Press Release

Uncrackable quantum cryptography over 'doubled' distances
--Making it possible in the near future to link metropolises within an 800 km radius in an all-photonic way without quantum repeaters--

NTT achieved top performance in a noisy speech recognition international challenge
-Advances in distortionless speech enhancement and deep-learning speech recognition techniques-

Intention to acquire 100% ownership of NTT Com Security to enhance security services

NOTICE CONCERNING THE CANCELLATION OF TREASURY STOCK

Financial Results for the Six Months Ended September 30, 2015

High-density simultaneous compensation of distortion in wavelength-multiplexed signals using a time-reversal operation: World's first successful proof of principle

NOTICE REGARDING THE STATUS AND CONCLUSION OF STOCK REPURCHASES
(UNDER THE PROVISIONS OF NTT'S ARTICLES OF INCORPORATION PURSUANT TO PARAGRAPH 2, ARTICLE 165 OF THE COMPANIES ACT OF JAPAN)

NTT Group Announces Expansion of Partnership with SAP for SAP HANA® Enterprise Cloud

Demonstration of quantum cryptography without error rate monitoring-New scheme based on the "wave function collapse" verified experimentally-

Graphene p-n junction as an electronic beam splitter -- Key component of electron quantum optics using graphene --

Development of World's First HEVC Software Encoding Engine Supporting 60P/120P Simultaneous Transmission of Ultra high-Definition Video --Launch of SDK and Transcoder Application from NTT-AT--

NOTICE REGARDING THE STATUS OF STOCK REPURCHASES (UNDER THE PROVISIONS OF NTT'S ARTICLES OF INCORPORATION PURSUANT TO PARAGRAPH 2, ARTICLE 165 OF THE COMPANIES ACT OF JAPAN)

Programmable linear optical circuit realized on a chip -- A multifunctional optical device for quantum information experiments using photons --

NTT Develops High-Precision Scene Search Technology with Frame Accurate Video Identification - Technology dramatically improves efficiency of video production workflows by eliminating visual comparisons -

NOTICE REGARDING STOCK REPURCHASES (UNDER THE PROVISIONS OF NTT'S ARTICLES OF INCORPORATION PURSUANT TO PARAGRAPH 2, ARTICLE 165 OF THE COMPANIES ACT OF JAPAN)

Financial Results for the Three Months Ended June 30, 2015

NTT and Panasonic Tie Up for Innovative Visual Communication

The VAD Method is Recognized as a Prestigious IEEE Milestone for the Excellent Mass Production of High-quality Optical Fiber Indispensable for Building Optical Communication Networks

SDN Software Switch "Lagopus" to Be Showcased in ShowNet at Interop Tokyo 2015 - Nominated as Finalist for Best of Show Award for Work in Demonstrating SDN- based Internet Exchange -

The World's First High-speed Secret Sharing Engine for OpenStack Swift ～Developing durable/volumetric effective storage system, reducing risk of information leakage with highest speed～

Notice Regarding Stock Split, Change in Ratio of American Depositary Receipts (ADRs) to Underlying Shares, and Dividend Forecast for the Year Ending March 31, 2016

Towards the Next Stage 2.0

Financial Results for the Fiscal Year Ended March 31, 2015 and Financial Forecasts for the Fiscal Year Ending March 31, 2016

NTT transfers all shares of NTT Centerstance, Inc. to NTT DATA, Inc.

Against a dogma, quantum repeaters for long-distance quantum communication are made all photonic. --Rendering the quantum internet an ultimate challenge for the future photonic network--

Joint development of PON system with enhanced transmission capacity, distance and split ratio using wavelength and time division multiplexing technology - Report on the world's first successful field demonstration of a wide-area optical access network wit

NTT Develops World's First Professional 4K H.265/HEVC Real Time Encoder LSI - Suitable for High quality 4:2:2 Video Contribution -

Improving the lifetime of an electron spin in diamond for quantum sensing technology : Enhancing the sensitivity by an order of magnitude

Succeed in World's Top-Level 400-Gbps Transmission Field Trial ~We cost-effectively achieved 4 fold higher speed optical communications in an existing 100-Gbps-based optical network~

NOTICE REGARDING THE STATUS AND CONCLUSION OF STOCK REPURCHASES (STOCK REPURCHASES UNDER THE PROVISIONS OF NTT'S ARTICLES OF INCORPORATION PURSUANT TO PARAGRAPH 2, ARTICLE 165 OF THE COMPANIES ACT OF JAPAN)

NOTICE REGARDING THE STATUS OF STOCK REPURCHASES (STOCK REPURCHASES UNDER THE PROVISIONS OF NTT'S ARTICLES OF INCORPORATION PURSUANT TO PARAGRAPH 2, ARTICLE 165 OF THE COMPANIES ACT OF JAPAN)

Submission for Approval of Business Operation Plan for the Fiscal Year Ending March 31, 2016

NetroSphere: Towards the Transformation of Carrier Networks - A novel R&D concept to innovate the network development by accelerating network functions modularization -

HenGenTou (Deformation Lamps): A magical lighting system to produce illusory movements in static photos and paintings

World's first demonstration of interoperability of new IETF^*1 method for service chaining involving six companies -Flexible formation of service chain by packet forwarding with service identification tag-

Financial Results for the Nine Months Ended December 31, 2014

NOTICE REGARDING THE STATUS OF STOCK REPURCHASES
(STOCK REPURCHASES UNDER THE PROVISIONS OF NTT'S ARTICLES OF INCORPORATION PURSUANT TO PARAGRAPH 2, ARTICLE 165 OF THE COMPANIES ACT OF JAPAN)

"Target Microphone" Technology for Sports Broadcasting-- Clear extraction of sports sounds from spectator cheering tested in cooperation with NHK

NTT Appointed as First Gold Partner for the Tokyo 2020 Olympic and Paralympic Games

NTT and NTT Communications installed the Movable and Deployable ICT Resource Unit (MDRU), an R&D outcome of them, to a typhoon Haiyan affected area in northern Cebu in Philippines as a United Nation's disaster countermeasu