Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7799929 | Biotin intermediate and process for preparing the same | Masahiko Seki, Toshiaki Shimizu, Masanori Hatsuda | 2010-09-21 |
| 7439368 | Process for producing 3-acylaminobenzofuran-2-carboxylic acid derivative | Masahiko Seki, Nobuhiro Yagi, Masanori Hatsuda, Mayumi Kimura, Kazuhiko Kondo | 2008-10-21 |
| 7335778 | Intermediate for biotin and process for producing the same | Masahiko Seki, Toshiaki Shimizu, Masanori Hatsuda | 2008-02-26 |
| 5214185 | Continuous process for preparing dimethyl carbonate | Keigo Nishihira, Shuji Tanaka | 1993-05-25 |