Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814800 | Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion device | Shunji Takekawa, Masaru Nakamura, Sunao Kurimura | 2004-11-09 |
| 6747787 | Optically functional device, single crystal substrate for the device and method for its use | Yasunori Furukawa, Shunji Takekawa, Masaru Nakamura | 2004-06-08 |
| 6740935 | Semiconductor device | — | 2004-05-25 |
| 6673330 | Single crystal of lithium niobate or tantalate and its optical element, and process and apparatus for producing an oxide single crystal | Yasunori Furukawa, Shunji Takekawa, Shigeyuki Kimura | 2004-01-06 |