Average Co-Inventor Count = 3.00
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. Hoya Corporation (1 from 2,528 patents)
1 patent:
1. 8380456 - Jig, method and data generating apparatus for calibrating spectacle frame shape measuring apparatus, spectacle frame shape measuring apparatus and spectacle frame shape measuring calibrating system