NIPPON TELEGRAPH AND TELEPHONE CORPORATION
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Stats
- 8 2,396 total patents issued
- 932 Total Apps Published
- May 07, 2013 most recent publication
Details
- 2,396 Issued Patents
- 220 Issued in last 3 years
- 272 Published in last 3 years
- 39,031 Total Citation Count
- Mar 02, 1977 Earliest Filing
- 1,195 Expired/Abandoned/Withdrawn Patents
Technologies
Intl Class
Technology
# of Patents
Rank
Top Patents (by citation)
Patent #
Title
Filing Date
Issue Date
Intl Class
Cited #
5,280,537
Digital communication system using superposed transmission of high speed and low speed digital signals
Nov 24, 92
Jan 18, 94
[H04J, H04L]
256
5,162,933
Active matrix structure for liquid crystal display elements wherein each of the gate/data lines includes at least a molybdenum-base alloy layer containing 0.5 to 10 wt. % of chromium
May 10, 91
Nov 10, 92
[G02F, H01L]
173
5,718,628
Air conditioning method in machine room having forced air-cooling equipment housed therein
Apr 26, 96
Feb 17, 98
[H05K]
138
5,214,730
Multifiber optical connector plug with low reflection and low insertion loss
May 07, 92
May 25, 93
[G02B]
135
6,266,370
Brightness-variation compensation method and coding/decoding apparatus for moving pictures
Aug 29, 97
Jul 24, 01
[H04N]
129
6,456,658
Brightness-variation compensation method and coding/decoding apparatus for moving pictures
Apr 11, 01
Sep 24, 02
[H04N]
115
5,400,329
Packet network and method for congestion avoidance in packet networks
Apr 27, 93
Mar 21, 95
[H04J]
106
Recent Publications
Publication #
Title
Filing Date
Pub Date
Intl Class
2013/0106,626
ENCODING METHOD, DECODING METHOD, ENCODING DEVICE, DECODING DEVICE, PROGRAM, AND RECORDING MEDIUM
Jul 04, 11
May 02, 13
[H03M]
2013/0101,028
ENCODING METHOD, DECODING METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM
Jul 04, 11
Apr 25, 13
[H04N]
2013/0101,038
Predicted Reference Information Generating Method, Video Encoding and Decoding Methods, Apparatuses Therefor, Programs Therefor, and Storage Media Which Store the Programs
Dec 12, 12
Apr 25, 13
[H04N]
2013/0101,049
ENCODING METHOD, DECODING METHOD, ENCODING DEVICE, DECODING DEVICE, PROGRAM, AND RECORDING MEDIUM
Jul 04, 11
Apr 25, 13
[H04N]
2013/0083,921
ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTION METHOD, DECRYPTION METHOD, PROGRAM, AND RECORDING MEDIUM
Jul 22, 11
Apr 04, 13
[H04L]
2013/0070,874
FREQUENCY OFFSET ESTIMATION APPARATUS, FREQUENCY OFFSET ESTIMATION METHOD, AND RECEPTION METHOD
Jun 17, 11
Mar 21, 13
[H04L]
2013/0051,456
VIDEO ENCODING CONTROL METHOD, VIDEO ENCODING APPARATUS AND VIDEO ENCODING PROGRAM
Apr 28, 11
Feb 28, 13
[H04N]
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
8,437,638
Optical modulation circuit and optical transmission system
Jul 04, 08
May 07, 13
[H04J, H04B]
8,432,470
Data conversion/output apparatus for digitalizing sensor data and outputting through a sensor array
Feb 22, 11
Apr 30, 13
[H04N]
8,422,360
Route switching method, server, boundary node apparatus, route switching system, and route switching program
Jun 30, 09
Apr 16, 13
[H04J]
8,422,386
Abnormal traffic detection apparatus, abnormal traffic detection method and abnormal traffic detection program
Sep 25, 08
Apr 16, 13
[G01R, H04L, H04J, G08C, G06F]
8,418,261
Stage for scanning probe microscopy and sample observation method
Jun 27, 08
Apr 09, 13
[G01Q]
8,412,935
Administration of storage systems containing three groups of data-operational, backup, and standby
Dec 29, 10
Apr 02, 13
[G06F]
8,405,773
Video communication quality estimation apparatus, method, and program
Sep 06, 06
Mar 26, 13
[H04N]
Top Inventors for This Owner
Inventor Name
Address
Patent #