External Awards

Best Inventions of 2025

Winners: Atsushi Nagao, Space Environment and Energy Laboratories, NTT, Inc.; Toshihisa Masuda, Space Environment and Energy Laboratories, NTT, Inc.

Date: October 9, 2025

Organization: TIME

For a lightning drone.

The MOC Paper Award

Winners: Takuma Tsurugaya, Device Technology Laboratories, NTT, Inc.; Yoshiho Maeda, Device Technology Laboratories, NTT, Inc.; Takuma Aihara, Device Technology Laboratories, NTT, Inc.; Takuro Fujii, Device Technology Laboratories, NTT, Inc.; Erina Kanno, Device Technology Laboratories, NTT, Inc.; Koji Takeda, Device Technology Laboratories, NTT, Inc.; Tomonari Sato, Device Technology Laboratories, NTT, Inc.; Fumio Koyama, Institute of Science Tokyo; Shinji Matsuo, Device Technology Laboratories, NTT, Inc.

Date: October 15, 2025

Organization: The 30th Microoptics Conference (MOC 2025)

For “Membrane Surface-emitting Lasers with Distributed Reflectors Exhibiting Highly-efficient Single-mode Lasing in O-band.”

Published as: T. Tsurugaya, Y. Maeda, T. Aihara, T. Fujii, E. Kanno, K. Takeda, T. Sato, F. Koyama, and S. Matsuo, “Membrane Surface-emitting Lasers with Distributed Reflectors Exhibiting Highly-efficient Single-mode Lasing in O-band,” MOC 2025, Tochigi, Japan, Oct. 2025.

Best Demo Award

Winners: Osamu Saisho, Social Informatics Laboratories, NTT, Inc./Bio-Medical Informatics Research Center, NTT, Inc.; Masami Takahashi, Social Informatics Laboratories, NTT, Inc./Bio-Medical Informatics Research Center, NTT, Inc.; Yujiro Tanaka, Bio-Medical Informatics Research Center, NTT, Inc./Device Technology Laboratories, NTT, Inc.; Daichi Matsunaga, Bio-Medical Informatics Research Center, NTT, Inc./Device Technology Laboratories, NTT, Inc.; Takafumi Inoue, Social Informatics Laboratories, NTT, Inc.; Takuro Tajima, Bio-Medical Informatics Research Center, NTT, Inc./Device Technology Laboratories, NTT, Inc.

Date: October 16, 2025

Organization: The ACM international joint conference on Pervasive and Ubiquitous Computing (UbiComp) 2025

For “Natural Thermal Tracker for Core Body Temperature Application to Improve Personal Daily Life.”

Published as: O. Saisho, M. Takahashi, Y. Tanaka, D. Matsunaga, T. Inoue, and T. Tajima, “Natural Thermal Tracker for Core Body Temperature Application to Improve Personal Daily Life,” UbiComp 2025, Espoo, Finland, Oct. 2025.

Best Paper Award

Winners: Yusuke Naito, Mitsubishi Electric Corporation; Yu Sasaki, Social Informatics Laboratories, NTT, Inc.; Takeshi Sugawara, The University of Electro-Communications

Date: October 21, 2025

Organization: The 28th Information Security Conference (ISC 25)

For “The Multi-user Security of GCM-SST and Further Enhancements.”

Published as: Y. Naito, Y. Sasaki, and T. Sugawara, “The Multi-user Security of GCM-SST and Further Enhancements,” ISC 25, Seoul, South Korea, Oct. 2025.

JC-SAT2025 Best Paper Award

Winners: Takahiro Ohno, Access Network Service Systems Laboratories, NTT, Inc.; Munehiro Matsui, Access Network Service Systems Laboratories, NTT, Inc.; Kiyohiko Itokawa, Access Network Service Systems Laboratories, NTT, Inc.; Tomohiro Tokuyasu, Access Network Service Systems Laboratories, NTT, Inc.; Fumihiro Yamashita, Access Network Service Systems Laboratories, NTT, Inc.

Date: November 6, 2025

Organization: IEICE Technical Committee on Satellite Communications

For “Verification of Particle Shape Dependence in Cloud Attenuation Using a New Model for Non-terrestrial Networks.”

Published as: T. Ohno, M. Matsui, K. Itokawa, T. Tokuyasu, and F. Yamashita, “Verification of Particle Shape Dependence in Cloud Attenuation Using a New Model for Non-terrestrial Networks,” Joint Conference on Satellite Communication (JC-SAT) 2025, Daejeon, South Korea, Nov. 2025.

Best Presentation Award

Winner: Hiroyuki Kirinuki, Computer and Data Science Laboratories, NTT, Inc.

Date: November 8, 2025

Organization: Japan Society for Software Science and Technology, Foundation of Software Engineering (FOSE)

For “A Study on the Effectiveness of Code Generation via Design Documents in LLM-based Development.”

Published as: H. Kirinuki, “A Study on the Effectiveness of Code Generation via Design Documents in LLM-based Development,” FOSE 2025, Matsuyama, Japan, Nov. 2025.

Minister of Internal Affairs and Communications Award/ACC Grand Prix in Branded Communication Category

Winner: Cyber-World Laboratory, Human Informatics Laboratories, NTT, Inc.

Date: November 13, 2025

Organization: All Japan Confederation of Creativity

For “IOWN×Perfume” live performance.

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