Assignee
NOHMI BOSAI LTD
JP·87 granted patents·1,683 citations·filing 1989–2020
Top patents by PatentIndex Score
87 records- 0191US5168262AFire alarm systemNOHMI BOSAI LTD·Filed 1989·Granted Dec 1, 1992·119 cites·11 claims
- 0288US5574435APhotoelectric type fire detectorNOHMI BOSAI LTD·Filed 1995·Granted Nov 12, 1996·143 cites·5 claims
- 0388US5530433ASmoke detector including ambient temperature compensationNOHMI BOSAI LTD·Filed 1994·Granted Jun 25, 1996·118 cites·5 claims
- 0488US5281951AFire alarm system and method employing multi-layer net processing structure of detection value weight coefficientsNOHMI BOSAI LTD·Filed 1989·Granted Jan 25, 1994·98 cites·11 claims
- 0581USD339756SSmoke detectorNOHMI BOSAI LTD·Filed 1991·Granted Sep 28, 1993·24 cites·1 claims
- 0681US4996518AFire alarm systemNOHMI BOSAI LTD·Filed 1990·Granted Feb 26, 1991·97 cites·21 claims
- 0780US5267180AFire alarm system having prestored fire likelihood ratio functions for respective fire related phenomenaNOHMI BOSAI LTD·Filed 1990·Granted Nov 30, 1993·80 cites·18 claims
- 0878US5151683APower supply control device in fire alarm systemNOHMI BOSAI LTD·Filed 1990·Granted Sep 29, 1992·67 cites·4 claims
- 0977US7834773B2Smoke detectorNOHMI BOSAI LTD·Filed 2008·Granted Nov 16, 2010·11 cites·8 claims
- 1077USD339998SSmoke detectorNOHMI BOSAI LTD·Filed 1991·Granted Oct 5, 1993·20 cites·1 claims
- 1176US11915569B2Smoke detectorNOHMI BOSAI LTD·Filed 2020·Granted Feb 27, 2024·1 cites·5 claims
- 1275US9824563B2Fire monitoring system and smoke detectorNOHMI BOSAI LTD·Filed 2017·Granted Nov 21, 2017·6 cites·9 claims
- 1375USD611863SFire detectorNOHMI BOSAI LTD·Filed 2009·Granted Mar 16, 2010·19 cites·1 claims
- 1474US6583404B1Photoelectric smoke detecting apparatusNOHMI BOSAI LTD·Filed 2000·Granted Jun 24, 2003·33 cites·21 claims
- 1572US7975773B2High expansion foam fire-extinguishing systemNOHMI BOSAI LTD·Filed 2007·Granted Jul 12, 2011·6 cites·4 claims
- 1671US5021677ALight-scattering-type smoke detectorNOHMI BOSAI LTD·Filed 1990·Granted Jun 4, 1991·50 cites·6 claims
- 1769US5486816AFire detector having optic base clamping optic elements to a circuit boardNOHMI BOSAI LTD·Filed 1993·Granted Jan 23, 1996·46 cites·23 claims
- 1868US7498949B2Fire sensor and fire sensor status information acquisition systemNOHMI BOSAI LTD·Filed 2007·Granted Mar 3, 2009·6 cites·2 claims
- 1968US5225810AFire detector for discriminating smoke and flame based on optically measured distanceNOHMI BOSAI LTD·Filed 1991·Granted Jul 6, 1993·40 cites·4 claims
- 2066US7280039B2Fire sensor and fire sensor status information acquisition systemNOHMI BOSAI LTD·Filed 2005·Granted Oct 9, 2007·5 cites·6 claims
- 2166US5610592AFire detecting apparatusNOHMI BOSAI LTD·Filed 1994·Granted Mar 11, 1997·34 cites·5 claims
- 2265US5478256AFire detector having bayonet coupling and locking mechanism for base and detector unitNOHMI BOSAI LTD·Filed 1994·Granted Dec 26, 1995·25 cites·4 claims
- 2362USD435800SFire detectorNOHMI BOSAI LTD·Filed 1999·Granted Jan 2, 2001·14 cites·1 claims
- 2462US5694208ASensor for detecting fine particles such as smoke or dust contained in the airNOHMI BOSAI LTD·Filed 1996·Granted Dec 2, 1997·29 cites·16 claims
