Average Co-Inventor Count = 2.60
ph-index = 4
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 (4 from 3,603 patents)
4 patents:
1. 8945072 - Heat generating device
2. 8357189 - Physiology enhancing device
3. 8343203 - Steam-generating warming device
4. 7047970 - Mask