Average Co-Inventor Count = 8.89
ph-index = 2
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. Fujimoto Brothers Co., Ltd. (2 from 3 patents)
2 patents:
1. 6391914 - Optically active aminopentane derivatives
2. 6214859 - Ethylamine derivatives