Average Co-Inventor Count = 5.46
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. Kao Corporation (2 from 3,603 patents)
2 patents:
1. 8142768 - Cosmetic preparation
2. 6974470 - Heat-generative, steam generation sheet for face