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 35
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 141 92
 
 
H04B TRANSMISSION 140 71
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 118 274
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 113 101
 
 
H04J MULTIPLEX COMMUNICATION 105 41
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 89 231
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 55 39
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 52 120
 
 
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
2014/0363,174 Quantum Repeater Network System Jun 11, 14 Dec 11, 14 [H04B]
2014/0363,337 CHIP FOR OPTICAL ANALYSIS Aug 25, 14 Dec 11, 14 [G01N]
2014/0355,678 METHODS, APPARATUSES, AND PROGRAMS FOR ENCODING AND DECODING PICTURE Dec 12, 12 Dec 04, 14 [H04N]
2014/0355,992 WAVELENGTH AND BANDWIDTH ALLOCATION METHOD Dec 28, 12 Dec 04, 14 [H04J]
2014/0341,279 FRAME RATE CONTROL METHOD, FRAME RATE CONTROL APPARATUS, AND FRAME RATE CONTROL PROGRAM Jan 21, 13 Nov 20, 14 [H04N]
2014/0334,823 WAVELENGTH AND BANDWIDTH ALLOCATION METHOD Dec 28, 12 Nov 13, 14 [H04J, H04Q]
2014/0314,366 OPTICAL MODULATOR Dec 21, 12 Oct 23, 14 [G02F]
2014/0303,470 CONDUCTIVE POLYMER FIBERS, METHOD AND DEVICE FOR PRODUCING CONDUCTIVE POLYMER FIBERS, BIOLOGICAL ELECTRODE, DEVICE FOR MEASURING BIOLOGICAL SIGNALS, IMPLANTABLE ELECTRODE, AND DEVICE FOR MEASURING BIOLOGICAL SIGNALS Nov 16, 12 Oct 09, 14 [H01B, A61B]
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]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,909,042 Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method Oct 20, 09 Dec 09, 14 [H04L, H04J, H04B]
8,909,521 Coding method, coding apparatus, coding program, and recording medium therefor May 28, 10 Dec 09, 14 [G10L]
8,909,654 Information search method, apparatus, program and computer readable recording medium Sep 10, 08 Dec 09, 14 [G06F]
8,902,756 Packet transfer processing device, packet transfer processing method, and packet transfer processing program Dec 01, 10 Dec 02, 14 [H04L]
8,902,981 Video signal generation apparatus, video signal generation method, video signal generation program, and computer readable recording medium recording the program Aug 27, 08 Dec 02, 14 [H04N]
8,902,997 PARCOR coefficient quantization method, PARCOR coefficient quantization apparatus, program and recording medium Jun 01, 10 Dec 02, 14 [H04B, G10L]
8,897,163 Wireless communication method, base station, wireless communication system, and communication apparatus Mar 10, 11 Nov 25, 14 [G01R, H04W, H04B]
8,897,306 Path management control method, path management control program, path management controller and path management control system Aug 21, 08 Nov 25, 14 [G01R, H04L, G06F]
8,897,442 Encryption device, decryption device, encryption method, decryption method, program, and recording medium Jul 22, 11 Nov 25, 14 [H04L]
8,891,555 Spatial multiplexing wireless transmission system, spatial multiplexing wireless transmission method and computer program Feb 24, 11 Nov 18, 14 [H04J, H04B]

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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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