Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814800 | Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion device | Kenji Kitamura, Shunji Takekawa, Sunao Kurimura | 2004-11-09 |
| 6747787 | Optically functional device, single crystal substrate for the device and method for its use | Yasunori Furukawa, Kenji Kitamura, Shunji Takekawa | 2004-06-08 |