Average Co-Inventor Count = 5.00
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. (2 from 42,488 patents)
2 patents:
1. 5450610 - RISC system capable of performing calls and returns without advancing or
2. 5214786 - RISC system performing calls and returns without saving or restoring