Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828955 | Microencapsulated particles and process for production thereof | Kiyoshi Kasai, Tatsuya Shimizu, Hiroshi Tadenuma | 1989-05-09 |
| 4798691 | Capsule-shaped polymer particles and process for the production thereof | Kiyoshi Kasai, Hiromi Takeuchi, Nobuo Sakurai | 1989-01-17 |