Average Co-Inventor Count = 8.54
ph-index = 4
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 Corporation (7 from 134 patents)
7 patents:
1. 8382579 - Card for use with a game apparatus
2. 8191896 - Card game device, card data reader, card game control method, recording medium, program, and card
3. 8172229 - Card game device, card data reader, card game control method, recording medium, program, and card
4. 8020869 - Card game device, card data reader, card game control method, recording medium, program, and card
5. 7556197 - Card stack reader, card thereof, card case, method for manufacturing card, game machine using the same, computer-readable storage medium on which game program is recorded
6. 7431297 - Card game device, card data reader, card game control method, recording medium, program, and card
7. 7357321 - Card stack reader, card thereof, card case, method for manufacturing card, game machine using the same, computer-readable storage medium on which game program is recorded