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 Corporation (2 from 58,129 patents)
2. Riken Corporation (2 from 852 patents)
4 patents:
1. 7570275 - Image information displaying apparatus
2. 7142191 - Image information displaying device
3. 6847025 - Semiconductor image position sensitive device
4. 6335523 - Semiconductor dark image position sensitive device