Average Co-Inventor Count = 3.82
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. Sony Corporation (5 from 58,131 patents)
5 patents:
1. 5896116 - Liquid crystal display system
2. 5825340 - Head-mounted image display apparatus
3. 5485172 - Automatic image regulating arrangement for head-mounted image display
4. 5347396 - Photovideo camera
5. 5218439 - Photo video camera device