Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902885 | Production of L-ascorbic acid | Kunio Takanohashi, Toru Yamano | 1999-05-11 |
| 5424478 | Process for producing vitamin A derivatives | Tadashi Hanaoka, Kunio Takanohashi | 1995-06-13 |
| 4845246 | Ascorbic acid ester | Kunio Takanohashi, Toru Yamano | 1989-07-04 |
| 4794182 | 2-Alkyl-4-amino-5-aminomethylpyrimidines | Kunio Takanohashi, Toru Yamano | 1988-12-27 |