Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403483 | Hydrophobic porous membranes and process for the manufacture thereof | Kazuaki Hayashida, Jun Kamo | 1995-04-04 |
| 5330830 | Heat-resisting porous membrane, hydrophilized heat-resisting porous membrane and production processes thereof | Kazuaki Hayashida, Jun Kamo | 1994-07-19 |
| 5149649 | Multi-layered porous hollow fiber membrane for use in cell culture | Makoto Uchida, Kanehiko Enomoto, Akihiro Sakimae, Ryozo Numazawa | 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, Akihiro Sakimae, Ryozo Numazawa | 1992-01-07 |
| 5071753 | Process for the enzymatic preparation of organic esters of ascorbic acid or erythorbic acid | Kanehiko Enomoto, Akihiro Sakimae, Ryozo Numazawa | 1991-12-10 |
| 4885244 | Method of producing hyaluronic acid | Ryozo Numazawa, Akihiro Sakimae, Hisao Onishi | 1989-12-05 |