Average Co-Inventor Count = 5.09
ph-index = 1
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. Other (1 from 832,680 patents)
2. Josho Gakuen Educational Foundation (1 from 8 patents)
3. Rikkyo Educational Corporation (1 from 2 patents)
4. Nibon University (1 from 1 patent)
5. Nihon University (108 patents)
6. Rikkyo Gakuin (8 patents)
2 patents:
1. 9738675 - Water-soluble photochromic compound
2. 9018194 - Vitamin D receptor modulators with partial agonist activity