NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 283 34
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 140 95
 
 
H04B TRANSMISSION 138 75
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 117 263
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 110 104
 
 
H04J MULTIPLEX COMMUNICATION 102 42
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 89 219
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 53 40
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 52 116
 
 
H01S DEVICES USING STIMULATED EMISSION 49 49
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0314,366 OPTICAL MODULATOR Dec 21, 12 Oct 23, 14 [G02F]
2014/0294,391 BANDWIDTH ALLOCATION DEVICE AND BANDWIDTH ALLOCATION METHOD Dec 18, 12 Oct 02, 14 [H04J, H04B]
2014/0298,028 CRYPTOGRAPHIC PROCESSING SYSTEM, CRYPTOGRAPHIC PROCESSING METHOD, CRYPTOGRAHPIC PROCESSING PROGRAM, AND KEY GENERATION DEVICE Nov 12, 12 Oct 02, 14 [H04L]
2014/0270,776 OPTICAL COMMUNICATION APPARATUS, OPTICAL ROUTE SWITCHING APPARATUS AND NETWORK Apr 26, 12 Sep 18, 14 [H04J, H04Q]
2014/0254,989 OPTICAL FIBER CABLE HAVING CONNECTOR AND ASSEMBLING METHOD THEREOF May 21, 14 Sep 11, 14 [G02B]
2014/0247,865 VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAM THEREFOR Oct 18, 12 Sep 04, 14 [H04N]
2014/0241,699 CONTENT PLAYBACK INFORMATION ESTIMATION APPARATUS AND METHOD AND PROGRAM Nov 01, 12 Aug 28, 14 [H04N]
2014/0230,375 METHOD FOR PACKING CABLE Apr 28, 14 Aug 21, 14 [B65B]
2014/0231,627 OPTO-ELECTRONIC INTEGRATED CIRCUIT, ARRAY ANTENNA TRANSMITTER, ARRAY ANTENNA RECEIVER, AND TRANSMITTER Sep 21, 12 Aug 21, 14 [G01J]
2014/0233,084 PHASE MODULATION APPARATUS Apr 26, 13 Aug 21, 14 [G02F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,867,873 Arrayed waveguide grating Jun 30, 09 Oct 21, 14 [G02B]
8,868,222 Audio quality estimation method, audio quality estimation apparatus, and computer readable recording medium recording a program May 25, 09 Oct 21, 14 [H04M, H04L, H04R, G06F, G10L]
8,859,267 Chip for optical analysis Jun 11, 07 Oct 14, 14 [C12M, B01L, G01N]
8,859,469 Protein chip and production method thereof Jan 11, 08 Oct 14, 14 [C40B, B82Y]
8,855,485 Frequency offset estimating method and frequency offset estimating apparatus Apr 14, 11 Oct 07, 14 [H01Q, H04L, H04J, H04B]
8,848,912 Terminal identification method, authentication method, authentication system, server, terminal, wireless base station, program, and recording medium Dec 19, 06 Sep 30, 14 [H04N, H04L, H04W]
8,848,933 Signal enhancement device, method thereof, program, and recording medium Mar 05, 09 Sep 30, 14 [H04B]
8,837,886 Optical fiber cable having a sheath and for setting in a conduit Aug 06, 09 Sep 16, 14 [G02B]
8,830,965 Radio communication method, radio communication system, radio base station, and radio terminal station Jul 08, 10 Sep 09, 14 [H04W]
8,817,813 System and method for adaptive channel scanning within a wireless network Oct 02, 06 Aug 26, 14 [H04J, H04W]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
2013/0058,584 IMAGE ENCODING AND DECODING FOR MULTI-VIEWPOINT IMAGES Sep 12, 12 Mar 07, 13 [G06K]
2012/0172,735 BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD Mar 16, 12 Jul 05, 12 [A61B]
2012/0123,788 CODING METHOD, DECODING METHOD, AND DEVICE AND PROGRAM USING THE METHODS Jun 22, 10 May 17, 12 [H04B, G10L]
2011/0304,897 Optical Semiconductor Module and Method for Assembling the Same Oct 09, 09 Dec 15, 11 [G02B, G02F, H01L]
2011/0273,443 SYSTEM AND A METHOD FOR THREE-DIMENSIONAL MODELING OF A THREE-DIMENSIONAL SCENE FEATURES Aug 12, 09 Nov 10, 11 [G06T]
8,009,994 Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method Apr 02, 09 Aug 30, 11 [H04B]
2011/0170,832 OPTICAL TRANSCEIVER MODULE AND METHOD OF MANUFACTURING THE OPTICAL TRANSCEIVER MODULE Jan 04, 11 Jul 14, 11 [B23P, G02B]
2011/0141,458 Coated Optical Fiber Identifying Apparatus and Coated Optical Fiber Identifying Method Jun 30, 09 Jun 16, 11 [G01N]
2011/0132,786 PACKING CONFIGURATION OF CABLE Aug 06, 09 Jun 09, 11 [B65D]
2011/0128,848 CAPACITY VARIABLE LINK APPARATUS AND CAPACITY VARIABLE LINK SETTING METHOD Feb 08, 11 Jun 02, 11 [H04L]
2011/0116,745 OPTICAL CONNECTOR, AND ASSEMBLING METHOD OF OPTICAL CONNECTOR Jan 24, 11 May 19, 11 [G02B]
2011/0108,579 PUMP RETENTION COLLAR AND METHODS FOR USING THE SAME May 19, 09 May 12, 11 [G01F, B65D]
2011/0026,585 VIDEO QUALITY OBJECTIVE ASSESSMENT METHOD, VIDEO QUALITY OBJECTIVE ASSESSMENT APPARATUS, AND PROGRAM Mar 23, 09 Feb 03, 11 [H04N]
2011/0013,694 VIDEO QUALITY OBJECTIVE ASSESSMENT METHOD, VIDEO QUALITY OBJECTIVE ASSESSMENT APPARATUS, AND PROGRAM Mar 23, 09 Jan 20, 11 [H04N, G06K]
2010/0285,612 FLOW RATE MEASUREMENT APPARATUS, ANTIGEN CONCENTRATION MEASUREMENT APPARATUS, FLOW CELL, FLOW RATE MEASUREMENT METHOD, AND ANTIGEN CONCENTRATION MEASURING METHOD Jan 15, 09 Nov 11, 10 [G01N]
2010/0245,051 Communication Method for Noncontact RF ID System, Noncontact RF ID System, and Transmitter and Receiver Jun 11, 10 Sep 30, 10 [H04Q]
2010/0247,039 OPTICAL CONNECTOR AND METHOD OF ASSEMBLING THE SAME May 09, 08 Sep 30, 10 [G02B, H05K]
2010/0233,033 FLOW CELL AND METHOD FOR MANUFACTURING THE SAME Jun 26, 07 Sep 16, 10 [B44C, B01L, B81B, B32B, B05D, G01N]
7,787,736 Semiconductor optoelectronic waveguide Jul 15, 08 Aug 31, 10 [G02B]
2010/0217,990 COMMUNICATION METHOD, RELAY SERVER DEVICE, PROGRAM, AND RECORDING MEDIUM May 28, 08 Aug 26, 10 [H04L, G06F]

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