Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823947 | Walk-behind cultivator | Masatoshi Nagaoka, Yoshitaka Ohta, Fumiyoshi Kanbara | 2004-11-30 |
| 6722445 | Working machine having front-rotary working unit | Yoshitaka Ohta, Masatoshi Nagaoka | 2004-04-20 |
| 6718754 | Oxygen storage control of engine exhaust gas purification catalyst | Shigeaki Kakizaki | 2004-04-13 |
| 6708774 | Cultivator | Kazuyoshi Miyahara | 2004-03-23 |