Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695565 | VCR head drum coated with diamond-like hard carbon films and the method and apparatus for manufacturing the same | Kwang Ryeol Lee, Kwang Yong Eun | 1997-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695565 | VCR head drum coated with diamond-like hard carbon films and the method and apparatus for manufacturing the same | Kwang Ryeol Lee, Kwang Yong Eun | 1997-12-09 |