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. Tosoh Corporation (1 from 898 patents)
2. Research Development Corporation of Japan (1 from 256 patents)
1 patent:
1. 5895916 - Method and apparatus for adjusting electron beam apparatus