Average Co-Inventor Count = 4.44
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. Kureha Corporation (2 from 328 patents)
2 patents:
1. 7067074 - Near-infrared-absorbing composition and optical material
2. 7025908 - Optical filter and process for producing the same