Average Co-Inventor Count = 6.43
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. The University of Tokyo (1 from 1,287 patents)
2. Riken Corporation (1 from 855 patents)
3. National Institutes for Quantum Science and Technology (1 from 22 patents)
4. National Institute of Radiological Sciences (59 patents)
2 patents:
1. 11389550 - Nanoparticle, contrast agent for magnetic resonance imaging containing same, and ligand compound
2. 9801958 - Polymer nanoparticle composite and composition for MRI imaging including same