Average Co-Inventor Count = 5.00
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 Sega Enterprises (2 from 145 patents)
2 patents:
1. 7128651 - Card game for displaying images based on sound recognition
2. 6607443 - Game device