Patents by Inventor Kazuhisa Iwasaki
Kazuhisa Iwasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11802695Abstract: An outdoor unit of an air-conditioning apparatus includes a housing, a heat exchanger, a bottom plate, a drainage structure, and a heater. The housing has an opening through a side of the housing. The heat exchanger is disposed in an upper portion of the interior of the housing. The bottom plate is disposed at the bottom of the housing, and has a drainage hole through which to drain out drain water generated at the heat exchanger. The drainage structure is disposed below the heat exchanger and that guides the drain water to the bottom plate. The drainage structure includes a side panel that covers the opening of the housing, and a water guide plate disposed inside the housing and facing the side panel. The water guide plate and the side panel define a drainage path for draining the drain water between the water guide plate and the side panel.Type: GrantFiled: January 18, 2019Date of Patent: October 31, 2023Assignee: Mitsubishi Electric CorporationInventors: Misaki Shimazaki, Kei Furukubo, Kazuhisa Iwasaki
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Publication number: 20220325928Abstract: An air-conditioning apparatus includes a compressor, an indoor heat exchanger, a first outdoor heat exchanger and a second outdoor heat exchanger, a valve between the second outdoor heat exchanger and the indoor heat exchanger switching between an opened state and a closed state, a temperature sensor detecting a temperature of refrigerant that flows into the second outdoor heat exchanger and liquefies, and a condensing-temperature detection device, wherein during first cooling operation in which the first outdoor heat exchanger functions as a condenser, the indoor heat exchanger functions as an evaporator, and the valve is in the closed state, when a comparative temperature becomes equal to or higher than a prescribed temperature, the air-conditioning apparatus switches to second cooling operation in which the valve is brought into the opened state, the comparative temperature being a value obtained by subtracting a temperature detected by the temperature sensor from the condensing temperature.Type: ApplicationFiled: December 13, 2019Publication date: October 13, 2022Inventors: Kazuhisa IWASAKI, Hiroyuki OKANO
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Publication number: 20220214055Abstract: An outdoor unit according to the present disclosure includes: a compressor that sucks refrigerant, compresses the sucked refrigerant, and discharges the compressed refrigerant; a first refrigerant flow switching device that switches a flow passage for the refrigerant between a flow passage for a cooling operation and a flow passage for a heating operation; a heat-source-side heat exchanger that causes heat exchange to be performed between the refrigerant and external fluid; a heat-source-side backflow prevention device and a connection pipe that are included in a flow passage for the refrigerant in which an outlet from which the refrigerant flows to an outside region and an inlet into which the refrigerant flows from the outside region are unchanged regardless of which of the cooling operation and the heating operation is performed; and a flow passage pipe through which part of the refrigerant having flowed from the inlet passes in the cooling operation.Type: ApplicationFiled: July 10, 2019Publication date: July 7, 2022Inventors: Kazuhisa IWASAKI, Takeshi HATOMURA, Yoji ONAKA
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Patent number: 10222081Abstract: A controller is configured to decide whether liquid refrigerant is unevenly distributed among a plurality of outdoor units and then adjust an outlet subcooling degree of an outdoor heat exchanger or an outlet sub cooling degree at a high-pressure outlet of a high-low pressure heat exchanger, and a discharge superheating degree of a compressor in a low capacity-side outdoor unit to match lower heat exchange capacity of the outdoor heat exchanger in the low capacity-side outdoor unit with higher heat exchange capacity of an outdoor heat exchanger in a high capacity-side outdoor unit, the low capacity-side outdoor unit being one of the plurality of outdoor units in which the outdoor heat exchanger has the lower heat exchange capacity, the high capacity-side outdoor unit being another of the plurality of outdoor units in which the outdoor heat exchanger has the higher heat exchange capacity.Type: GrantFiled: January 21, 2014Date of Patent: March 5, 2019Assignee: Mitsubishi Electric CorporationInventor: Kazuhisa Iwasaki
