Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656621 | Fuel cell stack | Yoshinori Wariishi | 2003-12-02 |
| 6570304 | Spark plug cap and spark plug fitting method | Masayoshi Matsui, Takahiro Suzuki | 2003-05-27 |
| 6559577 | Pressure sensor-incorporating spark plug | Masayoshi Matsui, Takahiro Suzuki | 2003-05-06 |