Average Co-Inventor Count = 3.16
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. Konishiroku Photo Industry Co., Ltd. (3 from 1,252 patents)
3 patents:
1. 4363871 - Light-sensitive photographic material
2. 4358533 - Silver halide photographic material
3. 4264721 - Color photographic materials