Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420616 | Oxidative process for the preparation of copper quinolinate | Seishi Ikegami | 1983-12-13 |
| RE31412 | Pressure-and-heat-sensitive copying paper | Kenji Yamamoto | 1983-10-11 |
| 4330473 | Recording material | Kenji Yamamoto | 1982-05-18 |
| 4316026 | Process for the preparation of copper quinolinate | Seishi Ikegami, Kenji Itoh, Mansuke Matsumoto | 1982-02-16 |
| 4200751 | Lactones of quinoline carboxylic acids | Seiji Ikegami | 1980-04-29 |