Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643422 | Optical switch changeover controlling method, optical node device and optical switch system | Toru Katagiri, Satoshi Kuroyanagi, Tetsuya Nishi, Ichiro Nakajima | 2003-11-04 |
| 6611907 | Semiconductor memory card access apparatus, a computer-readable recording medium, an initialization method, and a semiconductor memory card | Teruto Hirota | 2003-08-26 |
| 6594412 | Optical add/drop device | Satoshi Kuroyanagi | 2003-07-15 |