Average Co-Inventor Count = 7.20
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. Eisai Company, Limited (3 from 677 patents)
2. Sansho Co., Ltd. (1 from 10 patents)
3 patents:
1. 5560907 - Whitening embellisher
2. 5427775 - Whitening embellisher
3. 5041437 - Pharmaceutical preparation for percutaneous administration containing