NIPPON TELEGRAPH AND TELEPHONE CORPORATION
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- 20 1,370 US PATENTS IN FORCE
- 181 US APPLICATIONS PENDING
- Feb 01, 2018 most recent publication
Details
- 1,370 Issued Patents
- 226 Issued in last 3 years
- 167 Published in last 3 years
- 54,492 Total Citation Count
- Mar 02, 1977 Earliest Filing
- 1,546 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
MATTERS
Rank in Class
Intl Class
Technology
MATTERS
Rank in Class
- No Technologies to Display
Top Patents (by citation)
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Patent #
Title
Filing Date
Issue Date
Intl Class
CITATIONS
5280537
Digital communication system using superposed transmission of high speed and low speed digital signals
Nov 24, 92
Jan 18, 94
[H04J, H04L]
283
6173261
Grammar fragment acquisition using syntactic and semantic clustering
Dec 21, 98
Jan 09, 01
[G10L]
239
5718628
Air conditioning method in machine room having forced air-cooling equipment housed therein
Apr 26, 96
Feb 17, 98
[H05K]
208
5162933
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]
184
5214730
Multifiber optical connector plug with low reflection and low insertion loss
May 07, 92
May 25, 93
[G02B]
183
5581652
Reconstruction of wideband speech from narrowband speech using codebooks
Sep 29, 93
Dec 03, 96
[G01L]
160
5396558
Method and apparatus for settlement of accounts by IC cards
Sep 13, 93
Mar 07, 95
[H04L]
144
- No Patents to Display
Recent Publications
Publication #
Title
Filing Date
Pub Date
Intl Class
2018/0034,555
MULTI-STAGE INTERFEROMETER CIRCUIT WITH WAVEFORM SHAPING FUNCTION
Feb 19, 16
Feb 01, 18
[G02B, G02F, H04B]
2018/0034,766
COMMUNICATION PARTNER CORRESPONDENCE RELATIONSHIP COLLECTING DEVICE, COMMUNICATION PARTNER CORRESPONDENCE RELATIONSHIP COLLECTING METHOD, AND COMMUNICATION PARTNER CORRESPONDENCE RELATIONSHIP COLLECTING PROGRAM
Feb 12, 16
Feb 01, 18
[H04L]
2018/0035,467
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
Feb 23, 16
Feb 01, 18
[H04W]
2018/0024,250
SATELLITE SIGNAL RECEPTION CHARACTERISTIC ESTIMATION APPARATUS, METHOD THEREOF, AND PROGRAM THEREOF
Feb 12, 16
Jan 25, 18
[G01S]
2018/0025,670
INCONSISTENCY DETECTING METHOD, INCONSISTENCY DETECTING SYSTEM, INCONSISTENCY DETECTING DEVICE, AND PROGRAM
Feb 01, 16
Jan 25, 18
[G09C]
2018/0026,424
Electroabsorption Modulator Integrated Distributed Feedback Laser with Integrated Semiconductor Optical Amplifier, and Driving Method for Same
Feb 16, 16
Jan 25, 18
[H01S]
2018/0026,862
ESTIMATION DEVICE, ESTIMATION METHOD, AND RECORDING MEDIUM
Feb 16, 16
Jan 25, 18
[H04L]
2018/0027,293
QUALITY-OF-EXPERIENCE OPTIMIZATION SYSTEM, QUALITY-OF-EXPERIENCE OPTIMIZATION APPARATUS, RECOMMEND REQUEST APPARATUS, QUALITY-OF-EXPERIENCE OPTIMIZATION METHOD, RECOMMEND REQUEST METHOD, AND PROGRAM
Dec 24, 15
Jan 25, 18
[H04N]
2018/0027,591
WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, WIRELESS LAN ACCESS POINT, AND WIRELESS LAN STATION
Feb 23, 16
Jan 25, 18
[H04W]
2018/0020,012
MALWARE ANALYSIS SYSTEM, MALWARE ANALYSIS METHOD, AND MALWARE ANALYSIS PROGRAM
Dec 15, 15
Jan 18, 18
[H04L]
2018/0020,014
MALICIOUS COMMUNICATION PATTERN EXTRACTION DEVICE, MALICIOUS COMMUNICATION PATTERN EXTRACTION SYSTEM, MALICIOUS COMMUNICATION PATTERN EXTRACTION METHOD, AND MALICIOUS COMMUNICATION PATTERN EXTRACTION PROGRAM
Feb 03, 16
Jan 18, 18
[H04L]
2018/0011,691
RANDOM NUMBER GENERATION APPARATUS, RANDOM NUMBER GENERATION METHOD AND PROGRAM
Jan 13, 16
Jan 11, 18
[G06F]
- No Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
9880101
Flow rate measurement apparatus, antigen concentration measurement apparatus, flow cell, flow rate measurement method, and antigen concentration measurement method
Apr 05, 13
Jan 30, 18
[G01P, G01F, G01N]
9882614
Wireless signal transmitting method and wireless apparatus
Feb 04, 13
Jan 30, 18
[H04L, H04J, H04W, H04B]
9883262
Optical network system, optical switch node, master node, and node
