Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378356 | Method for purifying branched polyethylene glycol | Kyu Takeuchi | 2025-08-05 |
| 12304999 | Method for purifying polyethylene glycol compound | Ryo Kawahara, Atsushi Sato, Kyu Takeuchi | 2025-05-20 |
| 12239713 | Degradable polyethylene glycol conjugate | Hiroki Yoshioka, Masaki Kamiya, Yuji Yamamoto, Akiko Sasaki, Nobuhiro Nishiyama +5 more | 2025-03-04 |
| 12187846 | Degradable polyethylene glycol derivative | Hiroki Yoshioka, Masaki Kamiya, Yuji Yamamoto, Akiko Sasaki, Nobuhiro Nishiyama +5 more | 2025-01-07 |
| 10752732 | Purification method of polyethylene glycol having one carboxyl group | Hiroki Yoshioka | 2020-08-25 |
| 9908971 | Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same | Hiroki Yoshioka, Hitoshi Nakatsuhara, Yuji Yamamoto | 2018-03-06 |
| 9458292 | Method for purifying polyethylene glycol having one amino group | Hiroki Yoshioka, Shingo Kimura | 2016-10-04 |
| 9428609 | Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same | Hiroki Yoshioka, Hitoshi Nakatsuhara, Yuji Yamamoto | 2016-08-30 |