Average Co-Inventor Count = 1.33
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. Hitachi Medical Corporation (2 from 900 patents)
2 patents:
1. 8218730 - Mechanism and X-ray tube apparatus
2. 7104687 - X-ray diagnosis apparatus having a common cooler