Average Co-Inventor Count = 3.27
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 (3 from 4,237 patents)
3 patents:
1. 11548382 - Vehicle
2. 10744830 - Vehicle
3. 10245947 - Vehicle including a shiftable transmission with operation lever