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Ken-ichi Takahashi
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Delay measurement device, delay measurement method, and delay measu...
Patent number
12,003,397
Issue date
Jun 4, 2024
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication device, multicast transfer system, and multicast tran...
Patent number
11,985,059
Issue date
May 14, 2024
Nippon Telegraph and Telephone Corporation
Ryuma Senoo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Software update management device and software update management me...
Patent number
11,797,291
Issue date
Oct 24, 2023
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Edge switching system, edge switching device, edge switching method...
Patent number
11,750,559
Issue date
Sep 5, 2023
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Monitoring device, network fault monitoring system, and monitoring...
Patent number
11,528,204
Issue date
Dec 13, 2022
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Log information collecting device and log information collecting me...
Patent number
11,340,976
Issue date
May 24, 2022
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Transfer device and transfer method
Patent number
11,343,179
Issue date
May 24, 2022
Nippon Telegraph and Telephone Corporation
Kazuto Toyozumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast transfer system and multicast transfer method
Patent number
11,343,112
Issue date
May 24, 2022
Nippon Telegraph and Telephone Corporation
Ryuma Senoo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission device and resource allocation method
Patent number
11,303,585
Issue date
Apr 12, 2022
Nippon Telegraph and Telephone Corporation
Shigemasa Kumagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Path information transmission device, path information transmission...
Patent number
11,296,973
Issue date
Apr 5, 2022
Nippon Telegraph and Telephone Corporation
Kazuto Toyozumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network management device and network management method
Patent number
11,212,174
Issue date
Dec 28, 2021
Nippon Telegraph and Telephone Corporation
Masatoshi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ASIC and image forming apparatus incorporating same including varia...
Patent number
10,616,444
Issue date
Apr 7, 2020
Ricoh Company, Ltd.
Ken Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Display managing arrangement with a display memory divided into a m...
Patent number
4,920,504
Issue date
Apr 24, 1990
NEC Corporation
Hachiro Sawada
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
DELAY MEASUREMENT DEVICE, DELAY MEASUREMENT METHOD, AND PROGRAM
Publication number
20240129215
Publication date
Apr 18, 2024
Nippon Telegraph and Telephone Corporation
Kazuma KAMIENOO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PATH COMPUTATION DEVICE, PATH COMPUTATION METHOD, AND PATH COMPUTAT...
Publication number
20230379238
Publication date
Nov 23, 2023
Nippon Telegraph and Telephone Corporation
Kazuto Toyozumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NETWORK CONTROL SYSTEM, PATH COMPUTATION METHOD AND PROGRAM
Publication number
20230353483
Publication date
Nov 2, 2023
Nippon Telegraph and Telephone Corporation
Hiroki MORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSFER SYSTEM, TRANSFER DEVICE, TRANSFER CONTROL DEVICE, AND PROGRAM
Publication number
20230327990
Publication date
Oct 12, 2023
Nippon Telegraph and Telephone Corporation
Takayoshi HIRASAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PERFORMANCE MONITORING DEVICE, PROGRAM AND PERFORMANCE MONITORING M...
Publication number
20230283539
Publication date
Sep 7, 2023
Nippon Telegraph and Telephone Corporation
Takayoshi HIRASAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NETWORK MONITORING DEVICE, NETWORK MONITORING METHOD, AND NETWORK M...
Publication number
20230254227
Publication date
Aug 10, 2023
Nippon Telegraph and Telephone Corporation
Hiroki MORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DELAY MEASUREMENT DEVICE, DELAY MEASUREMENT METHOD, AND PROGRAM
Publication number
20230108791
Publication date
Apr 6, 2023
Nippon Telegraph and Telephone Corporation
Hiroki Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION DELAY MEASUREMENT DEVICE, COMMUNICATION DELAY MEASURE...
Publication number
20230074703
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Takayoshi Hirasawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EDGE SWITCHING SYSTEM, EDGE SWITCHING DEVICE, EDGE SWITCHING METHO...
Publication number
20220394011
Publication date
Dec 8, 2022
Nippon Telegraph and Telephone Corporation
Satoshi NAKATSUKASA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ROUTE CONTROL DEVICE, ROUTE CONTROL METHOD, PROGRAM, AND NETWORK SY...
Publication number
20220255840
Publication date
Aug 11, 2022
Nippon Telegraph and Telephone Corporation
Hiroki MORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SOFTWARE UPDATE MANAGEMENT DEVICE AND SOFTWARE UPDATE MANAGEMENT ME...
Publication number
20220137950
Publication date
May 5, 2022
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
COMMUNICATION DEVICE, MULTICAST TRANSFER SYSTEM, AND MULTICAST TRAN...
Publication number
20220045938
Publication date
Feb 10, 2022
Nippon Telegraph and Telephone Corporation
Ryuma Senoo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION DEVICE AND RESOURCE ALLOCATION METHOD
Publication number
20210359960
Publication date
Nov 18, 2021
Nippon Telegraph and Telephone Corporation
Shigemasa KUMAGAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSFER DEVICE AND TRANSFER METHOD
Publication number
20210344592
Publication date
Nov 4, 2021
Nippon Telegraph and Telephone Corporation
Kazuto Toyozumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POWER-SAVING CONTROL APPARATUS, IMAGE PROCESSING APPARATUS, POWER-S...
Publication number
20210325958
Publication date
Oct 21, 2021
RICOH COMPANY, LTD.
Ken Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LOG INFORMATION COLLECTING DEVICE AND LOG INFORMATION COLLECTING ME...
Publication number
20210303387
Publication date
Sep 30, 2021
Nippon Telegraph and Telephone Corporation
Satoshi NAKATSUKASA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
NETWORK MANAGEMENT DEVICE AND NETWORK MANAGEMENT METHOD
Publication number
20210184926
Publication date
Jun 17, 2021
Nippon Telegraph and Telephone Corporation
Masatoshi SAITO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTICAST TRANSFER SYSTEM AND MULTICAST TRANSFER METHOD
Publication number
20210111913
Publication date
Apr 15, 2021
Nippon Telegraph and Telephone Corporation
Ryuma Senoo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PATH INFORMATION TRANSMISSION DEVICE, PATH INFORMATION TRANSMISSIO...
Publication number
20210006485
Publication date
Jan 7, 2021
Kazuto Toyozumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MONITORING DEVICE, NETWORK FAULT MONITORING SYSTEM, AND MONITORING...
Publication number
20200382393
Publication date
Dec 3, 2020
Nippon Telegraph and Telephone Corporation
Satoshi Nakatsukasa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ASIC AND IMAGE FORMING APPARATUS INCORPORATING SAME
Publication number
20190208084
Publication date
Jul 4, 2019
RICOH COMPANY, LTD.
Ken Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DATA TRANSFER CONTROL DEVICE, IMAGE PROCESSING APPARATUS, DATA TRAN...
Publication number
20160277600
Publication date
Sep 22, 2016
Ken TAKAHASHI
G06 - COMPUTING CALCULATING COUNTING