Average Co-Inventor Count = 10.00
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 High-tech Fine Systems Corporation (1 from 5 patents)
1 patent:
1. 11044838 - Railway equipment inspecting and measuring apparatus, and railway equipment inspecting and measuring method