Average Co-Inventor Count = 2.67
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. Sakai Chemical Industry Co., Ltd. (2 from 158 patents)
2 patents:
1. 11154469 - Fluorescent material for cosmetics, and cosmetic
2. 9937114 - Cosmetic