Average Co-Inventor Count = 7.00
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. Hitachi, Ltd. (3 from 42,508 patents)
3 patents:
1. D804671 - Ultrasound diagnosis apparatus
2. D804032 - Ultrasound diagnosis apparatus
3. D787065 - Ultrasound diagnosis apparatus