Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617251 | Flat lighting device | Kazushige Ohta, Koichi Hanasaki | 1997-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617251 | Flat lighting device | Kazushige Ohta, Koichi Hanasaki | 1997-04-01 |