Average Co-Inventor Count = 4.44
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. Fujitsu Corporation (2 from 39,244 patents)
2 patents:
1. 4809267 - Packet data communication system with ring type transmission line
2. 4779087 - Loop transmission system with frame synchronization control