Average Co-Inventor Count = 3.00
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. Hitachi, Ltd. (3 from 42,535 patents)
3 patents:
1. 6378028 - Computer and a bus structure for switching the I/O slot connection
2. 6263394 - Bus switching structure and computer
3. 6073202 - Bus switching structure and computer