Average Co-Inventor Count = 5.00
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 Corporation (1 from 5,451 patents)
1 patent:
1. 10789915 - Acoustic string instrument, and methods for manufacturing and repairing same