Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835058 | Packing material and process for its production | Katsuo Komiya | 1989-05-30 |
| 4830921 | Packing material for liquid chromatography | Ryuichi Kitayama, Katsuo Komiya | 1989-05-16 |