Average Co-Inventor Count = 3.00
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. (2 from 833 patents)
2 patents:
1. 7014314 - Subsystem of producing dye base body used for dyeing of spectacle lenses and a spectacle lens dyeing system including the dye base body producing subsystem
2. 6520999 - Method of dyeing plastic lens and a dyeing system used therein