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Patent number: 10054349Abstract: An air-conditioning apparatus includes an outdoor unit with a compressor, an outdoor heat exchange, a four-way valve for switching a refrigerant flow passage, and an outdoor flow control valve which controls the flow rate of a liquid refrigerant; and an indoor unit that includes an indoor heat exchanger, and an indoor flow control valve which reduces refrigerant pressure. A refrigerant circuit is formed by connecting the outdoor unit and at least one indoor unit by a pipe. A controller controls a component of the refrigerant circuit, based on the relationship between a first target set temperature used for temperature control of air to be conditioned and a preset second target set temperature.Type: GrantFiled: July 20, 2012Date of Patent: August 21, 2018Assignee: Mitsubishi Electric CorporationInventors: Kazuhisa Iwasaki, Naomichi Tamura
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Patent number: 9759475Abstract: An outdoor unit includes a compressor compressing a sucked refrigerant and discharging compress, an outdoor heat exchanger exchanging heat between outdoor air and the refrigerant, an accumulator storing a liquefied refrigerant at a suction side of the compressor, a solenoid valve for storing the refrigerant in the outdoor heat exchanger, and a controller performing control so as to feed the refrigerant stored within the outdoor heat exchanger during a defrosting operation, to the accumulator on the basis of an amount of refrigerant within the accumulator when operation is switched to a heating operation from the defrosting operation.Type: GrantFiled: June 8, 2012Date of Patent: September 12, 2017Assignee: Mitsubishi Electric CorporationInventor: Kazuhisa Iwasaki
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Patent number: 9488396Abstract: An air-conditioning apparatus capable of storing a surplus of refrigerating machine oil and returning a necessary amount of the refrigerating machine oil to a compressor as required. In an air-conditioning apparatus, a controller determines the amount of refrigerating machine oil that is present in a compressor by measuring power of the compressor and controls opening and closing of a solenoid valve on the basis of the measurement results.Type: GrantFiled: June 13, 2012Date of Patent: November 8, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kentaro Kan, Naomichi Tamura, Kazuhisa Iwasaki
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Publication number: 20160245536Abstract: A controller is configured to decide whether liquid refrigerant is unevenly distributed among a plurality of outdoor units and then adjust an outlet subcooling degree of an outdoor heat exchanger or an outlet sub cooling degree at a high-pressure outlet of a high-low pressure heat exchanger, and a discharge superheating degree of a compressor in a low capacity-side outdoor unit to match lower heat exchange capacity of the outdoor heat exchanger in the low capacity-side outdoor unit with higher heat exchange capacity of an outdoor heat exchanger in a high capacity-side outdoor unit, the low capacity-side outdoor unit being one of the plurality of outdoor units in which the outdoor heat exchanger has the lower heat exchange capacity, the high capacity-side outdoor unit being another of the plurality of outdoor units in which the outdoor heat exchanger has the higher heat exchange capacity.Type: ApplicationFiled: January 21, 2014Publication date: August 25, 2016Inventor: Kazuhisa IWASAKI
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Publication number: 20150204592Abstract: An air-conditioning apparatus includes an outdoor unit with a compressor, an outdoor heat exchange, a four-way valve for switching a refrigerant flow passage, and an outdoor flow control valve which controls the flow rate of a liquid refrigerant; and an indoor unit that includes an indoor heat exchanger, and an indoor flow control valve which reduces refrigerant pressure. A refrigerant circuit is formed by connecting the outdoor unit and at least one indoor unit by a pipe. A controller controls a component of the refrigerant circuit, based on the relationship between a first target set temperature used for temperature control of air to be conditioned and a preset second target set temperature.Type: ApplicationFiled: July 20, 2012Publication date: July 23, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuhisa Iwasaki, Naomichi Tamura
