Average Co-Inventor Count = 9.00
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. Konishiroku Photo Industry Co., Ltd. (1 from 1,252 patents)
2. Sankyo Company, Limited (1 from 613 patents)
1 patent:
1. 3951661 - Silver halide emulsion containing an arylphosphonium salt as antifoggant