20230130486
Publication date
Apr 27, 2023
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
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
TERMINAL DEVICES, COMMUNICATION METHODS, AND COMMUNICATION SYSTEMS
Publication number
20230033853
Publication date
Feb 2, 2023
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TERMINAL DEVICES, COMMUNICATION METHODS, AND COMMUNICATION SYSTEMS
Publication number
20230022598
Publication date
Jan 26, 2023
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TERMINAL DEVICES, COMMUNICATION METHODS, AND COMMUNICATION SYSTEMS
Publication number
20230025646
Publication date
Jan 26, 2023
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEMS, TERMINALS, COMMUNICATION METHODS, AND PROGRAMS
Publication number
20220360984
Publication date
Nov 10, 2022
Nippon Telegraph and Telephone Corporation
Kazutaka HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD AND TE...
Publication number
20220361070
Publication date
Nov 10, 2022
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEMS, BASE STATIONS, AND COMMUNICATION METHODS
Publication number
20220352993
Publication date
Nov 3, 2022
Nippon Telegraph and Telephone Corporation
Tomohiro TANIGUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS TERMINAL STATION DEVICE, MANAGEMENT STATION DEVICE, WIRELE...
Publication number
20220338103
Publication date
Oct 20, 2022
Nippon Telegraph and Telephone Corporation
Toshiro NAKAHIRA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL EQUIPMENT, WIRELES...
Publication number
20220303004
Publication date
Sep 22, 2022
Nippon Telegraph and Telephone Corporation
Tomohiro TANIGUCHI
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
CONTROL STATION DEVICE AND WIRELESS TERMINAL STATION DEVICE
Publication number
20220264438
Publication date
Aug 18, 2022
Nippon Telegraph and Telephone Corporation
Tomoki MURAKAMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD AND WI...
Publication number
20220255634
Publication date
Aug 11, 2022
Nippon Telegraph and Telephone Corporation
Kazutaka HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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-RF HYBRID WIRELESS COMMUNICATION SYSTEM AND CONTROL METHOD
Publication number
20210344422
Publication date
Nov 4, 2021
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical/RF Wireless Hybrid Communication System and a Control Method
Publication number
20210266071
Publication date
Aug 26, 2021
Nippon Telegraph and Telephone Corporation
Ryota SHIINA
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
Information
Patent Application
OPTICAL MODULATION/DEMODULATION METHOD, OPTICAL COMMUNICATION SYSTE...
Publication number
20210013971
Publication date
Jan 14, 2021
Nippon Telegraph and Telephone Corporation
Kazutaka HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical Waveguide, and SPR Sensor Cell and Colorimetric Sensor Cell...
Publication number
20170038298
Publication date
Feb 9, 2017
NITTO DENKO CORPORATION
Shigenori Morita
G02 - OPTICS