Average Co-Inventor Count = 7.00
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 42,485 patents)
2 patents:
1. 12182736 - Method for estimating intra-building traffic, and system for estimating intra-building traffic
2. 11623842 - Building human flow estimation system and estimation method