Average Co-Inventor Count = 4.60
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. (4 from 42,535 patents)
4 patents:
1. 11443564 - Vehicle management system, vehicle management device, and vehicle management method
2. 11333524 - Information management system, information management method, and information management device
3. 10510167 - Geological formation and log visualization
4. 9990588 - System for predicting amount of production and method for predicting amount of production