Inventor
SENBONGI TSUNENORI
JP4 patents
Patents
4 patentsUS7928678B2Apr 19, 2011
Door opening/closing control device
MITSUI MINING & SMELTING CO11 citations82
US7698855B2Apr 20, 2010
Sliding-door opening control apparatus
MITSUI MINING & SMELTING CO17 citations82
US7690156B2Apr 6, 2010
Door opening/closing control device
MITSUI MINING & SMELTING CO14 citations82
US7218069B2May 15, 2007
Door opening/closing device
MITSUI MINING & SMELTING CO8 citations71