Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411338 | Apparatus for calculating elevator cage call forecast | Soshiro Kuzunuki, Kotaro Hirasawa, Takeo Yuminaka | 1983-10-25 |
| 4378059 | Abnormal elevator speed detector | Takanobu Hatakeyama, Yasunori Katayama, Sadao Hokari, Tomiaki Kurihara, Toshio Meguro | 1983-03-29 |
| 4341287 | Elevator control apparatus | Soshiro Kuzunuki, Kotaro Hirasawa, Masumi Imai, Takeo Yuminaka, Kazuhiro Sakata | 1982-07-27 |
| 4266632 | Elevator system | Takeo Yuminaka, Masao Nakazato | 1981-05-12 |