Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780913 | Zinc borate, and production method and use thereof | Hiroshi Igarashi, Akira Tatebe, Kazunori Sakao | 2004-08-24 |
| 6770544 | Substrate cutting method | — | 2004-08-03 |
| 6673619 | Catalyst deterioration detecting device and catalyst deterioration detecting method | — | 2004-01-06 |