Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11383754 | Steering system | Susumu Imagaki, Masayoshi Sakuda, Kota Higuchi, Kazuki Fujiwara, Takuya Adachi | 2022-07-12 |
| 11325636 | Steering column device | Susumu Imagaki, Masayoshi Sakuda, Takahiro BAITO, Takuya Adachi, Kota Higuchi +2 more | 2022-05-10 |
| 9056749 | Control device of elevator door including obstruction detection using equivalent stiffness determination | — | 2015-06-16 |
| 8973714 | Door engagement device for elevator | Hiroshi Kigawa, Masaya Kitazawa, Naotoshi Ito | 2015-03-10 |
| 8141685 | Elevator apparatus having vibration damping control | — | 2012-03-27 |
| 8011478 | Elevator vibration damping system having damping control | — | 2011-09-06 |
| 7992688 | Door device for an elevator | Masayuki Sugahara, Naotoshi Ito | 2011-08-09 |
| 7909141 | Elevator vibration damping system having damping control | — | 2011-03-22 |
| 7828122 | Vibration damping device for an elevator | — | 2010-11-09 |
| 7007774 | Active horizontal vibration reducing device for elevator | Kenichi Okamoto, Takashi Yumura | 2006-03-07 |
| 6786304 | Guide for elevator | Kenichi Okamoto, Takashi Yumura | 2004-09-07 |
| 6763917 | Elevator vibration reduction apparatus including a dead band filter | Kenichi Okamoto, Takashi Yumura | 2004-07-20 |
| 6474449 | Elevator and guide device for elevator | Kenichi Okamoto, Takashi Yumura | 2002-11-05 |