Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6914151 | Crystallization processes for the formation of stable crystals of aspartame derivative | Shigeru Kawahara, Akihiro Kishishita, Tadashi Takemoto | 2005-07-05 |
| 6844465 | Method for preparing highly stable crystals of aspartame derivative | Shigeru Kawahara, Akihiro Kishishita, Tadashi Takemoto | 2005-01-18 |
| 6841183 | Process for producing aspartame derivatives, process for purifying aspartame derivatives, production intermediates, and process for producing production intermediates | Shinji Fujita, Yuuichi Aoki, Shigeru Kawahara, Tadashi Takemoto, Eriko Ono | 2005-01-11 |
| 6822111 | Process for production of aspartyl dipeptide ester derivatives | Shigeru Kawahara, Tadashi Takemoto | 2004-11-23 |
| 6818243 | Crystals of aspartame derivative | Yuuichi Aoki, Eriko Ono, Tadashi Takemoto | 2004-11-16 |
| 6794531 | Process for production of aspartyl dipeptide ester derivative, novel production intermediate therefor, and process for production thereof | Yuuichi Aoki, Tadashi Takemoto, Yusuke Amino, Nao Funakoshi, Eriko Ono | 2004-09-21 |
| 6790470 | Aspartame derivative crystal and process for producing the same | Akihiro Kishishita, Hirotoshi Ishida, Takeshi Nagai | 2004-09-14 |
| 6693214 | Intermediate for sweetener with high sweetness and process for producing the same | Shigeru Kawahara, Kenichi Mori, Tadashi Takemoto | 2004-02-17 |
| 6613933 | Process for separating and purifying aspartame and a derivative thereof | Akihiro Kishishita | 2003-09-02 |
| 6538133 | Process for producing xylitol of high purity | Yuuichi Aoki, Eriko Ono | 2003-03-25 |
| 6444251 | Sweetener compositions containing aspartame and aspartame derivative | Akihiro Kishishita | 2002-09-03 |
| 6372278 | Sweetener composition | Hirotoshi Ishida, Akihiro Kishishita, Takeshi Nagai, Atsuhiko Hirano | 2002-04-16 |
| 6372279 | Sweetener composition | Hirotoshi Ishida, Akihiro Kishishita, Takeshi Nagai, Atsuhiko Hirano | 2002-04-16 |
| 6346642 | Mixed crystals comprising aspartame and aspartame derivative and process for producing the same | Akihiro Kishishita | 2002-02-12 |
| 5530155 | Process for recovering L-phenylalanine | Toyoto Hijiya, Chiaki Mochizuki, Tadashi Takemoto | 1996-06-25 |
| 5371269 | Method for production of .alpha.-L-aspartyl-L phenylalanine methyl ester hydrochloride | Satoji Takahashi | 1994-12-06 |