Average Co-Inventor Count = 6.32
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 42,508 patents)
5 patents:
1. D347063 - Magnetic resonance imaging scanner
2. D308673 - Television receiver
3. D298323 - Television receiver
4. D298247 - Television receiver
5. D291572 - Television receiver