Average Co-Inventor Count = 4.29
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. Namco Limited (3 from 199 patents)
3 patents:
1. 6390471 - Apparatus for detecting passage of a game medium and a game machine employing same
2. 6210286 - Riding game system
3. 6059666 - Riding game system