Average Co-Inventor Count = 2.57
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 4,233 patents)
3 patents:
1. 11465713 - Boat
2. 11440631 - Boat
3. 11364985 - Jet propelled boat