Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501774 | Optical transmission apparatus for multiple wavelengths and optical transmission wavelength control method | Hiroshi Kuwahara, Norio Nagase, Tetsuya Kiyonaga, Tomoyuki Otsuka, Motoyoshi Sekiya | 2002-12-31 |