Average Co-Inventor Count = 1.00
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 (1 from 4,238 patents)
1 patent:
1. 12473878 - Vessel propulsion apparatus, vessel, and vessel engine