Average Co-Inventor Count = 1.20
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 Corporation (3 from 58,131 patents)
3 patents:
1. 7171088 - Image input device
2. 6694254 - Map display
3. 6505116 - Map display