Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7119215 | Production method of citalopram, intermediate therefor and production method of the intermediate | Tetsuya Ikemoto, Wei-Guo Gao | 2006-10-10 |
| 6977306 | Citalopram hydrobromide crystal and method for crystallization thereof | Tetsuya Ikemoto, Nobuhiro Arai | 2005-12-20 |
| 6946564 | Production method of an intermediate for citalopram | Tetsuya Ikemoto | 2005-09-20 |
| 6930211 | Production methods of citalopram and intermediates therefor | Tetsuya Ikemoto | 2005-08-16 |
| 6815548 | Process for preparing a piperidine derivative | Kiyoshi Sugi, Nobushige Itaya, Tadashi Katsura, Shigeya Yamazaki, Taro Ishibashi +3 more | 2004-11-09 |
| 6777576 | Production method of 2-cyclohexyl-2-hydroxy-2-phenylacetic acid intermediate therefor and production method thereof | Tetsuya Ikemoto, Wei-Guo Gao, Mitsuhiro Takeda | 2004-08-17 |
| 6610851 | Process for preparing a piperidine derivative | Kiyoshi Sugi, Nobushige Itaya, Tadashi Katsura, Shigeya Yamazaki, Taro Ishibashi +3 more | 2003-08-26 |
| 6476227 | Piperidine derivative and process for preparing the same | Kiyoshi Sugi, Nobushige Itaya, Tadashi Katsura, Shigeya Yamazaki, Taro Ishibashi +3 more | 2002-11-05 |
| 6458975 | Production methods of citalopram and an intermediate therefor | Tetsuya Ikemoto, Wei-Guo Gao, Nobuhiro Arai | 2002-10-01 |
| 6433196 | Production method of citalopram, intermediate therefor and production method of the intermediate | Tetsuya Ikemoto, Wei-Guo Gao, Nobuhiro Arai | 2002-08-13 |
| 6433168 | Highly pure phenothiazine compound, production method thereof, production method of intermediate therefor, and hydrate and novel crystal as starting materials for the intermediate | Shigeya Yamazaki, Hiroyuki Yumoto | 2002-08-13 |
| 6433195 | Production methods of 5-phthalancarbonitrile compound and an intermediate therefor | Tetsuya Ikemoto | 2002-08-13 |
| 6395910 | Production method of 5-phthalancarbonitrile compound, intermediate therefor and production method of the intermediate | Tetsuya Ikemoto | 2002-05-28 |
| 6316628 | L-tartrate of trans-(-)-4-(4-fluorophenyl)-3-hydroxymethylpiperidine compound and process for preparing the same | Shigeya Yamazaki, Taro Ishibashi, Yoshihiro Kawada, Hiroyuki Yumoto, Taichi Yoshikawa | 2001-11-13 |
| 6310222 | Production method of 5-phthalancarbonitrile compound, intermediate therefor and production method of the intermediate | Tetsuya Ikemoto | 2001-10-30 |
| 6090940 | Method for producing potassium oxonate | Mitsuyo Sugi | 2000-07-18 |
| 5948914 | Piperidine derivative and process for preparing the same | Kiyoshi Sugi, Nobushige Itaya, Tadashi Katsura, Shigeya Yamazaki, Taro Ishibashi +3 more | 1999-09-07 |
| 5440037 | Method for production of 2-amino-6-halogenopurine derivatives | Taketo Hayashi | 1995-08-08 |
| 5391733 | Synthesis intermediates for 2-amino-6-halogenopurines | Taketo Hayashi | 1995-02-21 |
| 5389637 | 2-formylamino-6-halogenopurine | Taketo Hayashi | 1995-02-14 |