Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5780786 | Control apparatus for use in an elevator | — | 1998-07-14 |
| 5427207 | Apparatus for rescuing passengers in a malfunctioning elevator | — | 1995-06-27 |
| 4779708 | Control device for an elevator | Isao Sasao, Takanobu Masaki | 1988-10-25 |
| 4624343 | Speed control apparatus for elevator | Tooru Tanahashi | 1986-11-25 |
| 4244450 | Group supervisory system of elevator cars | Yasukazu Umeda, Toshiyuki Kamohara, Seiichi Goto, Shintaro Tsuji | 1981-01-13 |