Average Co-Inventor Count = 4.09
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. 5368310 - Shovel type game machine
2. 5358260 - Displaying and conveying apparatus and game machine using the same
3. 5190286 - Image synthesizing system and shooting game machine using the same