Average Co-Inventor Count = 2.25
ph-index = 3
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. Kao Corporation (2 from 3,603 patents)
2. Soft Energy Co., Ltd. (1 from 1 patent)
3 patents:
1. 4952245 - Nacreous pigment containing a dye and cosmetic composition comprising
2. 4930839 - Single-legged chair
3. 4861379 - Spherical fine particulate pigment and process for preparing the same