Average Co-Inventor Count = 3.20
ph-index = 1
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. Kawasaki Jukogyo Kabushiki Kaisha (2 from 3,322 patents)
2. East Japan Railway Company (1 from 18 patents)
3. Japan Transport Engineering Company (1 from 2 patents)
2 patents:
1. 9238469 - Interior equipment installation structure for railcar
2. 9067606 - Railcar