Average Co-Inventor Count = 7.00
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. Hitachi, Ltd. (1 from 42,485 patents)
2. Hitachi Maxell, Limited (1 from 1,112 patents)
3. Hitachi Vlsi Engineering Corp. (1 from 182 patents)
1 patent:
1. 5430885 - Multi-processor system and co-processor used for the same