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Publication number: 20140331712Abstract: An air-conditioning apparatus capable of storing a surplus of refrigerating machine oil and returning a necessary amount of the refrigerating machine oil to a compressor as required. In an air-conditioning apparatus, a controller determines the amount of refrigerating machine oil that is present in a compressor by measuring power of the compressor and controls opening and closing of a solenoid valve on the basis of the measurement results.Type: ApplicationFiled: June 13, 2012Publication date: November 13, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kentaro Kan, Naomichi Tamura, Kazuhisa Iwasaki
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Publication number: 20140311172Abstract: An outdoor unit includes a compressor compressing a sucked refrigerant and discharging compress, an outdoor heat exchanger exchanging heat between outdoor air and the refrigerant, an accumulator storing a liquefied refrigerant at a suction side of the compressor, a solenoid valve for storing the refrigerant in the outdoor heat exchanger, and a controller performing control so as to feed the refrigerant stored within the outdoor heat exchanger during a defrosting operation, to the accumulator on the basis of an amount of refrigerant within the accumulator when operation is switched to a heating operation from the defrosting operation.Type: ApplicationFiled: June 8, 2012Publication date: October 23, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Kazuhisa Iwasaki
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Publication number: 20020073121Abstract: The present invention provides a publication editing system, comprising: a template display means connected with a user terminal to display a template composed of a combined arrangement of a text area and a image area; a printing information forming means for forming printing information to allow the associated information with the input text and the combination of the image and the template to be output as the publication; and a printing/binding means for printing and binding based on the printing information to provide a finished book.Type: ApplicationFiled: July 17, 2001Publication date: June 13, 2002Inventors: Michio Sano, Toshimitsu Miyamoto, Kazuhisa Iwasaki
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Patent number: 5502432Abstract: A warning apparatus for warning of possible rear-end collision of a given vehicle having the warning apparatus with another vehicle preceding the given vehicle includes: a computer; a distance sensor for measuring a vehicle-to-vehicle distance to the another preceding vehicle; and a velocity sensor for measuring the velocity of the given vehicle. The computer computes a relative velocity of the given and the another preceding vehicle from a differential of the vehicle-to-vehicle distance and then computes an anticipated rear-end collision time by dividing of the vehicle-to-vehicle distance by the relative velocity of the given vehicle. The computer corrects the anticipated rear-end collision time in response to an acceleration and the relative velocity. The computer produces a warning of signal and an alarm is provided in response to the corrected anticipated rear-end collision time.Type: GrantFiled: December 10, 1992Date of Patent: March 26, 1996Assignee: Stanley Electric Co., Ltd.Inventors: Yukio Ohmamyuda, Shigeru Kimura, Toru Tanabe, Kazuhisa Iwasaki, Takao Seto, Hideki Kitamura, Yasushi Senoo
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Patent number: 5317375Abstract: An optical distance measuring apparatus operable in accordance with an optical intensity modulating process to optically measure a distance between a driver's vehicle and a vehicle running ahead of his vehicle includes a light emitting portion serving as a light source to emit a distance measuring light beam, an optical lens system, a light receiving portion for receiving a reflected light reflected from the vehicle running ahead of the driver's vehicle through the optical lens system, and a processing system for correcting phase delay between the distance measuring light beam and the reflected light beam utilizing reference light beams emitted from a plurality of reference light sources to determine the distance.Type: GrantFiled: February 25, 1992Date of Patent: May 31, 1994Assignee: Stanley Electric Co., Ltd.Inventors: Yukio Omamyuda, Shigeru Kimura, Toru Tanabe, Kazuhisa Iwasaki, Takao Seto, Hideki Kitamura, Kazuhiko Sugimura, Yasushi Senoo
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Patent number: 5260710Abstract: A vehicular optical radar apparatus comprising a light emitting portion for irradiating a signal light on an object ahead and a light receiving portion for receiving a reflected light from the object. At least one of a light emitting lens and a light receiving lens are deformation-worked so that a distance between optical centers of the light emitting and receiving portions can be moved closer together, and an angle formed between an incident axis of incoming light and so that an outgoing light becomes small.Type: GrantFiled: January 24, 1992Date of Patent: November 9, 1993Assignee: Stanley Electric Co., Ltd.Inventors: Yukio Omamyuda, Shigeru Kimura, Toru Tanabe, Kazuhisa Iwasaki, Takao Seto, Hideki Kitamura, Kazuhiko Sugimura, Yasushi Senoo
