Inventor
IWASAWA MASASHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “IWASAWA MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OPTEX CO LTD
20 patentsUS5461231AOct 24, 1995
Passive type moving object detection system
OPTEX CO LTD73 citations94
US6919567B2Jul 19, 2005
Active infrared sensor
OPTEX CO LTD24 citations92
US5055685AOct 8, 1991
Infrared detecting apparatus
OPTEX CO LTD30 citations92
US7760336B2Jul 20, 2010
Laser area sensor
OPTEX CO LTD13 citations83
US6998982B2Feb 14, 2006
Anti-thief security sensor assembly with variable amount of emitted infrared beam
OPTEX CO LTD12 citations83
US9733358B2Aug 15, 2017
Laser scanning sensor
OPTEX CO LTD3 citations73
US6714131B2Mar 30, 2004
Anti-thief security sensor assembly using the opening of the projector cover for beam adjustment
OPTEX CO LTD7 citations69
US7940178B2May 10, 2011
Laser area sensor
OPTEX CO LTD6 citations62
US7271722B2Sep 18, 2007
Security sensor device having optical axis adjustment capability
OPTEX CO LTD4 citations62
US7164119B2Jan 16, 2007
Security sensor system
OPTEX CO LTD6 citations62
US6965109B2Nov 15, 2005
Multistage active infrared sensor
OPTEX CO LTD6 citations62
US6819240B2Nov 16, 2004
Anti-theft security sensor assembly
OPTEX CO LTD5 citations62
US6201514B1Mar 13, 2001
Stereoscopic antenna
OPTEX CO LTD6 citations58
US10139477B2Nov 27, 2018
Erroneous detection restraining circuit for laser range finder
OPTEX CO LTD1 citations51
US7193513B2Mar 20, 2007
Alarm system
OPTEX CO LTD0 citations51
US7030754B2Apr 18, 2006
Alarm system
OPTEX CO LTD0 citations51
US11531092B2Dec 20, 2022
Laser scanning sensor
OPTEX CO LTD0 citations50
US11899109B2Feb 13, 2024
Laser scanning sensor
OPTEX CO LTD0 citations41
US9182489B2Nov 10, 2015
Laser scan sensor
OPTEX CO LTD0 citations41
US7476860B2Jan 13, 2009
Outdoor active infrared detection apparatus with adjustable drive frequency
OPTEX CO LTD0 citations41
IWASAWA MASASHI
3 patentsUS8681323B2Mar 25, 2014
Laser scanning sensor
IWASAWA MASASHI3 citations60
US8420998B2Apr 16, 2013
Target detecting and determining method for detecting and determining target based on height information and storage medium for storing program executing target detecting and determining method
IWASAWA MASASHI2 citations60
US9140793B2Sep 22, 2015
Laser scan sensor
IWASAWA MASASHI0 citations39