Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791245 | Glow plug and spark plug, and manufacturing method therefor | Wataru Matsutani, Chiaki Kumada, Katsunari Ninomiya | 2004-09-14 |
| 6768249 | Spark plug and producing method therefor | Wataru Matsutani | 2004-07-27 |
| 6766408 | Semiconductor integrated circuit and method for writing into non-volatile memory using a program received by external communication | — | 2004-07-20 |
| 6688932 | Method for manufacturing spark plug and caulking metallic mold | Wataru Matsutani, Yoshito Uemura, Makoto Sugimoto, Hirohito Ito | 2004-02-10 |