Average Co-Inventor Count = 5.00
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 Maxell, Limited (1 from 1,112 patents)
1 patent:
1. 4947081 - Dual insulation oxynitride blocking thin film electroluminescence