Average Co-Inventor Count = 3.27
ph-index = 3
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 (6 from 3,322 patents)
6 patents:
1. 9932049 - Railcar bodyshell
2. 9623882 - Carbody of railcar
3. 9545933 - Air spring and railcar
4. 9315199 - Driver's cab and railcar including driver's cab
5. 9233694 - Railcar including heat-resistant floor
6. 8424463 - Interior structure for railway vehicle