Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496289 | Optical exchanger | Satoshi Kuroyanagi, Tetsuya Nishi, Takuji Maeda, Isao Tsuyama | 2002-12-17 |
| 6433900 | Optical wavelength multiplexing system having a redundant configuration | Satoshi Kuroyanagi, Tetsuya Nishi, Takuji Maeda, Isao Tsuyama | 2002-08-13 |
| 6404940 | Optical cross connect apparatus and optical network | Isao Tsuyama, Satoshi Kuroyanagi | 2002-06-11 |