Average Co-Inventor Count = 6.64
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. (4 from 42,485 patents)
4 patents:
1. 5940274 - Casing for computer and computer employing the same casing with
2. 5819185 - Portable satellite communication apparatus
3. D394246 - Computer housing
4. D389464 - Computer