Average Co-Inventor Count = 3.43
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. Nitto-denko Corporation (2 from 3,868 patents)
2. Menicon Co., Ltd. (1 from 241 patents)
2 patents:
1. 7710846 - Protection member and optical pickup device using the same
2. 4955900 - Intra-ocular lens