Average Co-Inventor Count = 4.44
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. (1 from 42,496 patents)
2. Hitachi Solutions, Ltd. (1 from 77 patents)
2 patents:
1. 12454439 - People flow prediction method and people flow prediction system
2. 10922632 - People flow prediction device