Average Co-Inventor Count = 4.44
ph-index = 2
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. Dainippon Ink and Chemicals, Incorporated (2 from 630 patents)
2 patents:
1. 4859555 - Electrophotographic printing plate comprising disazo and perynone
2. 4640887 - Photosensitive image-forming material comprised of carboxyl groups