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Patent number: 5260682Abstract: A light-wave distance measuring apparatus has an intermittent controller for continuously changing periods of time during which a light intensity modulator 1 transmits and interrupts transmitting a light intensity modulated signal so as to avoid a synchronization of the light intensity modulated signal of the a first tranmitting apparatus with a light intensity modulated signal transmitted from a second light-wave distance measuring apparatus. The operation of the intermittent controller prevents a misfunction of the apparatus. Provisions of a self-speed detector, a time marker and a light transmission interval measuring circuit enables the apparatus to detect the speed of a target object. Thus, the apparatus is suitable for mounting on a vehicle. The apparatus operates accurately even when both the vehicle and the target object are moving. The apparatus also accurately operates without interference even when other similar light-wave distance measuring apparatus for vehicles are used in a small area.Type: GrantFiled: March 5, 1992Date of Patent: November 9, 1993Assignee: Stanley Electric Co., Ltd.Inventors: Yukio Omamyuda, Shigeru Kimura, Toru Tanabe, Kazuhisa Iwasaki, Takao Seto, Hideki Kitamura, Kazuhiko Sugimura, Yasushi Senoo
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Patent number: 5257173Abstract: A light source is constituted by a plurality of light emitting units which are arranged opposite to a light irradiating lens such that light emission from a part of the light source is changed to light emission from the whole surface of the light source and vice versa. In addition, a light irradiating apparatus having a light emitting diode used therefor as a light source comprises optical fiber(s) arranged between the light emitting diode and a light emitting lens such that a light emitted from the light emitting diode can be conducted to the light irradiating lens is disclosed. One end of each optical fiber is located at the position in the vicinity of the light emitting diode and other end of the same is located at the position substantially coincident with the focus of the light irradiating lens. In another embodiment, an optical fiber employable for an optical radar system has an outlet end of the optical fiber which is formed by two inclined surfaces in a wedge-shaped configuration.Type: GrantFiled: December 3, 1991Date of Patent: October 26, 1993Assignee: Stanley Electric Co., Ltd.Inventors: Yukio Ohmamyuda, Shigeru Kimura, Toru Tanabe, Kazuhisa Iwasaki, Takao Seto, Hideki Kitamura, Kazuhiko Sugimura, Yasushi Senoo
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Patent number: 5251000Abstract: To measure a distance between two running vehicles a measurement signal is first generated by irradiating a light beam toward an article to be measured and then receiving the reflected light beam from the article. A reference signal and the measurement signal generated in the above way are input to a digital mix-down circuit which comprises two-stage flip-flop circuit to determine a phase difference between the reference signal and the measurement signal. The apparatus includes a clock delay circuit for delaying the high-going (rising) edge of the measurement signal while the reference signal is going high at an output terminal of a flip-flop circuit on the input side of the digital mix-down circuit, and a data delay circuit for delaying the down-going (falling) edge of the reference signal input into a data terminal of the flip-flop circuit.Type: GrantFiled: December 10, 1992Date of Patent: October 5, 1993Assignee: Stanley Electric Co., Ltd.Inventors: Yukio Ohmamyuda, Shigeru Kimura, Toru Tanabe, Takao Seto, Kazuhisa Iwasaki, Hideki Kitamura, Yasushi Senoo
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Patent number: D628685Type: GrantFiled: February 5, 2010Date of Patent: December 7, 2010Assignee: Mitsubishi Electric CorporationInventors: Yutaka Aoyama, Kazuhisa Iwasaki, Shinji Oka, Takahiro Iinuma
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Patent number: D629097Type: GrantFiled: February 12, 2010Date of Patent: December 14, 2010Assignee: Mitsubishi Electric CorporationInventors: Yutaka Aoyama, Kazuhisa Iwasaki, Shinji Oka, Takahiro Iinuma