Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6539649 | Power transmission system for snow-removing machine | Takahiro Yamamoto, Hiroshi Kobayashi, Seishu Sakai, Tomoaki Ishikawa | 2003-04-01 |
| 6523283 | Overload protecting device for snow removing machine | Kenji Kuroiwa, Tomoaki Ishikawa | 2003-02-25 |