Average Co-Inventor Count = 5.31
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. Hitachi, Ltd. (5 from 42,485 patents)
5 patents:
1. D312634 - Projecting television receiver
2. D297010 - Television receiver
3. D291572 - Television receiver
4. D289161 - Television receiver
5. D285791 - Television receiver