Average Co-Inventor Count = 1.89
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 58,131 patents)
3 patents:
1. 6400891 - VTR built-in camera apparatus
2. 6009233 - Apparatus and method for recording and reproducing a video signal with
3. 5898386 - Electronic appliance system, electronic appliance and remote controller