Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826567 | Registration method and search method for structured documents | Katsumi Tada, Natsuko Sugaya, Tadataka Matsubayashi, Yasushi Kawashimo | 2004-11-30 |
| 6731632 | Internetworking system and method | Soichi Takahashi, Hirokazu Hatanaka, Hiroyuki Murakami | 2004-05-04 |
| 6672051 | Exhaust emission purifying device for internal combustion engine | Yasuki Tamura, Kazuhito Kawashima, Osamu Nakayama | 2004-01-06 |