Average Co-Inventor Count = 3.43
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. Kabushiki Kaisha Ace Denken (2 from 99 patents)
2 patents:
1. D371887 - Coin-to-bank bill exchanging machine
2. 5530730 - Medal counter for counting medals used in game machine