Inventor
OKA SHOICHI
JP4 patents
Patents
4 patentsUS6597288B2Jul 22, 2003
Fire alarm system
MATSUSHITA ELECTRIC WORKS LTD21 citations92
US6737977B2May 18, 2004
Fire detector unit
MATSUSHITA ELECTRIC WORKS LTD25 citations89
US6611611B2Aug 26, 2003
Particle sensor
MATSUSHITA ELECTRIC WORKS LTD9 citations73
US6552664B2Apr 22, 2003
Method of fabricating a fire detector
MATSUSHITA ELECTRIC WORKS LTD9 citations72