Inventor
TAWADA MASANORI
JP10 patents
Patents
10 patentsUS5864104AJan 26, 1999
Elevator door control apparatus
MITSUBISHI ELECTRIC CORP28 citations91
US5250765AOct 5, 1993
Apparatus for controlling elevator door
MITSUBISHI ELECTRIC CORP45 citations91
US5131506AJul 21, 1992
Door control system using drive motor torque signals
MITSUBISHI ELECTRIC CORP41 citations91
US5329075AJul 12, 1994
Elevator door control apparatus
MITSUBISHI ELECTRIC CORP17 citations72
US5290975AMar 1, 1994
Door control and data display system
MITSUBISHI ELECTRIC CORP15 citations72
US5196656AMar 23, 1993
Elevator door control apparatus
MITSUBISHI ELECTRIC CORP19 citations72
US5175400ADec 29, 1992
Apparatus for controlling elevator door based on power source voltage
MITSUBISHI ELECTRIC CORP10 citations72
US5139113AAug 18, 1992
Apparatus for detecting abnormalities in elevator motion
MITSUBISHI ELECTRIC CORP9 citations72
US5170865ADec 15, 1992
Apparatus for controlling an elevator door using a drive motor slip frequency signal
MITSUBISHI ELECTRIC CORP4 citations61
US5144101ASep 1, 1992
Control apparatus for elevator doors using velocity limiting circuits
MITSUBISHI ELECTRIC CORP3 citations61