Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5991490 | Optical waveguide and optical wavelength conversion device | Kiminori Mizuuchi, Sigeki Ohnishi, Kazuhisa Yamamoto | 1999-11-23 |
| 5872884 | Optical waveguide conversion device | Kiminori Mizuuchi, Sigeki Ohnishi, Kazuhisa Yamamoto | 1999-02-16 |