公开(公告)号：US12092343B2

公开(公告)日：2024-09-17

申请号：US18265688

申请日：2021-01-22

申请人： Mitsubishi Electric Corporation

发明人： Akira Morikawa ,  Masaki Toyoshima ,  Noriaki Katsumata

IPC分类号： F24D17/00

CPC分类号： F24D17/0073

摘要： A storage water heater is provided that allows for improved maintenance of hygiene in a lower part of a hot-water storage tank and in a passage connected to the lower part of the hot-water storage tank. A storage water heater includes a heating device, a hot-water storage tank, a first passage, and a controller. The hot-water storage tank stores hot water. The first passage is connected to a lower part of the hot-water storage tank. The controller is configured to selectively switch between a heat-up operation and a recirculation operation. In the heat-up operation, hot water heated by the heating device is delivered to an upper part of the hot-water storage tank. In the recirculation operation, hot water flowing out from the upper part of the hot-water storage tank is delivered to the lower part of the hot-water storage tank via the first passage.

公开(公告)号：US11278877B2

公开(公告)日：2022-03-22

申请号：US16629186

申请日：2018-05-28

申请人： Mitsubishi Electric Corporation

发明人： Noriaki Katsumata ,  Yoko Matsuura ,  Noboru Wada ,  Ryu Abe ,  Osamu Tomita ,  Masaya Shigemitsu

IPC分类号： B01J35/00 ,  B01J21/06 ,  B01J23/30 ,  B01J35/02 ,  B01J37/04 ,  B01J37/08

摘要： In a photocatalyst and a photocatalyst carrier, tungsten oxide microcrystals that have a crystal grain size of 10 nm or less and oxidizes a gaseous chemical substance and titanium oxide microcrystals that have a crystal grain size of 10 nm or less and oxidizes the gaseous chemical substance are irregularly arranged to form a solid.

公开(公告)号：US12031742B2

公开(公告)日：2024-07-09

申请号：US18287295

申请日：2021-04-28

申请人： Mitsubishi Electric Corporation

发明人： Takafumi Nakai ,  Akira Morikawa ,  Noriaki Katsumata ,  Masaru Takada

IPC分类号： F24F11/89 ,  F24F140/30

CPC分类号： F24F11/89 ,  F24F2140/30

摘要： A contaminant detector includes a detection object that is inclined relative to a horizontal direction in a drainage unit for accumulation of discharged water and on which a contaminant is to be deposited and a detection unit configured to emit energy toward the detection object to detect a contamination state of the detection object. The detection unit includes a transmission and reception module configured to emit and receive energy, a calculation module configured to calculate an amount of energy received from the detection object by the transmission and reception module, and a determination module configured to determine, based on the amount of energy calculated by the calculation module, the contamination state of the detection object.

公开(公告)号：US11796509B2

公开(公告)日：2023-10-24

申请号：US17913161

申请日：2020-05-07

申请人： Mitsubishi Electric Corporation

发明人： Jini Hon ,  Akira Morikawa ,  Noriaki Katsumata

IPC分类号： G01N29/02 ,  G01N29/024 ,  F24F110/20

CPC分类号： G01N29/024 ,  F24F2110/20 ,  G01N2291/02845

摘要： A humidity sensor includes a sound wave element configured to transmit a sound wave and receive the sound wave reflected by a reflector, a reception circuit configured to obtain an arrival time of the reflected wave received by the sound wave element, and a humidity analysis circuit configured to calculate humidity by using the arrival time, a distance from the sound wave element to the reflector, and a temperature of a space from the sound wave element to the reflector.