Average Co-Inventor Count = 3.00
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. Sony Computer Entertainment Inc. (3 from 1,799 patents)
3 patents:
1. 7052397 - Entertainment system, recording medium and entertainment apparatus
2. 6780112 - Game device in which the character representation changes corresponding to the value of a multi-level input signal
3. 6599196 - Controllers with selectable force feedback