Average Co-Inventor Count = 6.86
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. Kabushiki Kaisha Ace Denken (2 from 99 patents)
2 patents:
1. 5560467 - Exchange machine having bank note qualification determining capacity
2. 5366110 - Game token dispenser