Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827620 | Method of manufacturing spark plug with noble metal chip for internal combustion engine | — | 2004-12-07 |
| 6806861 | Reference gamma compensation voltage generation circuit | Yoshitami Sakaguchi | 2004-10-19 |