Average Co-Inventor Count = 3.43
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. Ogura Clutch Company, Ltd. (2 from 46 patents)
2 patents:
1. 11760600 - Spindle unit
2. 11427432 - Spindle unit