Average Co-Inventor Count = 12.32
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. Chugai Seiyaku Kabushiki Kaisha (3 from 949 patents)
2. Other (2 from 832,843 patents)
3. Sakai Toshiyuki (1 from 1 patent)
3 patents:
1. 8569378 - p27 protein inducer
2. 8278465 - Coumarin derivative having antitumor activity
3. 7897792 - Coumarin derivative having antitumor activity