Average Co-Inventor Count = 2.45
ph-index = 2
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. (5 from 832 patents)
5 patents:
1. 11639848 - Eyeglass frame shape measurement device and lens processing device
2. 9776293 - Eyeglass lens processing apparatus
3. 9031682 - Eyeglass lens supplying system
4. 8506352 - Eyeglass lens processing apparatus
5. 8448343 - Eyeglass lens processing apparatus and calibration sensor unit