Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836565 | Image processing apparatus and method, and recording medium | — | 2004-12-28 |
| 6811833 | 4-membered ring compound and optical phase optical retardation plate using the same | Kentaro Toyooka | 2004-11-02 |