Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424194 | 4-(cyanomethylthio)phenol enhanced peroxidase assays | Ken Otagiri, Masakazu Sugiura, Tatsuya Koizumi | 1995-06-13 |
| 5399596 | Polyfluoride sulfonium compounds and polymerization initiator thereof | Tatsuya Koizumi, Takeshi Endo | 1995-03-21 |
| 5216125 | Active ester used for production of acylated amino acids | — | 1993-06-01 |
| 5117031 | Active esters used for production of esters or amides and process for producing esters or amides | — | 1992-05-26 |
| 4990644 | Sulfonium compound and acylating agent | — | 1991-02-05 |
| 4857656 | Active esters used for production of esters or amides and process for producing esters or amides | — | 1989-08-15 |