NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Patent Owner

Follow Compare Create Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology MATTERS Rank in Class
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 285 34
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 146 99
 
 
H04B TRANSMISSION 144 76
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 121 271
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 114 106
 
 
H04J MULTIPLEX COMMUNICATION 104 45
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 90 224
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 56 43
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 52 114
 
 
H01S DEVICES USING STIMULATED EMISSION 49 50
  • No Technologies to Display

Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0074,177 USER EXPERIENCED QUALITY ESTIMATION APPARATUS, TERMINAL BOTTLENECK DETERMINATION APPARATUS, SIMILAR OPERATION EXTRACTION APPARATUS, METHOD AND PROGRAM Mar 29, 13 Mar 12, 15 [H04L]
2015/0049,997 OPTICAL FIBER RIBBON AND OPTICAL FIBER CABLE HOUSING THE OPTICAL FIBER RIBBON Aug 28, 14 Feb 19, 15 [G02B]
2015/0046,172 ENCODING METHOD, DECODING METHOD, ENCODER, DECODER, PROGRAM AND RECORDING MEDIUM May 22, 13 Feb 12, 15 [G10L]
2015/0035,625 INDUCTOR Sep 14, 11 Feb 05, 15 [H03H, H01F]
2015/0036,210 OPTICAL AMPLIFIER DEVICE Jan 20, 12 Feb 05, 15 [H01S]
2015/0030,327 WAVELENGTH SELECTION SWITCH SYSTEM AND METHOD FOR CONTROLLING WAVELENGTH SELECTION SWITCH Feb 05, 13 Jan 29, 15 [H04Q]
2015/0032,445 NOISE ESTIMATION APPARATUS, NOISE ESTIMATION METHOD, NOISE ESTIMATION PROGRAM, AND RECORDING MEDIUM Jan 30, 13 Jan 29, 15 [G10L]
2015/0010,061 VIDEO ENCODING METHOD, DEVICE AND PROGRAM Jan 22, 13 Jan 08, 15 [H04N]
2015/0010,147 CRYPTOGRAPHIC SYSTEM, CRYPTOGRAPHIC METHOD, AND CRYPTOGRAPHIC PROGRAM Mar 01, 13 Jan 08, 15 [H04L]
2015/0003,822 SELF-DIAGNOSTIC METHOD FOR PON PROTECTION SYSTEM, AND PON PROTECTION SYSTEM Nov 15, 12 Jan 01, 15 [H04Q, H04B]

View all publication…

  • No Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,982,770 Relay station, wireless relay system, and access control method in the system that perform random access in accordance with transmission right Sep 28, 10 Mar 17, 15 [H04W, H04B]
8,983,252 Optical circuit and optical signal processing apparatus using the same Nov 14, 08 Mar 17, 15 [G02B]
8,977,120 Client signal accommodating multiplexing apparatus and method Mar 11, 11 Mar 10, 15 [H04J]
8,977,141 Digital signal processing apparatus Feb 07, 12 Mar 10, 15 [H03H, H04L, H04B]
8,971,677 Optical 90-degree hybrid circuit Jun 30, 10 Mar 03, 15 [G02B, H04B]
8,971,703 Wavelength dispersion amount estimation method, wavelength dispersion compensation circuit, and reception device Feb 01, 12 Mar 03, 15 [H04B, G01M]
8,964,581 Bandwidth variable communication method, bandwidth variable communication apparatus, transmission bandwidth determination apparatus, transmission bandwidth determination method, node apparatus, communication path setting system, communication path setting Sep 13, 10 Feb 24, 15 [H04J, H04L, H04B]
8,964,982 Cryptographic system, cryptographic communication method, encryption apparatus, key generation apparatus, decryption apparatus, content server, program, and storage medium Apr 23, 10 Feb 24, 15 [H04K, H04L]
8,964,988 Secret sharing system, sharing apparatus, share management apparatus, acquisition apparatus, secret sharing method, program and recording medium Jul 22, 11 Feb 24, 15 [H04L]
8,965,146 Advanced-format optical modulator with low power consumption and low-loss characteristics Jul 09, 10 Feb 24, 15 [G02B, G02F]

View all Patent…

  • No Patents to Display

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]
2012/0172,735 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]
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]
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]
7,859,666 Electric field sensor Expired Jul 28, 04 Dec 28, 10 [G01R]
2010/0285,612 FLOW RATE MEASUREMENT APPARATUS, ANTIGEN CONCENTRATION MEASUREMENT APPARATUS, FLOW CELL, FLOW RATE MEASUREMENT METHOD, AND ANTIGEN CONCENTRATION MEASURING METHOD ABAN 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 ABAN Jun 11, 10 Sep 30, 10 [H04Q]
2010/0247,039 OPTICAL CONNECTOR AND METHOD OF ASSEMBLING THE SAME ABAN May 09, 08 Sep 30, 10 [G02B, H05K]
2010/0233,033 FLOW CELL AND METHOD FOR MANUFACTURING THE SAME ABAN Jun 26, 07 Sep 16, 10 [B44C, B01L, B81B, B32B, B05D, G01N]
7,787,736 Semiconductor optoelectronic waveguide Expired Jul 15, 08 Aug 31, 10 [G02B]

View all Patent…

  • No Patents to Display

Top Inventors for This Owner

We are sorry but your current selection exceeds the maximum number of follows () for this membership level. Upgrade to our Level for up to follows!

Owner Follow
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
CANCEL
UPGRADE MEMBERSHIP CANCEL

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to comparisons!

UPGRADE MEMBERSHIP CANCEL

We are sorry but your current selection exceeds the maximum number of portfolios () for this membership level. Upgrade to our Level for up to portfolios!

UPGRADE MEMBERSHIP CANCEL

We are sorry but your current selection exceeds the maximum number of patents allowed in portfolios () for this membership level. Upgrade to our Level for up to patents!

UPGRADE MEMBERSHIP CANCEL