Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782202 | Optical communication method, optical linking device and optical communication system | Hiroshi Arita, Tetsuaki Nakamikawa, Hiroaki Fukumaru, Hisao Ogawa | 2004-08-24 |
| 6728811 | Input/output device for connection and disconnection of active lines | Tsutomu Yamada, Yasuo Kaminaga, Kouji Masui, Akihiro Ohashi | 2004-04-27 |