Inventor
SAKAI MASAYOSHI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “SAKAI MASAYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON SIGNAL CO LTD
27 patentsUS6148055ANov 14, 2000
Counter and a revolution stop detection apparatus using the counter
NIPPON SIGNAL CO LTD16 citations93
US7443342B2Oct 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
US6292524B1Sep 18, 2001
Counting apparatus and rotation stopped detection apparatus which uses a counting apparatus
NIPPON SIGNAL CO LTD7 citations74
US6034449AMar 7, 2000
Load drive circuit
NIPPON SIGNAL CO LTD14 citations74
US5903517AMay 11, 1999
Moving body control apparatus
NIPPON SIGNAL CO LTD8 citations74
US5818681AOct 6, 1998
Electromagnetic relay drive circuit
NIPPON SIGNAL CO LTD7 citations74
US5668706ASep 16, 1997
Load driving circuit
NIPPON SIGNAL CO LTD11 citations74
US5638043AJun 10, 1997
Warning apparatus
NIPPON SIGNAL CO LTD8 citations74
US5574320ANov 12, 1996
Load drive circuit
NIPPON SIGNAL CO LTD16 citations74
US5568131AOct 22, 1996
Motor rotation judgement circuit and apparatus using such circuit for verifying that a motor is stopped
NIPPON SIGNAL CO LTD14 citations74
US5519598AMay 21, 1996
Load driving circuit
NIPPON SIGNAL CO LTD10 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
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
US5508697AApr 16, 1996
Airplane detection system
NIPPON SIGNAL CO LTD17 citations70
US5285721AFeb 15, 1994
Slide operation control device for a press
NIPPON SIGNAL CO LTD9 citations69
US5578987ANov 26, 1996
Monitoring apparatus for an alarm device
NIPPON SIGNAL CO LTD7 citations68
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
US5568059AOct 22, 1996
Current sensor and motor rotation sensor using such current sensor
NIPPON SIGNAL CO LTD6 citations63
US6334077B1Dec 25, 2001
Operation apparatus for press
NIPPON SIGNAL CO LTD6 citations61
US5666081ASep 9, 1997
On-delay circuit
NIPPON SIGNAL CO LTD1 citations52