Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7013079 | Hybrid hot air heater | Keiichi Ito, Yoshinori Fujisawa, Yukihiko Shimonoma | 2006-03-14 |
| 6959144 | Air heater with expansion containing electric heater arranged in stages | Yukihiko Shimonoma, Keiichi Ito, Yoshinori Fujisawa | 2005-10-25 |
| 6907192 | Hybrid hotair heater | Keiichi Ito, Toshiyuki Nomura, Yoshinori Fujisawa, Yukihiko Shimonoma | 2005-06-14 |
| 6882796 | Hybrid hot air heater | Keiichi Ito, Yoshinori Fujisawa, Yukihiko Shimonoma | 2005-04-19 |
| 6795643 | Hybrid hotair heater | Keiichi Ito, Yoshinori Fujisawa, Yukihiko Shimonoma | 2004-09-21 |