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The Nippon Signal Co., Ltd.

USPTO Granted Patents = 89

CIPO Patents = 15

EPO Patents = 14

Forward Citations = 864

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79 inventors (with patents filed for the assignee):

Koichi Futsuhara (50 out of 51 patents)

Masayoshi Sakai (30 out of 30 patents)

Toshihito Shirai (20 out of 20 patents)

4. Norihiro Asada (12 out of 12 patents)

5. Masakazu Kato (7 out of 7 patents)

6. Hiroji Anzai (5 out of 5 patents)

7. Akira Morisada (4 out of 4 patents)

8. Noboru Sugimoto (4 out of 5 patents)

9. Masaki Takahashi (4 out of 34 patents)

10. Kazuaki Takayama (4 out of 4 patents)

11. Eishi Kawasaki (4 out of 4 patents)

12. Masahide Takahashi (3 out of 3 patents)

13. Katsuichi Inose (3 out of 3 patents)

14. Hitoshi Nozawa (3 out of 3 patents)

15. Masayoshi Esashi (3 out of 12 patents)

Core Competencies:

Baggage Inspection

Train Control

Wireless Communication

Traffic Signal Monitoring

Elastic Wave Technology

Electromagnetic Actuator

Optical Scanning

Failure Detection

Emergency Stop Switch

Load Drive Circuit

Rotation Detection Sensor

Information Generation

89 patents: Sort by Forward Citations

1. 12372483 - System for non-destructively inspecting baggage, method for nondestructively inspecting baggage, program, and recording medium (2025-07-29),

2. 12352707 - Baggage inspection device (2025-07-08),

3. 12146764 - Ranging method and range finder (2024-11-19),

4. 12140554 - Inspection system (2024-11-12),

5. 12044633 - Inspection system (2024-07-23),

6. 11340446 - Actuator (2022-05-24),

7. 9821826 - Train information announcement system (2017-11-21),

8. 9789891 - Train control apparatus (2017-10-17),

9. 9669853 - Train control system (2017-06-06),

10. 9663125 - Train control system (2017-05-30),

11. 9628998 - Wireless communication network system (2017-04-18),

12. 9581689 - Reader/writer and article sorting system (2017-02-28),

13. 9540019 - Train control device (2017-01-10),

14. 9505420 - Train control system (2016-11-29),

15. 9319163 - Wireless communication network system synchronization method (2016-04-19),

THE NIPPON SIGNAL CO., LTD. is a leading provider of railway signal systems and transportation infrastructure equipment. Established in 1926, the company has a rich history of over 90 years in the industry. With a strong focus on safety, innovation, and reliability, Nippon Signal has successfully delivered advanced signaling solutions for railways, as well as products and services for road traffic control systems. Their commitment to technological excellence and customer satisfaction has enabled them to establish a global presence and build a reputation for delivering high-quality products and solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

89 Patents

#516 in Tokyo

#1,183 in Japan

#8,382 in the World

The Nippon Signal Co., Ltd.

Forward Citations = 864

79 inventors:

Koichi Futsuhara (50 out of 51 patents)

Masayoshi Sakai (30 out of 30 patents)

Toshihito Shirai (20 out of 20 patents)

4. Norihiro Asada (12 out of 12 patents)

5. Masakazu Kato (7 out of 7 patents)

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