Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 8354529 | Polyamine derivative and polyol derivative | Mitsuaki Chida, Masaru Kawaguchi, Kengo Otsuka, Naoshi Nagai, Takaaki Yamazaki +1 more | 2013-01-15 | |
| 8076478 | Polyamine derivative and polyol derivative | Mitsuaki Chida, Masaru Kawaguchi, Kengo Otsuka, Naoshi Nagai, Takaaki Yamazaki +1 more | 2011-12-13 | |
| 8012608 | Polymer containing sulfo group and organic electroluminescent element containing the polymer | Kazuhiko Togashi, Junko Naruse | 2011-09-06 | |
| 6555694 | Method for production of pyrrolidinone derivatives | Hajime Iizuka, Hiroshi Nagase | 2003-04-29 | $414,000 |
| 6207825 | Method for production of pyrrolidinone derivatives | Hajime Iizuka, Hiroshi Nagase | 2001-03-27 | $59,000 |
| 5969138 | Pyrrolidinone derivatives | Hiroshi Nagase, Hajime Iizuka, Takahisa Oguchi, Kazuya Sakai, Kazutoshi Horikomi +2 more | 1999-10-19 | $39,000 |