Average Co-Inventor Count = 1.50
ph-index = 3
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 58,132 patents)
3 patents:
1. 6683654 - Flange back focus adjustment mechanism for a video camera
2. 5469789 - Printing sheet making and printing apparatus
3. 5456175 - Printing sheet making and printing apparatus