NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology MATTERS Rank in Class
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 282 38
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 160 98
 
 
H04B TRANSMISSION 149 78
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 124 270
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 119 103
 
 
H04J MULTIPLEX COMMUNICATION 106 42
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 87 237
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 59 39
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 55 122
 
 
H01S DEVICES USING STIMULATED EMISSION 49 52
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0236,796 DIGITAL SIGNAL PROCESSING DEVICE Jul 18, 13 Aug 20, 15 [H04L, H04B]
2015/0237,420 OPTICAL SIGNAL PROCESSING APPARATUS Sep 27, 13 Aug 20, 15 [H04Q, H04B]
2015/0227,566 Content Display Device, Content Display System, Data Structure, Content Display Method, and Content Display Program Sep 10, 13 Aug 13, 15 [G06F]
2015/0229,329 ENCODING/DECODING SYSTEM FOR PARALLEL DATA Sep 06, 13 Aug 13, 15 [H03M]
2015/0229,397 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 Aug 13, 15 [H04B]
2015/0229,400 OPTICAL MULTIPLEXER/DEMULTIPLEXER Sep 13, 13 Aug 13, 15 [H04J, H04B]
2015/0229,472 CRYPTOGRAPHIC SYSTEM Jul 17, 13 Aug 13, 15 [H04L]
2015/0222,967 OPTICAL SWITCH Aug 30, 13 Aug 06, 15 [H04Q]
2015/0205,042 PLANAR LIGHTWAVE CIRCUIT Mar 26, 15 Jul 23, 15 [G02B]
2015/0205,043 OPTICAL WAVEGUIDE DEVICE AND MODULE Mar 26, 15 Jul 23, 15 [G02B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,112,772 OLT and frame transfer control method Jun 28, 12 Aug 18, 15 [H04L, H04Q, H04B]
9,106,408 Signature processing system, key generation device, signature device, verification device, signature processing method, and signature processing program Dec 08, 11 Aug 11, 15 [H04L]
9,094,973 Radio communication method, radio communication system, radio base station, and radio terminal station Jul 17, 14 Jul 28, 15 [H04W, H04B]
9,086,555 Manufacturing method of optical fiber ribbon, and optical fiber ribbon manufactured by the manufacturing method Dec 02, 13 Jul 21, 15 [G02B]
9,088,802 Video encoding method and apparatus, video decoding method and apparatus, programs therefor, and storage media for storing the programs Dec 28, 05 Jul 21, 15 [H04N]
9,082,543 Inductor Sep 14, 11 Jul 14, 15 [H03H, H03F, H01F, H01L]
9,083,476 Signal multiplexing device Jan 20, 12 Jul 14, 15 [H04L, H04J, H03L]
9,075,185 Hole-assisted optical fiber Jan 31, 13 Jul 07, 15 [G02B]
9,060,691 Constituent concentration measuring apparatus and constituent concentration measuring apparatus controlling method Nov 05, 12 Jun 23, 15 [A61B, G01N]
9,064,123 Secure product-sum combination system, computing apparatus, secure product-sum combination method and program therefor Mar 08, 12 Jun 23, 15 [H04L, G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0058,584 IMAGE ENCODING AND DECODING FOR MULTI-VIEWPOINT IMAGES ABAN Sep 12, 12 Mar 07, 13 [G06K]
2012/0288,242 OPTICAL MODULE ABAN May 09, 12 Nov 15, 12 [G02B]
2012/0172,735 BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD ABAN Mar 16, 12 Jul 05, 12 [A61B]
2012/0123,788 CODING METHOD, DECODING METHOD, AND DEVICE AND PROGRAM USING THE METHODS ABAN Jun 22, 10 May 17, 12 [H04B, G10L]
2011/0304,897 Optical Semiconductor Module and Method for Assembling the Same ABAN 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 ABAN 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 Withdrawn Apr 02, 09 Aug 30, 11 [H04B]
2011/0170,832 OPTICAL TRANSCEIVER MODULE AND METHOD OF MANUFACTURING THE OPTICAL TRANSCEIVER MODULE ABAN Jan 04, 11 Jul 14, 11 [B23P, G02B]
7,977,036 Resist pattern forming method Expired Jan 27, 06 Jul 12, 11 [G03F]
2011/0141,458 Coated Optical Fiber Identifying Apparatus and Coated Optical Fiber Identifying Method ABAN Jun 30, 09 Jun 16, 11 [G01N]
2011/0132,786 PACKING CONFIGURATION OF CABLE ABAN Aug 06, 09 Jun 09, 11 [B65D]
2011/0128,848 CAPACITY VARIABLE LINK APPARATUS AND CAPACITY VARIABLE LINK SETTING METHOD ABAN Feb 08, 11 Jun 02, 11 [H04L]
2011/0116,745 OPTICAL CONNECTOR, AND ASSEMBLING METHOD OF OPTICAL CONNECTOR ABAN Jan 24, 11 May 19, 11 [G02B]
2011/0108,579 PUMP RETENTION COLLAR AND METHODS FOR USING THE SAME ABAN May 19, 09 May 12, 11 [G01F, B65D]
7,941,361 System and method for quantitative competition and recording medium having recorded thereon program for implementing the method Expired Jun 22, 09 May 10, 11 [G06Q]
7,912,087 Capacity variable link apparatus and capacity variable link setting method Expired Jan 21, 03 Mar 22, 11 [G01R, H04J]
7,907,895 Electric field sensor device, transceiver, positional information obtaining system and information input system Expired Jun 29, 04 Mar 15, 11 [H04B]
7,894,700 Holding member for optical distribution frame and optical distribution frame Expired Jul 09, 09 Feb 22, 11 [G02B]
2011/0026,585 VIDEO QUALITY OBJECTIVE ASSESSMENT METHOD, VIDEO QUALITY OBJECTIVE ASSESSMENT APPARATUS, AND PROGRAM ABAN Mar 23, 09 Feb 03, 11 [H04N]
2011/0013,694 VIDEO QUALITY OBJECTIVE ASSESSMENT METHOD, VIDEO QUALITY OBJECTIVE ASSESSMENT APPARATUS, AND PROGRAM ABAN Mar 23, 09 Jan 20, 11 [H04N, G06K]

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