Jun 13, 13
Jan 30, 18
[H04J, H04Q]
9871614
WDM/TDM-PON system and transmission start time correction method thereof
Jul 17, 15
Jan 16, 18
[H04L, H04J, H04B]
9872295
Wireless communication apparatus and wireless communication method
May 23, 14
Jan 16, 18
[H04L, H04W, H04B]
9866327
Distributed radio communication base station system, base band unit, remote radio unit, and method for operating distributed radio communication base station system
Oct 10, 13
Jan 09, 18
[H04W, H04B]
9857217
Opto-electronic integrated circuit, array antenna transmitter, array antenna receiver, and transmitter
Sep 21, 12
Jan 02, 18
[H01Q, G02F, G01J, H04B]
9860019
Base station apparatus, wireless communication system, and communication method
Jan 29, 15
Jan 02, 18
[H04L, H04W, H04B]
9860058
Secret computation system, arithmetic unit, secret computation method and program
Jan 16, 14
Jan 02, 18
[H04L, G06F]
9860278
Log analyzing device, information processing method, and program
Jan 30, 14
Jan 02, 18
[H04L]
- No Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2017/0111,165
PROXY COMPUTING SYSTEM, COMPUTING APPARATUS, CAPABILITY PROVIDING APPARATUS, PROXY COMPUTING METHOD, CAPABILITY PROVIDING METHOD, PROGRAM, AND RECORDING MEDIUM
ABAN
Dec 22, 16
Apr 20, 17
[H04L, G06F]
2016/0037,172
IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE ENCODING PROGRAM, AND IMAGE DECODING PROGRAM
ABAN
Apr 07, 14
Feb 04, 16
[H04N]
9247324
Wavelength selection switch system and method for controlling wavelength selection switch
Withdrawn
Feb 05, 13
Jan 26, 16
[G02B, H04J, H04Q]
2015/0358,644
VIDEO ENCODING APPARATUS AND METHOD, VIDEO DECODING APPARATUS AND METHOD, AND PROGRAMS THEREFOR
ABAN
Dec 25, 13
Dec 10, 15
[H04N]
2015/0350,678
IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE ENCODING PROGRAM, IMAGE DECODING PROGRAM, AND RECORDING MEDIA
ABAN
Dec 20, 13
Dec 03, 15
[H04N, G06T]
2015/0271,527
VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAMS THEREFOR
ABAN
Sep 20, 13
Sep 24, 15
[H04N, G06T]
2015/0249,839
PICTURE ENCODING METHOD, PICTURE DECODING METHOD, PICTURE ENCODING APPARATUS, PICTURE DECODING APPARATUS, PICTURE ENCODING PROGRAM, PICTURE DECODING PROGRAM, AND RECORDING MEDIA
ABAN
Sep 24, 13
Sep 03, 15
[H04N]
2015/0245,062
PICTURE ENCODING METHOD, PICTURE DECODING METHOD, PICTURE ENCODING APPARATUS, PICTURE DECODING APPARATUS, PICTURE ENCODING PROGRAM, PICTURE DECODING PROGRAM AND RECORDING MEDIUM
ABAN
Sep 24, 13
Aug 27, 15
[H04N]
2015/0189,276
VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAMS THEREFOR
ABAN
Jul 09, 13
Jul 02, 15
[H04N]
2015/0172,694
MOVING PICTURE ENCODING METHOD, MOVING PICTURE DECODING METHOD, MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE ENCODING PROGRAM, MOVING PICTURE DECODING PROGRAM, AND RECORDING MEDIA
ABAN
Jul 09, 13
Jun 18, 15
[H04N]
2014/0373,167
TRACE CENTER APPARATUS AND METHOD FOR ENABLING CONTENTS TO BE TRACED
ABAN
Aug 08, 13
Dec 18, 14
[G06F]
2014/0247,865
VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAM THEREFOR
ABAN
Oct 18, 12
Sep 04, 14
[H04N]
2014/0133,546
VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM
ABAN
Jun 12, 12
May 15, 14
[H04N]
2014/0119,453
VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM
ABAN
Jun 12, 12
May 01, 14
[H04N]
2014/0010,229
DATA COMMUNICATION SYSTEM, DATA COMMUNICATION TERMINAL, DATA COMMUNICATIN METHOD, AND COMPUTER PROGRAM
ABAN
Dec 27, 11
Jan 09, 14
[H04L]
2013/0301,721
MULTIVIEW IMAGE ENCODING METHOD, MULTIVIEW IMAGE DECODING METHOD, MULTIVIEW IMAGE ENCODING DEVICE, MULTIVIEW IMAGE DECODING DEVICE, AND PROGRAMS OF SAME
ABAN
Dec 05, 11
Nov 14, 13
[H04N]
2013/0218,764
ELECTRONIC SETTLEMENT METHOD, SYSTEM, SERVER, AND PROGRAM THEREOF
ABAN
Mar 18, 13
Aug 22, 13
[G06Q]
2013/0136,187
VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, AND PROGRAM THEREOF
ABAN
Aug 05, 11
May 30, 13
[H04N]
- No Patents to Display
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