Average Co-Inventor Count = 7.23
ph-index = 2
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 (4 from 3,333 patents)
2. Sumitomo Electric Industries, Limited (1 from 10,273 patents)
4 patents:
1. 10464581 - Carbody support device and railway vehicle
2. 10464582 - Carbody support device and railway vehicle
3. 9932050 - Carbody support device and railway vehicle
4. 9340217 - Railcar bogie