Average Co-Inventor Count = 3.75
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. Nippon Sheet Glass Company, Limited (2 from 1,157 patents)
2 patents:
1. 12287503 - Light-absorbing composition and optical filter
2. 9201181 - Infrared cut filter and imaging apparatus