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Yokosuka-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Band sharing communication system, line control method, line contro...
Patent number
12,160,855
Issue date
Dec 3, 2024
Nippon Telegraph and Telephone Corporation
Daisuke Goto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Band sharing communication system, line control method, line contro...
Patent number
12,010,524
Issue date
Jun 11, 2024
Nippon Telegraph and Telephone Corporation
Daisuke Goto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and wireless communication method
Patent number
11,849,487
Issue date
Dec 19, 2023
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and wireless communication method
Patent number
11,523,439
Issue date
Dec 6, 2022
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication control method, wireless communication syste...
Patent number
11,432,235
Issue date
Aug 30, 2022
Nippon Telegraph and Telephone Corporation
Akiyoshi Inoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and wireless communication control me...
Patent number
11,153,919
Issue date
Oct 19, 2021
Nippon Telegraph and Telephone Corporation
Akiyoshi Inoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and wireless communication method
Patent number
11,026,262
Issue date
Jun 1, 2021
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and wireless communication method
Patent number
10,805,958
Issue date
Oct 13, 2020
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless environment evaluation method and wireless communicaton sy...
Patent number
10,681,735
Issue date
Jun 9, 2020
Nippon Telegraph and Telephone Corporation
Akiyoshi Inoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless environment information collection system and method
Patent number
10,638,341
Issue date
Apr 28, 2020
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication apparatus, wireless communication system, an...
Patent number
10,602,367
Issue date
Mar 24, 2020
Nippon Telegraph and Telephone Corporation
Hirantha Sithira Abeysekera
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal generating circuit, optical signal transmitting apparatus, s...
Patent number
9,614,621
Issue date
Apr 4, 2017
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal generating circuit, optical signal transmitting apparatus, s...
Patent number
9,520,947
Issue date
Dec 13, 2016
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication method, base station, wireless communication...
Patent number
9,370,013
Issue date
Jun 14, 2016
Nippon Telegraph and Telephone Corporation
Tomoki Murakami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and wireless communication method
Patent number
9,276,652
Issue date
Mar 1, 2016
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for receiving frequency domain multiplexed signal and device...
Patent number
9,160,600
Issue date
Oct 13, 2015
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission method, reception method, transmitter apparatus, and r...
Patent number
8,934,782
Issue date
Jan 13, 2015
Nippon Telegraph and Telephone Corporation
Tadao Nakagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal generating circuit, optical signal transmitting apparatus, s...
Patent number
8,929,750
Issue date
Jan 6, 2015
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication method, base station, wireless communication...
Patent number
8,897,163
Issue date
Nov 25, 2014
Nippon Telegraph and Telephone Corporation
Tomoki Murakami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency offset estimating method and frequency offset estimating...
Patent number
8,855,485
Issue date
Oct 7, 2014
Nippon Telegraph and Telephone Corporation
Tadao Nakagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Chromatic dispersion value calculating apparatus, optical signal re...
Patent number
8,787,769
Issue date
Jul 22, 2014
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency offset estimation apparatus, reception apparatus, frequen...
Patent number
8,781,029
Issue date
Jul 15, 2014
Nippon Telegraph and Telephone Corporation
Tadao Nakagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Receiver device, communication system and receiving method
Patent number
8,488,696
Issue date
Jul 16, 2013
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
WIRELESS COMMUNICATION MONITORING SYSTEM, WIRELESS COMMUNICATION MO...
Publication number
20240121637
Publication date
Apr 11, 2024
Nippon Telegraph and Telephone Corporation
Akira MATSUSHITA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless Communication System And Wireless Communication Method
Publication number
20240090043
Publication date
Mar 14, 2024
Nippon Telegraph and Telephone Corporation
Riichi KUDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless Communication System And Wireless Communication Method
Publication number
20230080036
Publication date
Mar 16, 2023
Nippon Telegraph and Telephone Corporation
Riichi KUDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BAND SHARING COMMUNICATION SYSTEM, LINE CONTROL METHOD, LINE CONTRO...
