Average Co-Inventor Count = 17.99
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 42,496 patents)
2 patents:
1. 5880497 - Semiconductor integrated circuit device having capacitance element and
2. 5508540 - Semiconductor integrated circuit device and process of manufacturing the