Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11084835 | 2,3-bisphosphinopyrazine derivative, method for producing same, transition metal complex, asymmetric catalyst, and method for producing organic boron compound | Hiroaki Iwamoto, Tsuneo Imamoto, Ken Tamura, Natsuhiro Sano | 2021-08-10 |
| 11053265 | Optically active substituted 2,3-bisphosphinoquinoxalines and processes for producing the same | Hiroaki Iwamoto, Tsuneo Imamoto, Ken Tamura | 2021-07-06 |