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Nippon Air Brake Co., Ltd.

USPTO Granted Patents = 136

Forward Citations = 1,131

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103 inventors (with patents filed for the assignee):

Hideo Tamamori (14 out of 14 patents)

Yasuhisa Hata (13 out of 13 patents)

Ichiro Ishiwata (10 out of 12 patents)

4. Asaji Imanaka (9 out of 10 patents)

5. Osamu Akamatsu (8 out of 17 patents)

6. Tetsuro Arikawa (8 out of 32 patents)

7. Hitoshi Kubota (7 out of 72 patents)

8. Ryuichi Tanaka (6 out of 8 patents)

9. Katsumi Kojima (6 out of 6 patents)

10. Hideyuki Morimoto (6 out of 8 patents)

11. Toshiyuki Takahashi (5 out of 44 patents)

12. Shigeaki Doto (5 out of 8 patents)

13. Masaaki Kitaue (5 out of 5 patents)

14. Yasuo Nakao (4 out of 5 patents)

15. Minoru Nagase (4 out of 4 patents)

Core Competencies:

Hydraulic Booster

Air Brake Control System

Fluid Pressure Control Valve

Braking System

Compressed Air Supply System

Railway Vehicle Control

Moisture-Removal Device

Load Compensation Valve

Wheel-Slip Detection

Automatic Air Braking

Two-Stage Air Compressor

Mechanical Advantage Actuating Cylinder

136 patents: Sort by Forward Citations

1. 5351600 - Hydraulic booster for vehicle (1994-10-04),

2. 5297856 - Two separate high speed and low speed disc brake units for railway (1994-03-29),

3. 5253930 - Air brake control system having an electromagnetic valve device which (1993-10-19),

4. 5207486 - Braking system for vehicle (1993-05-04),

5. 5172957 - Fluid pressure control apparatus (1992-12-22),

6. 5168791 - Liquid-operated booster (1992-12-08),

7. 5146952 - Fluid pressure control valve device for a railway car (1992-09-15),

8. 5144985 - Variable load valve for railway vehicles (1992-09-08),

9. 5127316 - Pump apparatus with improved coupling between the pump and motor (1992-07-07),

10. 5125722 - Load compensation control valve (1992-06-30),

11. 5083586 - Mounting arrangement for connecting a fluid pressure valve to a pipe (1992-01-28),

12. 5052759 - Mechanical component and hydraulic pressure control valve including the (1991-10-01),

13. 5050483 - Flow control device (1991-09-24),

14. 5050383 - Hydraulic pressure control valve (1991-09-24),

15. 5046921 - Moisture-removal device for a compressed air system (1991-09-10),

Nippon Air Brake Co., Ltd. is a leading global manufacturer of braking systems and components for various industrial applications. With a rich history spanning over a century, Nippon Air Brake has established itself as a trusted provider of high-quality, innovative solutions. Their products are widely used in sectors such as rail transportation, automotive, aerospace, and industrial machinery. Through continuous research and development, they strive to enhance safety, efficiency, and sustainability in transportation and industrial sectors.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

136 Patents

#30 in

#888 in Japan

#5,788 in the World

Nippon Air Brake Co., Ltd.

Forward Citations = 1,131

103 inventors:

Hideo Tamamori (14 out of 14 patents)

Yasuhisa Hata (13 out of 13 patents)

Ichiro Ishiwata (10 out of 12 patents)

4. Asaji Imanaka (9 out of 10 patents)

5. Osamu Akamatsu (8 out of 17 patents)

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