Issued Patents All Time
Showing 1–25 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8365636 | Automatic traction enhancement for a transaxle | Donald Wieber | 2013-02-05 |
| 8250862 | Vehicle | Masaru Iida, Fumitoshi Ishino | 2012-08-28 |
| 7987669 | Hydraulic steering transaxle and hydraulic driving vehicle | Norihiro Ishii, Shigenori Sakikawa | 2011-08-02 |
| 7971675 | Hydraulic transaxle and vehicle comprising it | Norihiro Ishii, Ryota Ohashi, Shigenori Sakikawa | 2011-07-05 |
| 7954907 | Supplemental brake system of zero turn vehicle | Donald Wieber, Masaru Iida | 2011-06-07 |
| 7856820 | Axle driving apparatus | Norihiro Ishii | 2010-12-28 |
| 7857079 | Multi-wheel vehicle | — | 2010-12-28 |
| 7841429 | Hydraulic transaxle | — | 2010-11-30 |
| 7690469 | Central differential for a working vehicle | Donald Wieber | 2010-04-06 |
| 7591338 | Hydraulic transaxle and vehicle comprising it | — | 2009-09-22 |
| 7510035 | Hydraulic transaxle | — | 2009-03-31 |
| 7493975 | Multi-wheel vehicle | — | 2009-02-24 |
| 7493998 | Automatic traction enhancement for transaxle | Donald Wieber | 2009-02-24 |
| 7490708 | Automatic traction enhancement for a transaxle | Donald Wieber | 2009-02-17 |
| 7484365 | Axle driving apparatus | Norihiro Ishii | 2009-02-03 |
| 7458431 | Multi-wheel vehicle | — | 2008-12-02 |
| 7455145 | Hydraulic steering transaxle and hydraulic driving vehicle | Norihiro Ishii, Shigenori Sakikawa | 2008-11-25 |
| 7455130 | Vehicle having twin transmissions for driving respective wheels | — | 2008-11-25 |
| 7431123 | Vehicle improved in steering | Norihiro Ishii, Ryota Ohashi, Kenichi Takada, Hirohiko Kawada, Robert Abend +3 more | 2008-10-07 |
| 7419025 | Hydraulic transaxle and vehicle comprising it | Norihiro Ishii, Ryota Ohashi, Shigenori Sakikawa | 2008-09-02 |
| 7331412 | Vehicle having twin transmissions for driving respective wheels | — | 2008-02-19 |
| 7234299 | Hydraulic transaxle | Ryota Ohashi, Hiroshi Tottori | 2007-06-26 |
| 7204779 | Hydraulic steering transaxle and hydraulic driving vehicle | Norihiro Ishii, Shigenori Sakikawa | 2007-04-17 |
| 7192376 | Axle driving apparatus | Norihiro Ishii | 2007-03-20 |
| 7179190 | Bull gear of a differential gear assembly | — | 2007-02-20 |