Inventor
SAWA HIROSHI
10 patents
⚠️ This page may combine multiple inventors who share the name “SAWA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOCHIKI CO
6 patentsUS4897634AJan 30, 1990
Scattered-light smoke detector with a shielding structure of detector circuits
HOCHIKI CO51 citations90
US4851819AJul 25, 1989
Photoelectric smoke detector with permanently fixed insect net
HOCHIKI CO42 citations90
US5302837AApr 12, 1994
Photoelectric smoke detector with expanded visual field
HOCHIKI CO19 citations72
US4286159AAug 25, 1981
Detector coupling mechanism
HOCHIKI CO11 citations68
US4292844AOct 6, 1981
Temperature detecting device
HOCHIKI CO3 citations62
US4295371AOct 20, 1981
Temperature detecting device
HOCHIKI CO5 citations60