Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807480 | Navigation system and a memory medium | Hironari Iwasaki, Kazuhiro Ikeda, Koji Kato, Yasuyuki Takeda | 2004-10-19 |
| 6775543 | Cellular phone, cellular phone failure judgment method and failure judgment apparatus | Hiroyuki Itazu, Atsushi Murase, Shuji Tachibana | 2004-08-10 |