Average Co-Inventor Count = 1.87
ph-index = 3
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. Sega Corporation (1 from 134 patents)
3. Kabushiki Kaisha Sega (1 from 92 patents)
4 patents:
1. D623240 - Card game device
2. D561840 - Simulated game device
3. 7273414 - Race game device
4. 6394898 - Race game device