Average Co-Inventor Count = 2.18
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. Sega Enterprises, Ltd. (2 from 264 patents)
2. Kabushiki Kaisha Sega (2 from 92 patents)
4 patents:
1. 7770894 - Prize acquisition game device
2. 7648142 - Prize acquisition game device
3. 6176780 - Two-player video game with method of displaying logos and instructions in a manner readable by both players
4. 5951009 - Game apparatus