Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350225 | Elevator control system | Kazuhiro Sakata, Takeo Yuminaka, Kenji Yoneda, Soshiro Kuzunuki, Yasunori Katayama | 1982-09-21 |
| 4330838 | Elevator test operation apparatus | Kenji Yoneda, Takeo Yuminaka, Kazuhiro Sakata, Soshiro Kuzunuki | 1982-05-18 |