Average Co-Inventor Count = 3.60
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. Canon Kabushiki Kaisha (3 from 90,934 patents)
3 patents:
1. 4837123 - Mask structure for lithography, method of preparation thereof and
2. 4804600 - Lithographic mask structure and process for preparing the same
3. 4677042 - Mask structure for lithography, method for preparation thereof and