Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924416 | Apparatus for detecting relative crowding in a hall | — | 1990-05-08 |
| 4779708 | Control device for an elevator | Yoshio Miyanishi, Takanobu Masaki | 1988-10-25 |
| 4704597 | Elevator travel detecting apparatus | — | 1987-11-03 |
| 4671391 | Moving distance detector for an elevator | — | 1987-06-09 |
| 4614931 | Call signal conversion apparatus for elevator system | — | 1986-09-30 |
| 4520905 | Elevator group control apparatus | — | 1985-06-04 |
| 4509013 | Speed detecting device | — | 1985-04-02 |
| 4376930 | Call signal conversion apparatus for elevator system | — | 1983-03-15 |