Average Co-Inventor Count = 7.47
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. Ntt Mobile Communications Network, Inc. (2 from 247 patents)
2 patents:
1. 5963550 - Packet transfer scheme and mobile communication system
2. 5884165 - Mobile communication systems sharing a control channel