Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8362244 | Method for producing nucleoside derivatives | Mitsuhiko Kojima, Shouichi Kondou, Tatsuya Ishikawa, Yoshinori Ogawa | 2013-01-29 |
| 7459582 | Methods for producing nateglinide crystals | Daisuke Takahashi, Seiichi Nishi | 2008-12-02 |
| 7208622 | Methods for producing nateglinide crystals | Daisuke Takahashi, Seiichi Nishi | 2007-04-24 |
| 5488150 | Crystals of N-(trans-4-isopropylcyclohexycarbonyl)-D-phenylalanine and methods for preparing them | Michito Sumikawa, Yoshihito Koguchi, Takao Ohgane, Yasuo Irie | 1996-01-30 |
| 5463116 | Crystals of N- (trans-4-isopropylcyclohexlycarbonyl)-D-phenylalanine and methods for preparing them | Michito Sumikawa, Yoshihito Koguchi, Takao Ohgane, Yasuo Irie | 1995-10-31 |
| 5451671 | Method of purifying 2',3'-dideoxynucleosides | Hiroshi Shiragami, Masayuki Arai, Kunisuke Izawa, Yutaka Honda, Yasuhiro Tanaka +1 more | 1995-09-19 |
| 5371269 | Method for production of .alpha.-L-aspartyl-L phenylalanine methyl ester hydrochloride | Kazutaka Nagashima | 1994-12-06 |
| 5362903 | Method for preparing .alpha.-L-aspartyl-L-phenylalanine | Shinji Fujita | 1994-11-08 |
| 4942255 | Method for producing .alpha.-aspartylphenylalanine derivatives | Tadashi Takemoto | 1990-07-17 |
| 4922011 | Method for purifying aspartic acid | Masao Nakamura | 1990-05-01 |
| 4904802 | Imides | Tadashi Takemoto | 1990-02-27 |
| 4897507 | Method for producing .alpha.-L-aspartyl-L-phenylalanine derivatives | Tadashi Takemoto | 1990-01-30 |
| 4824994 | Method for production of N-protected-alpha-L-aspartyl-L-phenylalanine methyl ester | Katsumi Sugiyama | 1989-04-25 |
| 4680403 | Process for producing N-protected-.alpha.-L-aspartyl-L-phenylalanine methyl ester | Kunio Hisamitsu, Tadashi Takemoto, Toyoto Hijiya | 1987-07-14 |
| 4332718 | Process for producing an .alpha.-L-aspartyl-L-phenylalanine lower alkyl ester | Koji Toi | 1982-06-01 |