Average Co-Inventor Count = 2.86
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. Sanyo Color Works, Ltd. (2 from 8 patents)
2 patents:
1. 11549018 - Pigment composition
2. 6960252 - Yellow pigment composition for image recording and process for producing the same