Average Co-Inventor Count = 2.93
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 (4 from 199 patents)
4 patents:
1. 6839435 - Ranking display method for game machine
2. 6832954 - Photographing game machine, photographing game processing method and information storage medium
3. 6568380 - Medal game machine
4. 6390471 - Apparatus for detecting passage of a game medium and a game machine employing same