Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908271 | Capsule-shaped polymer particles and process for the production thereof | Kiyoshi Kasai, Masayuki Hattori, Nobuo Sakurai | 1990-03-13 |
| 4798691 | Capsule-shaped polymer particles and process for the production thereof | Kiyoshi Kasai, Masayuki Hattori, Nobuo Sakurai | 1989-01-17 |
| 4694035 | Process for preparing large-sized polymer particles | Kiyoshi Kasai, Masayuki Hattori, Osamu Kikuchi, Haruhiro Hirai, Nobuo Sakurai | 1987-09-15 |