Average Co-Inventor Count = 3.00
ph-index = 2
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. 6426885 - Inverter device and motor driving device provided with inrush current prevention circuit
2. 6400539 - Inverter device and motor driving device provided with inrush prevention circuit