Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775706 | Multi-protocol switching system, line interface and multi-protocol processing device | Keisuke Fukumoto | 2004-08-10 |
| 6744426 | Pen coordinate reading device with pen attribute detecting function | Takashi Kawaguchi, Tsuyoshi Ohashi | 2004-06-01 |