Average Co-Inventor Count = 6.00
ph-index = 2
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. (2 from 42,494 patents)
2 patents:
1. 7016957 - Distributed data processing system and error analysis information saving method appropriate therefor
2. 6397244 - Distributed data processing system and error analysis information saving method appropriate therefor