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Takehiro Tsuritani
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Kamifukuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Communication device and communication system
Patent number
11,966,083
Issue date
Apr 23, 2024
KDDI Corporation
Hidenori Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reception apparatus and non-transitory computer readable medium
Patent number
11,689,295
Issue date
Jun 27, 2023
KDDI Corporation
Shohei Beppu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Measurement apparatus of optical communication system
Patent number
11,245,468
Issue date
Feb 8, 2022
KDDI Corporation
Hidenori Taga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical signal quality monitoring apparatus
Patent number
8,254,782
Issue date
Aug 28, 2012
KDDI Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Link connectivity verification method
Patent number
7,903,969
Issue date
Mar 8, 2011
KDDI Corporation
Noboru Yoshikane
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength service providing apparatus in all-optical network
Patent number
7,747,167
Issue date
Jun 29, 2010
KDDI Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Link system for photonic cross connect and transmission apparatus
Patent number
7,480,458
Issue date
Jan 20, 2009
KDDI Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical transmission line and optical...
Patent number
6,768,872
Issue date
Jul 27, 2004
KDD Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical fiber transmission line
Patent number
6,754,420
Issue date
Jun 22, 2004
KDDI Submarine Cable Systems Inc.
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, its method, and optical amplification...
Patent number
6,744,989
Issue date
Jun 1, 2004
KDDI Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical multiplexer and demultiplexer
Patent number
6,640,026
Issue date
Oct 28, 2003
KDD Submarine Cable Systems Inc.
Takehiro Tsuritani
G02 - OPTICS
Information
Patent Grant
Dispersion compensating optical transmission line and system
Patent number
6,594,428
Issue date
Jul 15, 2003
KDD Corporation
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
MULTI-CORE OPTICAL FIBER CONNECTOR
Publication number
20230204871
Publication date
Jun 29, 2023
KDDI CORPORATION
Hidenori TAKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL FIBER AMPLIFICATION SYSTEM AND OPTICAL COMMUNICATION SYSTEM
Publication number
20230038133
Publication date
Feb 9, 2023
FURUKAWA ELECTRIC CO., LTD.
Shigehiro TAKASAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
COMMUNICATION DEVICE AND COMMUNICATION SYSTEM
Publication number
20220187541
Publication date
Jun 16, 2022
KDDI CORPORATION
Hidenori TAKAHASHI
G02 - OPTICS
Information
Patent Application
RECEPTION APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM
Publication number
20220190930
Publication date
Jun 16, 2022
KDDI CORPORATION
Shohei BEPPU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COUPLER AND OPTICAL AMPLIFIER
Publication number
20220190542
Publication date
Jun 16, 2022
KDDI CORPORATION
Yuta WAKAYAMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MEASUREMENT APPARATUS OF OPTICAL COMMUNICATION SYSTEM
Publication number
20210105067
Publication date
Apr 8, 2021
KDDI CORPORATION
Hidenori TAGA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM
Publication number
20160216440
Publication date
Jul 28, 2016
FURUKAWA ELECTRIC CO., LTD.
Katsunori IMAMURA
G02 - OPTICS
Information
Patent Application
OPTICAL SIGNAL QUALITY MONITORING APPARATUS
Publication number
20090148158
Publication date
Jun 11, 2009
KDDI CORPORATION
Takehiro TSURITANI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Link connectivity verification method
Publication number
20080013949
Publication date
Jan 17, 2008
KDDI CORPORATION
Noboru Yoshikane
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength service providing apparatus in all-optical network
Publication number
20070127924
Publication date
Jun 7, 2007
KDDI CORPORATION
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Link system for photonic cross connect and transmission apparatus
Publication number
20060177219
Publication date
Aug 10, 2006
KDDI CORPORATION
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system and optical transmitter and methods the...
Publication number
20040052532
Publication date
Mar 18, 2004
Itsuro Morita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical fiber transmission line
Publication number
20020118936
Publication date
Aug 29, 2002
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmitter
Publication number
20020063920
Publication date
May 30, 2002
Itsuro Morita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical multiplexer and demultiplexer
Publication number
20020034359
Publication date
Mar 21, 2002
Takehiro Tsuritani
G02 - OPTICS
Information
Patent Application
Optical transmission system, its method, and optical amplification...
Publication number
20020003647
Publication date
Jan 10, 2002
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE