Inventor
WASHIZU KEISUKE
JP11 patents
⚠️ This page may combine multiple inventors who share the name “WASHIZU KEISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOCHIKI CO
10 patentsUS11761890B2Sep 19, 2023
Fire detection device
HOCHIKI CO2 citations70
US11454582B2Sep 27, 2022
Sensor
HOCHIKI CO2 citations70
USD1034264SJul 9, 2024
Smoke detector cover for fire alarm
HOCHIKI CO3 citations69
USD908519SJan 26, 2021
Smoke detector
HOCHIKI CO2 citations68
US12379313B2Aug 5, 2025
Fire detection device
HOCHIKI CO0 citations60
US12260725B2Mar 25, 2025
Fire detection apparatus
HOCHIKI CO1 citations59
USD1034263SJul 9, 2024
Smoke detector for fire alarm
HOCHIKI CO1 citations57
US12494113B2Dec 9, 2025
Disaster prevention apparatus to detect fire outbreak or gas leakage
HOCHIKI CO0 citations50
US12430997B2Sep 30, 2025
Disaster prevention apparatus
HOCHIKI CO0 citations50
US11698340B2Jul 11, 2023
Fire detection apparatus
HOCHIKI CO0 citations49