Average Co-Inventor Count = 4.44
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. Ntn Corporation (1 from 2,464 patents)
2. Nok Corporation (1 from 779 patents)
2 patents:
1. 12017249 - Method for forming coating film on constant velocity universal joint
2. 6769699 - Cover gasket for hard disk device