Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329075 | Elevator door control apparatus | Masanori Tawada, Toshiyuki Kodera | 1994-07-12 |
| 5290975 | Door control and data display system | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1994-03-01 |
| 5250765 | Apparatus for controlling elevator door | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1993-10-05 |
| 5196656 | Elevator door control apparatus | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1993-03-23 |
| 5175400 | Apparatus for controlling elevator door based on power source voltage | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1992-12-29 |
| 5170865 | Apparatus for controlling an elevator door using a drive motor slip frequency signal | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1992-12-15 |
| 5144101 | Control apparatus for elevator doors using velocity limiting circuits | Masanori Tawada, Masamoto Mizuno, Toshiyuki Kodera | 1992-09-01 |
| 5139113 | Apparatus for detecting abnormalities in elevator motion | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1992-08-18 |
| 5131506 | Door control system using drive motor torque signals | Masamoto Mizuno, Masanori Tawada, Toshiyuki Kodera | 1992-07-21 |
| 5086450 | Emergency intercommunication system for elevator | Shigeo Kitagawa, Kenzo Tachino, Yasuhiro Nagata, Tomoichiro Yamamoto, Shigemi Iwata +1 more | 1992-02-04 |
| 4742891 | Elevator system | Kazushi Kunii | 1988-05-10 |