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. Nitto-denko Corporation (2 from 3,870 patents)
2. Kanebo, Limited (1 from 305 patents)
2 patents:
1. 6132761 - Percutaneous absorption preparation
2. 6077528 - Percutaneous preparation