Average Co-Inventor Count = 5.46
ph-index = 1
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. Nippon Hoso' Kyokai (2 from 374 patents)
2 patents:
1. 4864400 - Television synchronization system
2. 4807040 - Signal processing filter for an image projection device utilizing an oil