Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469823 | Optical wavelength converter and optical wavelength division multiplexing communication system using the same | Sunao Itou, Satoshi Fukutomi | 2002-10-22 |
| 6404672 | Magnetic element and magnetic memory device | Masashige Sato, Kazuo Kobayashi | 2002-06-11 |