Average Co-Inventor Count = 5.79
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 42,496 patents)
3 patents:
1. D313980 - Central processor for an electronic computer
2. D307420 - Central processor unit
3. D295414 - Computer display