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, Ltd. (2 from 42,508 patents)
2 patents:
1. 10521261 - Management system and management method which manage computer system
2. 9621414 - Management system for managing operation and method