Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6734677 | Device and method for detecting engine combustion condition | Makoto Toriyama, Tohru Yoshinaga | 2004-05-11 |
| 6725834 | Ignition system with ion current detecting circuit | Masatoshi Ikeda, Makoto Toriyama | 2004-04-27 |