Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815573 | Method of decomposing halogenated hydrocarbon gas | Tatsuro Ariyama, Toshihiko Okada, Minoru Asanuma, Michinori Hattori | 2004-11-09 |
| 6774294 | Key for musical instrument | Hidenori Kugimoto, Kenichi Ookubo | 2004-08-10 |