Average Co-Inventor Count = 4.48
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. Toppan Printing Co., Ltd. (4 from 1,268 patents)
4 patents:
1. 5559621 - Liquid crystal having a plurality of rectilinear barrier members
2. 5232634 - Color filter for multi-color liquid-crystal display panel and process of
3. 4268158 - Dry planographic printing apparatus
4. 4175958 - Dry planographic printing method and plate made by electrophotographic