Average Co-Inventor Count = 2.40
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. Azbil Corporation (2 from 353 patents)
2. Yamatake Corporation (180 patents)
2 patents:
1. 8320387 - Ring type ethernet system, ring type switch, ring connection control circuit, ring type ethernet system control method, ring type switch control method and ring connection control method
2. 8249084 - Ring connection control circuit, ring switching hub, ring ethernet system, and ring connection controlling method