Average Co-Inventor Count = 2.40
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 58,132 patents)
2 patents:
1. 7257314 - Copy control method and apparatus for a receiving system
2. 6981253 - Information processing apparatus and method, recording medium, storage medium, and program