Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10125146 | Crystalline methyl (4R,12aS)-7-(benzyloxy)-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylate | Moriyasu Masui, Daisuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2018-11-13 |
| 10125147 | Crystalline methyl (4R,12aS)-7-(benzyloxy)-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylate | Moriyasu Masui, Daisuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2018-11-13 |
| 10000508 | Crystalline dimethyl 3-(benzyloxy)-1-(2,2-dimethoxyethyl)-4-oxo-1,4-dihydropyridine-2,5-dicarboxylate | Moriyasu Masui, Daisuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2018-06-19 |
| 9969750 | Method of producing (3S,11aR)-6,8-dihalo-3-methyl-2,3,11,11a-tetrahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-5,7-diones | Moriyasu Masui, Daisuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2018-05-15 |
| 9802959 | Method of producing (4R,12aS)-7,9-dihalo-4-methyl-3,4,12,12a-tetrahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazine-6,8-diones | Moriyasu Masui, Diasuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2017-10-31 |
| 9650394 | Methods of producing substituted (3S,11aR)-6-hydroxy-3-methyl-5,7-dioxo-2,3,5,7,11,11a-Hexahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-8-carboxamides | Moriyasu Masui, Daisuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2017-05-16 |
| 9505783 | Method of producing pyrone and pyridone derivatives | Kazuya Okamoto, Moriyasu Masui, Toshiyuki Akiyama | 2016-11-29 |
| 9321789 | Methods of producing substituted (4R,12AS)-7-hydroxy-4-methyl-6,8-dioxo-3,4,6,8,12,12A-hexahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-B][1,3]oxazine-9-carboxamides | Moriyasu Masui, Diasuke Yamada, Fumiya Ikarashi, Kazuya Okamoto | 2016-04-26 |
| 9260453 | Method for producing pyrone and pyridone derivatives | Kazuya Okamoto, Moriyasu Masui, Toshiyuki Akiyama | 2016-02-16 |
| 8865907 | Method of producing pyrone and pyridone derivatives | Kazuya Okamoto, Moriyasu Masui, Toshiyuki Akiyama | 2014-10-21 |