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. Adv Antest Corporation (1 from 2,253 patents)
2. Hitachi Information & Communication Engineering, Ltd. (1 from 6 patents)
1 patent:
1. 7557357 - D/A conversion device and method and charged particle beam exposure apparatus and method