Average Co-Inventor Count = 4.20
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. Nidek Co., Ltd. (2 from 832 patents)
2 patents:
1. 11639848 - Eyeglass frame shape measurement device and lens processing device
2. 11022430 - Eyeglass frame shape measurement device and storage medium