Average Co-Inventor Count = 3.00
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 (3 from 4,233 patents)
3 patents:
1. 11407217 - Printing device
2. 11117365 - Printing device
3. 9120631 - Board working system, board conveying apparatus, and board working apparatus