Average Co-Inventor Count = 4.44
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. Tanabe Seiyaku Company, Limited (2 from 324 patents)
2 patents:
1. 5725880 - Pharmaceutical preparation controlled to release medicinal active
2. 5614220 - Pharmaceutical preparation controlled to release medicinal active