- 2559USD630537SDisplay for a fire alarmNOHMI BOSAI LTD·Filed 2010·Granted Jan 11, 2011·12 cites·1 claims
- 2659US7808393B2Smoke detector and sampling air supplying method for smoke detectorNOHMI BOSAI LTD·Filed 2008·Granted Oct 5, 2010·1 cites·4 claims
- 2759US5428341AFire receiverNOHMI BOSAI LTD·Filed 1994·Granted Jun 27, 1995·26 cites·20 claims
- 2856US7297970B2Flame detectorNOHMI BOSAI LTD·Filed 2006·Granted Nov 20, 2007·3 cites·12 claims
- 2955USD630115SDisplay for a fire alarmNOHMI BOSAI LTD·Filed 2010·Granted Jan 4, 2011·10 cites·1 claims
- 3055US5926280AFire detection system utilizing relationship of correspondence with regard to image overlapNOHMI BOSAI LTD·Filed 1997·Granted Jul 20, 1999·32 cites·21 claims
- 3155US5403198ADetector baseNOHMI BOSAI LTD·Filed 1993·Granted Apr 4, 1995·17 cites·7 claims
- 3254US5598147ASmoke detecting apparatus for fire alarmNOHMI BOSAI LTD·Filed 1995·Granted Jan 28, 1997·24 cites·17 claims
- 3354US5473314AHigh sensitivity smoke detecting apparatus using a plurality of sample gases for calibrationNOHMI BOSAI LTD·Filed 1993·Granted Dec 5, 1995·22 cites·11 claims
- 3453US5754103ATransmission line-monitoring apparatus for use in a fire alarm systemNOHMI BOSAI LTD·Filed 1995·Granted May 19, 1998·33 cites·24 claims
- 3552US6033080AEmergency light operable on the lever principleNOHMI BOSAI LTD·Filed 1998·Granted Mar 7, 2000·17 cites·7 claims
- 3652US5623212AOdor concentration measurement method and apparatus for use in fire detectionNOHMI BOSAI LTD·Filed 1995·Granted Apr 22, 1997·21 cites·14 claims
- 3751US11971345B2Smoke detectorNOHMI BOSAI LTD·Filed 2020·Granted Apr 30, 2024·0 cites·3 claims
- 3851US5673027ASmoke detector, adjustment apparatus and test apparatus for such a smoke detectorNOHMI BOSAI LTD·Filed 1994·Granted Sep 30, 1997·19 cites·28 claims
- 3950US9123218B2Fire control panel with a display unit for displaying system informationNOHMI BOSAI LTD·Filed 2013·Granted Sep 1, 2015·1 cites·3 claims
- 4049US9165448B2Smoke detectorNOHMI BOSAI LTD·Filed 2013·Granted Oct 20, 2015·0 cites·16 claims
- 4148USD410863SEmergency lightNOHMI BOSAI LTD·Filed 1998·Granted Jun 15, 1999·7 cites·1 claims
- 4246USD630538SFire alarm panelNOHMI BOSAI LTD·Filed 2010·Granted Jan 11, 2011·11 cites·1 claims
- 4346US6958700B2Fire receiverNOHMI BOSAI LTD·Filed 2002·Granted Oct 25, 2005·2 cites·16 claims
- 4446US6545602B2Fire alarm systemNOHMI BOSAI LTD·Filed 2001·Granted Apr 8, 2003·5 cites·9 claims
- 4546US5673020AEarly stage fire detecting apparatusNOHMI BOSAI LTD·Filed 1995·Granted Sep 30, 1997·16 cites·12 claims
- 4645USD439536SPlate for a fire alarm repeater boxNOHMI BOSAI LTD·Filed 1999·Granted Mar 27, 2001·8 cites·1 claims
- 4745US5872517AFire detectorNOHMI BOSAI LTD·Filed 1997·Granted Feb 16, 1999·12 cites·11 claims
- 4844US6756897B2Fire receiverNOHMI BOSAI LTD·Filed 2002·Granted Jun 29, 2004·2 cites·13 claims
- 4944US5670948AFire detectorNOHMI BOSAI LTD·Filed 1993·Granted Sep 23, 1997·11 cites·21 claims
- 5044US5448224AHeat detector including device for detecting abnormality of external temperature sensorNOHMI BOSAI LTD·Filed 1994·Granted Sep 5, 1995·13 cites·10 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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