Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880881 | Sizing agents for carbon fibers | — | 1989-11-14 |
| 4831312 | Speed control device for d-c motors | Akira Okazaki | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880881 | Sizing agents for carbon fibers | — | 1989-11-14 |
| 4831312 | Speed control device for d-c motors | Akira Okazaki | 1989-05-16 |