Average Co-Inventor Count = 5.00
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. Riso Kagaku Corporation (2 from 1,074 patents)
2 patents:
1. 5622109 - Process for producing a heat sensitive stencil sheet
2. 5498464 - Heat-sensitive stencil sheets and process