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Yusuke Yajima
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for supporting production management
Patent number
11,796,987
Issue date
Oct 24, 2023
Hitachi, Ltd.
Hisashi Uehara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for supporting production management
Patent number
11,593,739
Issue date
Feb 28, 2023
Hitachi, Ltd.
Kenichirou Kawakami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for supporting production management
Patent number
11,493,905
Issue date
Nov 8, 2022
Hitachi, Ltd.
Kazuhiro Matsuya
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for supporting production management
Patent number
11,367,032
Issue date
Jun 21, 2022
Hitachi, Ltd.
Yoshihito Doi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for supporting production management
Patent number
11,269,317
Issue date
Mar 8, 2022
Hitachi, Ltd.
Shigeyasu Kubo
G05 - CONTROLLING REGULATING
Information
Patent Grant
Communication apparatus and communication method
Patent number
9,137,158
Issue date
Sep 15, 2015
Hitachi, Ltd.
Taisuke Ueta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication device, method for controlling the communication devi...
Patent number
9,065,862
Issue date
Jun 23, 2015
Hitachi, Ltd.
Masayuki Takase
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and operating method thereof
Patent number
8,724,995
Issue date
May 13, 2014
Hitachi, Ltd.
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system, subscriber accommodating apparatus and commun...
Patent number
8,554,075
Issue date
Oct 8, 2013
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical multiplexing terminating device, passive optical network sy...
Patent number
8,532,491
Issue date
Sep 10, 2013
Hitachi, Ltd.
Norihiro Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus of adjusting optical signal transmission timing
Patent number
8,467,684
Issue date
Jun 18, 2013
Hitachi, Ltd.
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical access system
Patent number
8,457,492
Issue date
Jun 4, 2013
Hitachi, Ltd.
Masaki Ohira
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical passive network system and its operation method
Patent number
8,428,457
Issue date
Apr 23, 2013
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system and communication apparatus
Patent number
8,422,375
Issue date
Apr 16, 2013
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and optical line terminal
Patent number
8,374,503
Issue date
Feb 12, 2013
Hitachi, Ltd.
Norihiro Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and fault determination method
Patent number
8,254,780
Issue date
Aug 28, 2012
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and optical line terminating apparatus
Patent number
8,249,454
Issue date
Aug 21, 2012
Hitachi, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and ranging method
Patent number
8,249,455
Issue date
Aug 21, 2012
Hitachi, Ltd.
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and method for operating the same
Patent number
8,249,458
Issue date
Aug 21, 2012
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Bit synchronization circuit with phase tracking function
Patent number
8,204,168
Issue date
Jun 19, 2012
Hitachi, Ltd.
Yusuke Yajima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and operating method thereof
Patent number
8,184,976
Issue date
May 22, 2012
Hitachi, Ltd.
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system, optical line terminator and, commun...
Patent number
8,139,950
Issue date
Mar 20, 2012
Hitachi, Ltd.
Masao Niibe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
PON system method for receiving optical signal and OLT
Patent number
8,116,627
Issue date
Feb 14, 2012
Hitachi, Ltd.
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and communication method therefor
Patent number
8,107,824
Issue date
Jan 31, 2012
Hitachi, Ltd.
Akihiko Tsuchiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and operation method of the same
Patent number
8,095,004
Issue date
Jan 10, 2012
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network system, optical line terminating apparatus, and optical net...
Patent number
8,090,261
Issue date
Jan 3, 2012
Hitachi, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system and communication apparatus
Patent number
8,027,258
Issue date
Sep 27, 2011
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and optical line terminal
Patent number
8,005,362
Issue date
Aug 23, 2011
Hitachi, Ltd.
Norihiro Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system and ranging method
Patent number
7,957,647
Issue date
Jun 7, 2011
Hitachi, Ltd.
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for inspecting integrated circuit pattern
Patent number
7,952,074
Issue date
May 31, 2011
Hitachi, Ltd.
