Inventor
MATSUYAMA TOSHIYASU
JP8 patents
⚠️ This page may combine multiple inventors who share the name “MATSUYAMA TOSHIYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OPTEX CO LTD
4 patentsUS6970085B2Nov 29, 2005
Door sensor and door equipped with such door sensor
OPTEX CO LTD85 citations91
US7530198B2May 12, 2009
Swing door opening/closing detection system
OPTEX CO LTD2 citations61
US7030364B2Apr 18, 2006
Optical detection sensor
OPTEX CO LTD2 citations59
US7009168B2Mar 7, 2006
Sensor
OPTEX CO LTD6 citations59