Average Co-Inventor Count = 3.86
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 (3 from 3,333 patents)
2. West Japan Railway Company (2 from 4 patents)
3 patents:
1. 8931418 - Bodyshell structure of railcar
2. 8701566 - Railcar
3. 7547053 - Substrate gripping apparatus, substrate gripping method and substrate releasing method