Publication number
20220369116
Publication date
Nov 17, 2022
Nippon Telegraph and Telephone Corporation
Daisuke GOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BAND SHARING COMMUNICATION SYSTEM, LINE CONTROL METHOD, LINE CONTRO...
Publication number
20220279357
Publication date
Sep 1, 2022
Nippon Telegraph and Telephone Corporation
Daisuke GOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BAND SHARING COMMUNICATION SYSTEM, LINE CONTROL METHOD, LINE CONTRO...
Publication number
20220272702
Publication date
Aug 25, 2022
Nippon Telegraph and Telephone Corporation
Daisuke GOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless Communication System And Wireless Communication Method
Publication number
20210337599
Publication date
Oct 28, 2021
Nippon Telegraph and Telephone Corporation
Riichi KUDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION CONTROL METHOD, WIRELESS COMMUNICATION SYSTE...
Publication number
20200413327
Publication date
Dec 31, 2020
Nippon Telegraph and Telephone Corporation
Akiyoshi INOKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION CONTROL ME...
Publication number
20200053774
Publication date
Feb 13, 2020
Nippon Telegraph and Telephone Corporation
Akiyoshi INOKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS ENVIRONMENT EVALUATION METHOD AND WIRELESS COMMUNICATON SY...
Publication number
20190059107
Publication date
Feb 21, 2019
Nippon Telegraph and Telephone Corporation
Akiyoshi INOKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
Publication number
20180249507
Publication date
Aug 30, 2018
Nippon Telegraph and Telephone Corporation
Riichi KUDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
Publication number
20180242366
Publication date
Aug 23, 2018
Nippon Telegraph and Telephone Corporation
Riichi KUDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS ENVIRONMENT INFORMATION COLLECTION SYSTEM AND METHOD
Publication number
20180206134
Publication date
Jul 19, 2018
Nippon Telegraph and Telephone Corporation
Riichi KUDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, AN...
Publication number
20150289142
Publication date
Oct 8, 2015
Nippon Telegraph and Telephone Corporation
Hirantha Sithira Abeysekera
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, S...
Publication number
20150078765
Publication date
Mar 19, 2015
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, S...
Publication number
20150078762
Publication date
Mar 19, 2015
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION METHOD, BASE STATION, WIRELESS COMMUNICATION...
Publication number
20150036634
Publication date
Feb 5, 2015
Nippon Telegraph and Telephone Corporation
Tomoki Murakami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
Publication number
20130208619
Publication date
Aug 15, 2013
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY OFFSET ESTIMATION APPARATUS, FREQUENCY OFFSET ESTIMATION...
Publication number
20130070874
Publication date
Mar 21, 2013
Nippon Telegraph and Telephone Corporation
Tadao Nakagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION METHOD, BASE STATION, WIRELESS COMMUNICATION...
Publication number
20130039205
Publication date
Feb 14, 2013
Nippon Telegraph and Telephone Corporation
Tomoki Murakami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY OFFSET ESTIMATING METHOD AND FREQUENCY OFFSET ESTIMATING...
Publication number
20130028595
Publication date
Jan 31, 2013
Nippon Telegraph and Telephone Corporation
Tadao Nakagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTER APPARATUS, AND R...
Publication number
20120315043
Publication date
Dec 13, 2012
Nippon Telegraph and Telephone Corporation
Tadao Nakagawa
G02 - OPTICS
Information
Patent Application
METHOD FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL AND DEVICE...
Publication number
20120106618
Publication date
May 3, 2012
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CHROMATIC DISPERSION VALUE CALCULATING APPARATUS, OPTICAL SIGNAL RE...
Publication number
20120099864
Publication date
Apr 26, 2012
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, S...
Publication number
20120070159
Publication date
Mar 22, 2012
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEIVER DEVICE, COMMUNICATION SYSTEM AND RECEIVING METHOD
Publication number
20110129041
Publication date
Jun 2, 2011
Nippon Telegraph and Telephone Corporation
Koichi Ishihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE