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. (2 from 42,485 patents)
2. Hitachi Microcomputer Engineering, Ltd. (1 from 149 patents)
2 patents:
1. 4893168 - Semiconductor integrated circuit device including bonding pads and
2. 4862068 - LSI logic circuit