Average Co-Inventor Count = 7.00
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. Gotoh Gut Co., Ltd. (1 from 13 patents)
2. Gunma Prefecture (1 from 6 patents)
1 patent:
1. 11948544 - Musical instrument tuner, musical performance support device and musical instrument management device