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Akira Misawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical network system, optical switch node, master node, and node
Patent number
9,883,262
Issue date
Jan 30, 2018
Nippon Telegraph and Telephone Corporation
Kyota Hattori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
8,909,042
Issue date
Dec 9, 2014
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
8,081,881
Issue date
Dec 20, 2011
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
8,009,994
Issue date
Aug 30, 2011
Nippon Telegraph and Telephone Corporation
Eiji Oki
Information
Patent Grant
OVPN system, OVPN terminating device, collective controlling device...
Patent number
7,894,368
Issue date
Feb 22, 2011
Nippon Telegraph and Telephone Corporation
Akira Misawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
7,720,390
Issue date
May 18, 2010
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
7,630,649
Issue date
Dec 8, 2009
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Product circuit
Patent number
4,308,471
Issue date
Dec 29, 1981
Pioneer Electronic Corporation
Akira Misawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Tuner with phase locked loop synthesizer
Patent number
4,244,055
Issue date
Jan 6, 1981
Pioneer Electronic Corporation
Akira Misawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital tuning FM stereophonic receiver including phase locked loop...
Patent number
4,228,542
Issue date
Oct 14, 1980
Pioneer Electronic Corporation
Akira Misawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tuning indicating device having a two-dimensional display of two va...
Patent number
4,165,500
Issue date
Aug 21, 1979
Pioneer Electronic Corporation
Akira Misawa
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL NETWORK SYSTEM, OPTICAL SWITCH NODE, MASTER NODE, AND NODE
Publication number
20150131991
Publication date
May 14, 2015
Nippon Telegraph and Telephone Corporation
Kyota Hattori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL NODE DEVICE, NETWORK CONTROL DEVICE, MAINTENANCE-STAFF DEVI...
Publication number
20100040367
Publication date
Feb 18, 2010
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL NODE DEVICE, NETWORK CONTROL DEVICE, MAINTENANCE-STAFF DEVI...
Publication number
20090196608
Publication date
Aug 6, 2009
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical Node Device, Network Control Device, Maintenance-Staff Devi...
Publication number
20090052895
Publication date
Feb 26, 2009
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical node device, network control device, maintenance-staff devi...
Publication number
20060056846
Publication date
Mar 16, 2006
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OVPN system, OVPN terminating device, collective controlling device...
Publication number
20040151500
Publication date
Aug 5, 2004
Akira Misawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE