Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773240 | Optically active .alpha.-substituted carboxylic acid derivatives and method for producing the same | Eiji Ozaki, Toshitaka Uragaki, Keiichi Sakashita, Tetsuya Ikemoto, Yoshimasa Kobayashi | 1998-06-30 |
| 5597716 | Process for producing D-lactic acid and L-lactamide | Eiji Sato, Eiji Ozaki, Chinami Iida, Yoshimasa Kobayashi | 1997-01-28 |
| 5482847 | Esterase genes, esterase, recombinant plasmids and transformants containing the recombinant plasmid and methods of producing optically active carboxylic acids and their enantiomeric esters using said trasnformants | Eiji Ozaki, Ryozo Numazawa | 1996-01-09 |
| 5476791 | Process for producing optically active carboxylic acid amide | Yuri Kagawa, Ryozo Numazawa, Hisao Onishi | 1995-12-19 |
| 5473081 | Process for the preparation of l-proline derivatives | Yoshimasa Kobayashi, Kaori Tosa, Ryozo Numazawa | 1995-12-05 |
| 5455174 | Process for the stereoselective esterification of ascorbic or erythorbic acids with long-chained enol esters | Keiichi Sakashita, Shiro Miyamoto | 1995-10-03 |
| 5308765 | Esterase genes, esterase, recombinant plasmids and transformants containing the recombinant plasmid and methods of producing optically acitve carboxylic acids and their enantiomeric esters using said transformants | Eiji Ozaki, Ryozo Numazawa | 1994-05-03 |
| 5149649 | Multi-layered porous hollow fiber membrane for use in cell culture | Takao Miyamori, Makoto Uchida, Kanehiko Enomoto, Ryozo Numazawa | 1992-09-22 |
| 5149855 | Process for racemizing optically active carboxylic acid esters | Eiji Ozaki, Kanehiko Enomoto, Ryozo Numazawa, Yoshimasa Kobayashi | 1992-09-22 |
| 5079153 | Process for the preparation of organic esters of ascorbic acid or erythorbic acid using ester hydralases in organic solvents containing 100-10,000 ppm of water | Kanehiko Enomoto, Takao Miyamori, Ryozo Numazawa | 1992-01-07 |
| 5071753 | Process for the enzymatic preparation of organic esters of ascorbic acid or erythorbic acid | Kanehiko Enomoto, Takao Miyamori, Ryozo Numazawa | 1991-12-10 |
| 4885244 | Method of producing hyaluronic acid | Takao Miyamori, Ryozo Numazawa, Hisao Onishi | 1989-12-05 |
| 4629701 | Process for preparing optically active carboxylic acids and antipode esters thereof | Yuri Kagawa, Ryozo Numazawa, Hisao Onishi | 1986-12-16 |
| 4276381 | Preparation of immobilized enzymes of microorganisms | Hisao Onishi | 1981-06-30 |