Average Co-Inventor Count = 3.00
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. Tokyo Shibaura Denki Kabushiki Kaisha (1 from 2,916 patents)
2. Chugoku Denryoku Kabushiki Kaisha (1 from 1 patent)
1 patent:
1. 4071873 - Apparatus for detecting abnormal conditions of transmitted signals