Hiroyuki Shinada
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD FOR SUPPORTING PRODUCTION MANAGEMENT
Publication number
20210294308
Publication date
Sep 23, 2021
Hitachi, Ltd
Hisashi UEHARA
G05 - CONTROLLING REGULATING
Information
Patent Application
SYSTEM AND METHOD FOR SUPPORTING PRODUCTION MANAGEMENT
Publication number
20210125125
Publication date
Apr 29, 2021
Hitachi, Ltd
Yoshihito DOI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SYSTEM AND METHOD FOR SUPPORTING PRODUCTION MANAGEMENT
Publication number
20210081870
Publication date
Mar 18, 2021
Hitachi, Ltd
Kenichirou KAWAKAMI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SYSTEM AND METHOD FOR SUPPORTING PRODUCTION MANAGEMENT
Publication number
20200363792
Publication date
Nov 19, 2020
Hitachi, Ltd
Shigeyasu KUBO
G05 - CONTROLLING REGULATING
Information
Patent Application
System and Method for Supporting Production Management
Publication number
20200150636
Publication date
May 14, 2020
Hitachi, Ltd
Kazuhiro MATSUYA
G05 - CONTROLLING REGULATING
Information
Patent Application
COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND RECORDING MEDIUM
Publication number
20150146649
Publication date
May 28, 2015
Hitachi, Ltd
Taisuke UETA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION DEVICE, METHOD FOR CONTROLLING THE COMMUNICATION DEVI...
Publication number
20140010233
Publication date
Jan 9, 2014
Masayuki TAKASE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION APPARATUS AND COMMUNICATION METHOD
Publication number
20130322450
Publication date
Dec 5, 2013
Taisuke UETA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MULTIPLEXING TERMINATING DEVICE, PASSIVE OPTICAL NETWORK SY...
Publication number
20120106958
Publication date
May 3, 2012
Hitachi, Ltd.
Norihiro Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM AND COMMUNICATION APPARATUS
Publication number
20120070147
Publication date
Mar 22, 2012
Masahiko MIZUTANI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM AND OPERATING METHOD THEREOF
Publication number
20120008948
Publication date
Jan 12, 2012
HITACHI LTD.
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM AND OPTICAL LINE TERMINAL
Publication number
20110293274
Publication date
Dec 1, 2011
Norihiro SAKAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, SUBSCRIBER ACCOMMODATING APPARATUS AND COMMUN...
Publication number
20110268435
Publication date
Nov 3, 2011
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM AND RANGING METHOD
Publication number
20110200326
Publication date
Aug 18, 2011
Tohru KAZAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS OF ADJUSTING OPTICAL SIGNAL TRANSMISSION TIMING
Publication number
20110170871
Publication date
Jul 14, 2011
Hitachi, Ltd
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL ACCESS SYSTEM
Publication number
20100296811
Publication date
Nov 25, 2010
Hitachi, Ltd
Masaki Ohira
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PASSIVE NETWORK SYSTEM AND ITS OPERATION METHOD
Publication number
20100272436
Publication date
Oct 28, 2010
Hitachi, Ltd.
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND METHOD FOR OPERATING THE SAME
Publication number
20100178051
Publication date
Jul 15, 2010
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Passive Optical Network System and Operating Method Thereof
Publication number
20100080558
Publication date
Apr 1, 2010
Tohru Kazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Passive optical network system and fault determination method
Publication number
20100067901
Publication date
Mar 18, 2010
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication System and Communication Apparatus
Publication number
20100002591
Publication date
Jan 7, 2010
Masahiko MIZUTANI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Passive Optical Network System, Optical Network Unit, and Optical L...
Publication number
20090317082
Publication date
Dec 24, 2009
Mitsunobu KIMURA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical communication system and optical line terminating apparatus
Publication number
20090310964
Publication date
Dec 17, 2009
Hitachi Communication Technologies, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical Branching Apparatus and Passive Optical Network System
Publication number
20090304388
Publication date
Dec 10, 2009
Kazuyori UMEMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM AND OPERATION METHOD OF THE SAME
Publication number
20090245790
Publication date
Oct 1, 2009
Masahiko Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS OF ADJUSTING OPTICAL SIGNAL TRANSMISSION TIMING
Publication number
20090214211
Publication date
Aug 27, 2009
Hitachi Communication Technologies, Ltd.
Tohru KAZAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM, OPTICAL LINE TERMINATOR AND, COMMUN...
Publication number
20090202242
Publication date
Aug 13, 2009
Masao NIIBE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network system, optical line terminating apparatus, and optical net...
Publication number
20090169209
Publication date
Jul 2, 2009
Hitachi Communication Technologies, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PON system method for receiving optical signal and OLT
Publication number
20090162053
Publication date
Jun 25, 2009
Hitachi Communication Technologies, Ltd.
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BIT SYNCHRONIZATION CIRCUIT WITH PHASE TRACKING FUNCTION
Publication number
20090123160
Publication date
May 14, 2009
Hitachi Communication Technologies, Ltd.
Yusuke Yajima
H04 - ELECTRIC COMMUNICATION TECHNIQUE