Membership
Tour
Register
Log in
Seisho Yasukawa
Follow
Person
Suginami-ku, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Topology design apparatus, topology design method and program
Patent number
11,838,186
Issue date
Dec 5, 2023
Nippon Telegraph and Telephone Corporation
Kojun Koshiji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control apparatus, control method and program
Patent number
11,838,452
Issue date
Dec 5, 2023
Nippon Telegraph and Telephone Corporation
Hiroyuki Kitada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Local wavelength defrag apparatus, local wavelength defrag method a...
Patent number
11,811,454
Issue date
Nov 7, 2023
Nippon Telegraph and Telephone Corporation
Kojun Koshiji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Demand prediction apparatus, demand prediction method and program f...
Patent number
11,757,741
Issue date
Sep 12, 2023
Nippon Telegraph and Telephone Corporation
Mika Ishizuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control apparatus, connection status registration method and program
Patent number
11,522,614
Issue date
Dec 6, 2022
Nippon Telegraph and Telephone Corporation
Shingo Okada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control apparatus and control method
Patent number
11,509,398
Issue date
Nov 22, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tojo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System control apparatus, system control method and program
Patent number
11,463,745
Issue date
Oct 4, 2022
Nippon Telegraph and Telephone Corporation
Takafumi Okuyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Quality information collection system, quality information collecti...
Patent number
11,277,661
Issue date
Mar 15, 2022
Nippon Telegraph and Telephone Corporation
Hiroshi Inoue
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Route calculation method, route calculation apparatus and program
Patent number
11,196,659
Issue date
Dec 7, 2021
Nippon Telegraph and Telephone Corporation
Takuma Tsubaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of setting multicast transfer route and method of multicast...
Patent number
7,792,099
Issue date
Sep 7, 2010
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast communication path calculation method and multicast commu...
Patent number
7,693,074
Issue date
Apr 6, 2010
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast communication path calculation method and multicast commu...
Patent number
7,652,998
Issue date
Jan 26, 2010
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast transfer route setting method, and multicast label switch...
Patent number
7,583,601
Issue date
Sep 1, 2009
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ATM switch for ensuring cell sequence
Patent number
7,474,664
Issue date
Jan 6, 2009
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ATM switch for distributing cells to avoid blocking in the ATM switch
Patent number
7,339,935
Issue date
Mar 4, 2008
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ATM switch having output buffers
Patent number
7,292,576
Issue date
Nov 6, 2007
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ATM switch
Patent number
7,136,391
Issue date
Nov 14, 2006
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ATM switch
Patent number
5,892,604
Issue date
Apr 6, 1999
Nippon Telegraph & Telephone Corporation
Naoaki Yamanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
TOPOLOGY DESIGN APPARATUS, TOPOLOGY DESIGN METHOD AND PROGRAM
Publication number
20230017693
Publication date
Jan 19, 2023
Nippon Telegraph and Telephone Corporation
Kojun KOSHIJI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DEMAND PREDICTION APPARATUS, DEMAND PREDICTION METHOD AND PROGRAM
Publication number
20220353161
Publication date
Nov 3, 2022
Nippon Telegraph and Telephone Corporation
Mika ISHIZUKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL APPARATUS, CONTROL METHOD AND PROGRAM
Publication number
20220279249
Publication date
Sep 1, 2022
Nippon Telegraph and Telephone Corporation
Hiroyuki KITADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOCAL WAVELENGTH DEFRAG APPARATUS, LOCAL WAVELENGTH DEFRAG METHOD A...
Publication number
20220263578
Publication date
Aug 18, 2022
Nippon Telegraph and Telephone Corporation
Kojun KOSHIJI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL APPARATUS AND CONTROL METHOD
Publication number
20220103464
Publication date
Mar 31, 2022
Nippon Telegraph and Telephone Corporation
Shingo OKADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL APPARATUS AND CONTROL METHOD
Publication number
20220014275
Publication date
Jan 13, 2022
Nippon Telegraph and Telephone Corporation
Takuya TOJO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM CONTROL APPARATUS, SYSTEM CONTROL METHOD AND PROGRAM
Publication number
20220007064
Publication date
Jan 6, 2022
Nippon Telegraph and Telephone Corporation
Takafumi OKUYAMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL APPARATUS, CONNECTION STATUS REGISTRATION METHOD AND PROGRAM
Publication number
20220006529
Publication date
Jan 6, 2022
Nippon Telegraph and Telephone Corporation
Shingo OKADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
QUALITY INFORMATION COLLECTION SYSTEM, QUALITY INFORMATION COLLECTI...
Publication number
20210400336
Publication date
Dec 23, 2021
Nippon Telegraph and Telephone Corporation
Hiroshi INOUE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NETWORK CONTROL APPARATUS, NETWORK CONTROL METHOD AND PROGRAM
Publication number
20210168051
Publication date
Jun 3, 2021
Nippon Telegraph and Telephone Corporation
Takafumi OKUYAMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ROUTE CALCULATION METHOD, ROUTE CALCULATION DEVICE, AND PROGRAM
Publication number
20210006486
Publication date
Jan 7, 2021
Nippon Telegraph and Telephone Corporation
Takuma TSUBAKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD OF SETTING MULTICAST TRANSFER ROUTE AND METHOD OF MULTICAST...
Publication number
20090028149
Publication date
Jan 29, 2009
Nippon Telegraph and Telephone Corporation
Seisho YASUKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTICAST COMMUNICATION PATH CALCULATION METHOD AND MULTICAST COMMU...
Publication number
20080013465
Publication date
Jan 17, 2008
NIPPON TELEGRAPH AND TELEPHONE CORP.
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multicast transfer route setting method, and multicast label switch...
Publication number
20060147204
Publication date
Jul 6, 2006
Nippon Telegraph and Telephone Corporation
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ATM switch
Publication number
20050083939
Publication date
Apr 21, 2005
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ATM switch
Publication number
20050053067
Publication date
Mar 10, 2005
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ATM switch
Publication number
20050053096
Publication date
Mar 10, 2005
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multicast communication path calculation method and multicast commu...
Publication number
20040218536
Publication date
Nov 4, 2004
NIPPON TELEGRAPH AND TELEPHONE CORP.
Seisho Yasukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE