Average Co-Inventor Count = 3.00
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. (2 from 42,485 patents)
2 patents:
1. RE42414 - Drawing management device having ability to retrieve and display a desired amount of data within a desired display time
2. 5454073 - Drawing management device having ability to retrieve and display a