Average Co-Inventor Count = 4.00
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. Aisin Seiki Kabushiki Kaisha (1 from 5,207 patents)
2. Central Japan Railway Company (1 from 118 patents)
1 patent:
1. 7047750 - Pulse tube refrigerating machine