Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808570 | Fin and tube for high-temperature heat exchanger | — | 2004-10-26 |
| 6794803 | Spark plug for an internal combustion engine | Tsunenobu Hori, Yasutake Ishino, Hironori Osamura, Mineo Okuma | 2004-09-21 |
| 6732992 | Mold for producing silicon ingot and method for fabricating the same | Saburo Wakita, Jun Sasaki | 2004-05-11 |