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Ntt Corporation

USPTO Granted Patents = 541

% Expired Patents = 0.37

EPO Patents = 124

Trademarks = 3

Forward Citations = 164

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852 inventors (with patents filed for the assignee):

Yasushi Takatori (31 out of 31 patents)

Yasuyoshi Kojima (23 out of 28 patents)

Kiyohiko Itokawa (23 out of 30 patents)

4. Daisuke Goto (22 out of 34 patents)

5. Kazumitsu Sakamoto (19 out of 20 patents)

6. Yusuke Asai (17 out of 17 patents)

7. Masanori Nakamura (16 out of 16 patents)

8. Motoharu Sasaki (15 out of 17 patents)

9. Toshifumi Miyagi (15 out of 25 patents)

10. Yosuke Fujino (15 out of 15 patents)

11. Yasuhiko Inoue (15 out of 15 patents)

12. Tomoaki Ogawa (14 out of 29 patents)

13. Takatsune Moriyama (14 out of 22 patents)

14. Yusuke Koshikiya (13 out of 23 patents)

15. Takehiro Moriya (12 out of 151 patents)

Core Competencies:

Wireless Communication

Optical Devices

Data Processing

Interference Control

Estimation Methods

Signal Processing

Detection Devices

Optical Transmission

Remote Control Robots

Model Training

Communication Control

Information Generation

541 patents: Sort by Forward Citations

1. 12740452 - Semiconductor device and manufacturing method therefor (2026-09-15),

2. 12739705 - Wireless apparatus and wireless communication method (2026-09-15),

3. 12739658 - Relay station installation position calculation device, installation position calculation method, and installation position calculation program (2026-09-15),

4. 12739603 - Data volume exchange server, international communication system, data volume exchange method, and data volume exchange program (2026-09-15),

5. 12739559 - Acoustic signal output device (2026-09-15),

6. 12739462 - Display video selection device, display video selection method and display video selection program (2026-09-15),

7. 12739208 - Data transfer system, data transfer device, and data transfer method (2026-09-15),

8. 12739181 - Traffic data collection system, traffic data collection method, and traffic data collection program (2026-09-15),

9. 12739044 - Transmission space reproduction method and transmission space reproduction device (2026-09-15),

10. 12739038 - Ultraviolet light transmission system (2026-09-15),

11. 12738985 - Radio wave propagation environment reproduction system and radio wave propagation environment reproduction method (2026-09-15),

12. 12737677 - Determination device, determination method, and determination program (2026-09-15),

13. 12737624 - Learning apparatus, anomaly detection apparatus, learning method, anomaly detection method, and program (2026-09-15),

14. 12737508 - Centerline correction apparatus, centerline correction method, and spatial network data generation system and program (2026-09-15),

15. 12737388 - Reverse geocoding apparatus, reverse geocoding method, and program (2026-09-15),

NTT Corporation is a Japanese telecommunications company providing a wide range of services, including fixed-line and mobile telecommunications, data centers, and system integration. With a history dating back to 1952, NTT has grown to become one of the largest telecommunications companies in the world, serving customers in over 190 countries.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

541 Patents

#175 in Tokyo

#363 in Japan

#1,790 in the World

Ntt Corporation

Forward Citations = 164

852 inventors:

Yasushi Takatori (31 out of 31 patents)

Yasuyoshi Kojima (23 out of 28 patents)

Kiyohiko Itokawa (23 out of 30 patents)

4. Daisuke Goto (22 out of 34 patents)

5. Kazumitsu Sakamoto (19 out of 20 patents)

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