Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350225 | Elevator control system | Kazuhiro Sakata, Takeo Yuminaka, Masao Nakazato, Kenji Yoneda, Yasunori Katayama | 1982-09-21 |
| 4341287 | Elevator control apparatus | Kotaro Hirasawa, Masumi Imai, Takeo Yuminaka, Kazuhiro Sakata, Kanji Yoneda | 1982-07-27 |
| 4330838 | Elevator test operation apparatus | Kenji Yoneda, Masao Nakazato, Takeo Yuminaka, Kazuhiro Sakata | 1982-05-18 |
| 4326606 | Apparatus for controlling rescue operation of an elevator | Kotaro Hirasawa, Kazuhiro Sakata, Kenji Yoneda | 1982-04-27 |