Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843170 | Process for producing vinyl acetate | Tomiya Isshiki, Yasuhiko Kijima, Akira Ito | 1989-06-27 |
| 4812703 | Electric lamp assembly | Susumu Kanematsu | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843170 | Process for producing vinyl acetate | Tomiya Isshiki, Yasuhiko Kijima, Akira Ito | 1989-06-27 |
| 4812703 | Electric lamp assembly | Susumu Kanematsu | 1989-03-14 |