Average Co-Inventor Count = 2.00
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-Kokusai Electric Inc. (1 from 1,258 patents)
1 patent:
1. 11469832 - Control station device and alarm issue method for control station device