Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9908971 | Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same | Hiroki Yoshioka, Midori Hirai, Yuji Yamamoto | 2018-03-06 |
| 9428609 | Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same | Hiroki Yoshioka, Midori Hirai, Yuji Yamamoto | 2016-08-30 |