Inventor
SHIRAI TOSHIHITO
JP20 patents
Patents
20 patentsUS7443342B2Oct 28, 2008
Reception time determining apparatus and distance measuring apparatus using the same
NIPPON SIGNAL CO LTD59 citations92
US6434025B2Aug 13, 2002
Power supply unit
NIPPON SIGNAL CO LTD37 citations92
US6047634AApr 11, 2000
Fail-safe automatic sliding operation control apparatus for press
NIPPON SIGNAL CO LTD28 citations92
US5798703AAug 25, 1998
Mat sensor
NIPPON SIGNAL CO LTD32 citations92
US7197932B2Apr 3, 2007
Failure detecting system
NIPPON SIGNAL CO LTD24 citations91
US5574320ANov 12, 1996
Load drive circuit
NIPPON SIGNAL CO LTD16 citations74
US5734269AMar 31, 1998
Bridge circuit fault monitoring apparatus using an output signal level from a bridge circuit and a power source current level to determine faults
NIPPON SIGNAL CO LTD9 citations73
US5717302AFeb 10, 1998
Motor stopped verification apparatus
NIPPON SIGNAL CO LTD12 citations73
US5867775AFeb 2, 1999
Fail-safe signal transmitting apparatus producing a logical product of an input signal and a carrier signal
NIPPON SIGNAL CO LTD8 citations72
US5793197AAug 11, 1998
Apparatus for confirming stop of movable portion
NIPPON SIGNAL CO LTD10 citations72
US6459656B1Oct 1, 2002
Information generating apparatus using elastic waves
NIPPON SIGNAL CO LTD5 citations71
US6292432B1Sep 18, 2001
Information generating apparatus using elastic waves
NIPPON SIGNAL CO LTD11 citations71
US6031790AFeb 29, 2000
Information generator using elastic wave
NIPPON SIGNAL CO LTD12 citations71
US5905354AMay 18, 1999
Motor stopped verification sensor
NIPPON SIGNAL CO LTD9 citations68
US6657762B2Dec 2, 2003
Optical barrier device
NIPPON SIGNAL CO LTD4 citations63
US6392451B1May 21, 2002
Threshold value operation circuit, and, and gate circuit, self hold circuit, start signal generation circuit using threshold value operation circuit
NIPPON SIGNAL CO LTD3 citations63
US6239956B1May 29, 2001
Fail-safe timing circuit and on-delay circuit using the same
NIPPON SIGNAL CO LTD5 citations63
US5773972AJun 30, 1998
Transition detection circuit for detecting transitions in the state of an object of detection
NIPPON SIGNAL CO LTD3 citations63
US9319163B2Apr 19, 2016
Wireless communication network system synchronization method
NIPPON SIGNAL CO LTD2 citations57
US9628998B2Apr 18, 2017
Wireless communication network system
NIPPON SIGNAL CO LTD0 citations37