Average Co-Inventor Count = 6.00
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. (1 from 42,496 patents)
2. The Okinawa Electric Power Company, Incorporated (1 from 1 patent)
3. Okinawa New Energy Development Co., Inc. (1 from 1 patent)
4. The Okiden Global Systems Company, Incorporated (1 from 1 patent)
1 patent:
1. 9124138 - Power grid operation control system, device, and method