Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10526457 | Narrowly distributed multi-armed polyethylene glycol compounds, hydrogels, and methods | Elazer R. Edelman, Natalie Artzi, Hyun Seok Song, Yuji Yamamoto, Hiroki Yoshioka | 2020-01-07 |
| 9029568 | Branched hetero polyfunctional polyoxyalkylene compound and intermediate thereof | Masaki Kamiya | 2015-05-12 |
| 8952203 | Method for manufacturing hydroxyl group-containing acetal compound | Takashi Ichikawa, Shuichi Yoshimura | 2015-02-10 |
| 8828373 | Polyalkylene glycol derivative and modified bio-related substance | Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi | 2014-09-09 |
| 8816099 | Polyfunctional polyoxyalkylene compound, and producing method and intermediate thereof | Masaki Kamiya, Tsuyoshi Takehana | 2014-08-26 |
| 8716435 | Multibranched polyoxyalkylene compound and producing method thereof | Tsuyoshi Takehana, Chika Itoh | 2014-05-06 |
| 8569444 | Polyalkylene glycol derivative and process for producing same | Chika Itoh, Shuichi Yoshimura, Tsuyoshi Takehana | 2013-10-29 |
| 8501998 | Method for producing polyoxyalkylene derivative and polyoxyalkylene derivative | Satoshi Matsuo, Kazuhiro Hashimoto, Chika Itoh | 2013-08-06 |
| 8163869 | Purification method of carboxyl group-containing polyoxyethylene derivative | Shuichi Yoshimura, Satoshi Matsuo, Takashi Ichikawa | 2012-04-24 |
| 8097692 | Purification method of high-molecular-weight polyoxyalkylene derivative | Shuichi Yoshimura, Chika Itoh | 2012-01-17 |
| 8034981 | Modified bio-related substance, process for producing the same, and intermediate | Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi | 2011-10-11 |
| 8003117 | Polyalkylene glycol derivative and modified bio-related substance | Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi | 2011-08-23 |
| 7851491 | Modified bio-related substance, process for producing the same, and intermediate | Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi | 2010-12-14 |
| 7524875 | Modified bio-related substance, process for producing the same, and intermediate | Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi | 2009-04-28 |