Average Co-Inventor Count = 3.83
ph-index = 3
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. (3 from 42,485 patents)
3 patents:
1. 5621438 - Pointing information processing apparatus with pointing function
2. 5408604 - Display control integrated circuit for a display having an input panel
3. 5400243 - Method of correcting print data and system of editing and printing