Enter assignee name

Forward Citations = 54

Loading Chart...

12 inventors (with patents filed for the assignee):

Katsumi Tomioka (3 out of 7 patents)

Kensuke Ioku (2 out of 8 patents)

Noboru Otsuki (2 out of 3 patents)

4. Toshihiko Onishi (2 out of 3 patents)

5. Masahiro Tsunemi (1 out of 4 patents)

6. Toshihiko Oonishi (1 out of 4 patents)

7. Kozo Miura (1 out of 2 patents)

8. Kenichi Shimoura (1 out of 1 patent)

9. Yuji Kondo (1 out of 2 patents)

10. Yuji Katayama (1 out of 1 patent)

11. Hiroaki Sakai (1 out of 1 patent)

12. Ken-ichi Shimoura (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 5243820 - Hydraulic circuit with compensator valve biased with highest pressure (1993-09-14),

2. 5107753 - Automatic pressure control device for hydraulic actuator driving circuit (1992-04-28),

3. 5063964 - Pipe coupling used with automatic connecting and disconnecting device (1991-11-12),

4. 5058383 - Hydraulic motor control circuit (1991-10-22),

5. 5036750 - Pilot-operated dual check valve assembly with cross-line flow valving (1991-08-06),

6. 4967999 - Flow passage coupling unit (1990-11-06),

7. 4903730 - Pipe coupling used with automatic connecting and disconnecting device (1990-02-27),

Nippon Air Brake Kabushiki Kaisha (NAB) is a leading manufacturer of air brake systems for railway vehicles. With a history dating back over a century, NAB is renowned for its high-quality products and innovative solutions in the railway industry. The company's commitment to safety and reliability has made it a trusted partner for rail operators around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#31 in Kobe

#5,301 in Japan

Kobe, Japan

Nippon Air Brake Kabushiki Kaisha