Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867900 | Paint peeling composition | Keisakua Komatsu, Takashi Yamada | 1989-09-19 |
| 4844833 | Paint peeling composition and paint peeling method | Keisaku Komatsu, Takashi Yamada | 1989-07-04 |