P

Inventor

FUTSUHARA KOICHI

JP56 patents
⚠️ This page may combine multiple inventors who share the name “FUTSUHARA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON SIGNAL CO LTD

41 patents
US6148055ANov 14, 2000

Counter and a revolution stop detection apparatus using the counter

NIPPON SIGNAL CO LTD16 citations93
US5442303AAug 15, 1995

Electromagnetically coupled fail-safe logic circuit

NIPPON SIGNAL CO LTD34 citations93
US5345138ASep 6, 1994

Method and apparatus for assuring safe work

NIPPON SIGNAL CO LTD84 citations93
US4757417AJul 12, 1988

Monitoring system for load-driving switch circuits

NIPPON SIGNAL CO LTD38 citations93
US4661880AApr 28, 1987

Failsafe monitoring system with input controlled switch circuits

NIPPON SIGNAL CO LTD44 citations93
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
US6504485B2Jan 7, 2003

Monitoring apparatus and control apparatus for traffic signal lights

NIPPON SIGNAL CO LTD17 citations81
US6292524B1Sep 18, 2001

Counting apparatus and rotation stopped detection apparatus which uses a counting apparatus

NIPPON SIGNAL CO LTD7 citations74
US6272001B1Aug 7, 2001

Emergency stop switch and emergency stop switch circuit

NIPPON SIGNAL CO LTD8 citations74
US6034449AMar 7, 2000

Load drive circuit

NIPPON SIGNAL CO LTD14 citations74
US6002249ADec 14, 1999

Rotation detection sensor

NIPPON SIGNAL CO LTD13 citations74
US5903517AMay 11, 1999

Moving body control apparatus

NIPPON SIGNAL CO LTD8 citations74
US5861813AJan 19, 1999

Safety securing device

NIPPON SIGNAL CO LTD11 citations74
US5818681AOct 6, 1998

Electromagnetic relay drive circuit

NIPPON SIGNAL CO LTD7 citations74
US5768077AJun 16, 1998

Earthing wire disconnection detection apparatus and leakage detection apparatus having an earthing wire disconnection detection function conductor

NIPPON SIGNAL CO LTD15 citations74
US5703452ADec 30, 1997

Safety ensuring apparatus

NIPPON SIGNAL CO LTD8 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
US5495228AFeb 27, 1996

Fail-safe scan circuit and a multibeam sensor

NIPPON SIGNAL CO LTD17 citations74
US5432337AJul 11, 1995

Fail-safe scanning circuit and multi-axis light beam-type sensor

NIPPON SIGNAL CO LTD9 citations74
US5105124AApr 14, 1992

Lamp failure detecting device

NIPPON SIGNAL CO LTD7 citations74
US4667184AMay 19, 1987

Apparatus for counting enumeration input pulses

NIPPON SIGNAL CO LTD12 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
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
US5905354AMay 18, 1999

Motor stopped verification sensor

NIPPON SIGNAL CO LTD9 citations68
US5578987ANov 26, 1996

Monitoring apparatus for an alarm device

NIPPON SIGNAL CO LTD7 citations68
US6657762B2Dec 2, 2003

Optical barrier device

NIPPON SIGNAL CO LTD4 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

NIHON SHINGO KABUSHIKI KAISHA

4 patents

KAO CORP

2 patents

KAWASHIMA KIROSHI

1 patent

NAGANO KEIKI SEISAKUSHO KK

1 patent

SUGIMOTO NOBORU

1 patent

Showing the top 50 of 56 patents by PatentIndex Score.