Average Co-Inventor Count = 5.06
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Central Japan Railway Company (15 from 118 patents)
2. Nippon Sharyo, Ltd. (9 from 51 patents)
3. Nabtesco Corporation (2 from 379 patents)
4. Nippon Sharyo Co. Ltd. (2 from 4 patents)
5. Central Japan Railway Company Nippon Sharyo, Ltd. (1 from 2 patents)
6. Tenryu Industries Co., Ltd. (1 from 2 patents)
16 patents:
1. D869335 - Passenger carrying car
2. D860049 - Passenger carrying car
3. 9751538 - Sound absorbing panel
4. 9663119 - Railroad vehicle and plug door for railroad vehicle
5. 9403540 - Railroad vehicle and plug door for railroad vehicle
6. D757605 - Passenger carrying car
7. D756843 - Passenger carrying car
8. 9193289 - Vehicle seat
9. 9028004 - Vehicle seat
10. D723819 - Vehicle seat
11. D707999 - Vehicle seat
12. D707998 - Vehicle seat
13. D701818 - Sound absorbing portions of passenger carrying car
14. D701817 - Sound absorbing portions of passenger carrying car
15. D701482 - Sound absorbing portions of passenger carrying car