Average Co-Inventor Count = 6.30
ph-index = 3
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. (3 from 42,485 patents)
3 patents:
1. 9168841 - Method of receiving charge, method of controlling charge, charge control unit and charging equipment
2. 9061597 - Quick charger and quick charging system for electric vehicle
3. D669026 - Electric vehicle charging station