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. Yamaha Hatsudoki Kabushiki Kaisha (2 from 4,233 patents)
2 patents:
1. 10840769 - Rotating electrical machine apparatus
2. 10486784 - Rotating electrical machine apparatus