Average Co-Inventor Count = 5.22
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. Yoshitomi Pharmaceutical Industries, Ltd. (3 from 198 patents)
2. Taito Company, Ltd. (1 from 19 patents)
3 patents:
1. 5686479 - Immunosuppressive drug
2. 5219884 - Immunosuppressant
3. 5037958 - Immunosuppressive factor