Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7287624 | Double deck elevator | Hiroaki Itoh, Masahir Hayakawa, Gen Yokoi | 2007-10-30 |
| 7077240 | Covers between an upper cage and a lower cage of a double deck elevator | Hiroaki Itoh, Masahiro Hayakawa, Gen Yokoi | 2006-07-18 |
| 6615952 | Double deck elevator | Hiroaki Itoh, Masahiro Hayakawa, Gen Yokoi | 2003-09-09 |
| 6336522 | Deck elevator car with speed control | Yoshiaki Fujita, Koichi Mishima | 2002-01-08 |
| 5811743 | Vibration control apparatus for elevator | Shigeo Nakagaki, Tadashi Shudo, Yukihiko Kazao | 1998-09-22 |
| 5460570 | Ventilator for elevator cage | Akihiko Okamura, Katsuyoshi Nagayasu | 1995-10-24 |
| 5402861 | Elevator passenger car and device for evaluating feel of ride in elevator | — | 1995-04-04 |