Average Co-Inventor Count = 4.00
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 Denshi Kabushiki Kaisha (1 from 208 patents)
2. Tohoku Electric Power Company, Inc. (1 from 63 patents)
1 patent:
1. 5553079 - Radio communication apparatus and method for multiplex transmission of