Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6545784 | Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit | Hiroshi Onaka, Hideyuki Miyata, Yutaka Kai, Terumi Chikama | 2003-04-08 |
| 6417945 | Optical wavelength multiplex transmission method and optical dispersion compensation method | George Ishikawa, Hideyuki Miyata, Hiroshi Onaka, Motoyoshi Sekiya | 2002-07-09 |
| 6411411 | Optical wavelength selective control apparatus | Terumi Chikama | 2002-06-25 |
| 6384943 | Optical wavelength multiplex transmission method and optical dispersion compensation method | George Ishikawa, Hideyuki Miyata, Hiroshi Onaka, Motoyoshi Sekiya | 2002-05-07 |
| 6285479 | Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit | Hiroshi Onaka, Hideyuki Miyata, Yutaka Kai, Terumi Chikama | 2001-09-04 |
| 6252688 | Optical wavelength multiplex transmission method and optical dispersion compensation method | George Ishikawa, Hideyuki Miyata, Hiroshi Onaka, Motoyoshi Sekiya | 2001-06-26 |