| NORITZ CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110259317 | Hot water supply apparatus - According to the hot water supply apparatus of the present invention, it becomes possible to effectively prevent the dew condensation on a bypass line. While exhaust gas after passage through a heat exchanger | 10-27-2011 |
| 20110183277 | Driving method for solenoid valve, solenoid valve driving apparatus, and combustion apparatus including same - A solenoid valve driving apparatus includes switching means for ON/OFF-controlling application of a direct current voltage to a solenoid of a solenoid valve, and signal outputting means. A first period and a consecutive second period are set as a valve opening operation period of the solenoid valve. When the signal outputting means outputs the PWM signal to the switching means, a duty ratio of the output signal is set to be higher in the second period than in the first period so that a power supplied to the solenoid is larger in the second period than in the first period. As a result, a valve opening operation is performed in the solenoid valve reliably, and loud noise generation during the valve opening operation is suppressed. | 07-28-2011 |
| 20110155079 | Heat exchanger and water heater incorporating the same - A heat exchanger A | 06-30-2011 |
| 20100330520 | Combustion apparatus - A combustion apparatus mainly consists of burners, a fuel supply channel having branched channels, an air feeder for supplying air to the burners, and a pressure regulator and has a combustion space. The branched channels allow fuel gas supplied to the burners to pass therethrough and are provided with shutoff valves. The pressure regulator includes a signal-pressure inlet and a secondary-pressure inlet. A signal pressure introduced through the signal-pressure inlet is detected at a downstream of the air feeder and a secondary pressure introduced through the secondary-pressure inlet is detected at a vicinity of a boundary of the branched channels in the fuel supply channel. Fuel gas discharged from the pressure regulator is regulated so as to satisfy a predetermined relationship between the signal pressure introduced through the signal-pressure inlet and the secondary pressure introduced through the secondary-pressure inlet. | 12-30-2010 |
| 20100200769 | DRINKING WATER SERVER - The invention presents a drinking water server having a configuration capable of suppressing generation of bacteria in a cold water tank, in a cold water pour tube, and in a pour valve. | 08-12-2010 |
| 20100126431 | COMBUSTION APPARATUS - A combustion apparatus | 05-27-2010 |
| 20090133642 | Latent heat recovery-type water heater - So as to provide a latent heat recovery-type water heater capable of certainly preventing drain generated by heat exchange from being discharged out of an exhaust portion through an outlet with entrained by a flow of combustion gas, an exhaust portion | 05-28-2009 |
| 20090064945 | HEAT EXCHANGER, WATER HEATER AND WATER TUBE - A water tube WT of a heat exchanger B includes a helical tube body | 03-12-2009 |
