Average Co-Inventor Count = 4.00
ph-index = 2
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 4,244 patents)
2. Yamaha Motor Manufacturing Corporation of America (1 from 29 patents)
2 patents:
1. 7690472 - Transmission for off-road vehicle
2. 7438147 - Transmission for off-road vehicle