Patents by Inventor Koji Matsuzawa
Koji Matsuzawa 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: 10429086Abstract: When hot water supply and room heating are requested simultaneously, a hot water supply operation, by which energy saving is achieved without impairing the comfortability in a room, is performed. A heat-pump apparatus of a variable operation capacity type, a primary water circuit, a hot water tank, a room heater, and a controller are provided. The controller sets a hot water supply operation completion target time in the case of a requests for a simultaneous hot water supply and room heating operation, based on a temperature difference between the outdoor air temperature and the indoor temperature, and determines the rotation speed of the compressor in the hot water supply operation completion target time set.Type: GrantFiled: May 12, 2015Date of Patent: October 1, 2019Assignee: Mitsubishi Electric CorporationInventors: Jun Yoshida, Taro Hattori, Kazutaka Suzuki, Koji Matsuzawa, Hirokazu Minamisako, Kei Takeyama, Masahiro Hata
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Patent number: 9920936Abstract: An object is to enable the dealer or user of an air conditioning apparatus to recognize that the heat dissipation amount of a heat exchange device is less than the heat dissipation amount expected of the air conditioning apparatus. A control device detects a hot water outflow temperature being a temperature of a fluid heated by a heat pump device, and a return temperature being a temperature of the fluid before being heated by the heat pump device, and checks whether or not a temperature difference between the detected hot water outflow temperature and the detected return temperature is smaller than a predetermined first value. If the control device judges that the temperature difference is smaller than the first value, it displays insufficiency of the heat dissipation amount of a heat exchange device, on a display of a remote controller.Type: GrantFiled: October 11, 2013Date of Patent: March 20, 2018Assignee: Mitsubishi Electric CorporationInventors: Yoshiro Aoyagi, Taro Hattori, Koji Matsuzawa
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Publication number: 20180051894Abstract: When hot water supply and room heating are requested simultaneously, a hot water supply operation, by which energy saving is achieved without impairing the comfortability in a room, is performed. A heat-pump apparatus of a variable operation capacity type, a primary water circuit, a hot water tank, a room heater, and a controller are provided. The controller sets a hot water supply operation completion target time in the case of a requests for a simultaneous hot water supply and room heating operation, based on a temperature difference between the outdoor air temperature and the indoor temperature, and determines the rotation speed of the compressor in the hot water supply operation completion target time set.Type: ApplicationFiled: May 12, 2015Publication date: February 22, 2018Inventors: Jun YOSHIDA, Taro HATTORI, Kazutaka SUZUKI, Koji MATSUZAWA, Hirokazu MINAMISAKO, Kei TAKEYAMA, Masahiro HATA
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Patent number: 9897343Abstract: A water heating apparatus, including: a heat source circuit including a first circulation pump, a heat pump, and a heat source side of a hot water supply tank heat exchanger that are connected to each other by a pipe, the heat source circuit being configured to allow water to circulate therethrough; a hot water supply circuit including a second circulation pump, a use side of the hot water supply tank-use heat exchanger, and a hot water supply tank that are connected to each other by a pipe, the hot water supply circuit being configured to allow water to circulate therethrough; and a control unit configured to perform, when the hot water supply tank temperature falls below the reheating tank temperature, reheating, and control a flow rate of the second circulation pump.Type: GrantFiled: April 20, 2015Date of Patent: February 20, 2018Assignee: Mitsubishi Electric CorporationInventor: Koji Matsuzawa
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Patent number: 9797614Abstract: An air conditioning system, a set temperature determining device determines a target temperature of water to be supplied to an indoor heat exchanger, based on [“target outflow temperature”=“current outflow temperature”+((“inlet and outlet temperature difference”/“indoor and outdoor temperature difference”)דset temperature difference”)]. The indoor and outdoor temperature difference is a difference between an indoor temperature and an outdoor temperature, the inlet and outlet temperature difference is a difference between temperatures of water at the inlet side and the outlet side of an intermediate heat exchanger, and the set temperature difference is a difference between an indoor temperature and a set temperature. A control device controls an outdoor unit in response to the target temperature determined by the set temperature determining device.Type: GrantFiled: February 24, 2010Date of Patent: October 24, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yohei Kato, Takashi Okazaki, So Nomoto, Koji Matsuzawa
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Patent number: 9562701Abstract: A controller performs a first control that controls a temperature of water (heat medium) flowing out of a heat source device on the basis of an outside air temperature and a temperature difference between chronologically preceding and following outside air temperatures that are detected by an outdoor temperature sensor. The controller controls the temperature of the subject to be controlled to a target temperature by performing the first control.Type: GrantFiled: May 31, 2011Date of Patent: February 7, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yohei Kato, Koji Matsuzawa
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Patent number: 9291376Abstract: An auxiliary heater control device can be readily attached to a hot water heating system configured with a simple water circuit without a hot water storage tank, and is capable of preventing freezing of circulating water such that use of an auxiliary heater is minimized. When a sensed temperature tS sensed by a temperature sensor is in a range, a control device increases a rotational speed of a circulation pump. When the sensed temperature tS is in a range, the control device increases the rotational speed of the circulation pump and lowers an operating frequency of a compressor. When the sensed temperature tS is in a range, the control device increases the rotational speed of the circulation pump, lowers the operating frequency of the compressor, and activates an auxiliary heater.Type: GrantFiled: November 25, 2009Date of Patent: March 22, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro Ushijima, Kazutaka Suzuki, Koji Matsuzawa, Nobuaki Uehara
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Publication number: 20150338129Abstract: A water heating apparatus, including: a heat source circuit including a first circulation pump, a heat pump, and a heat source side of a hot water supply tank heat exchanger that are connected to each other by a pipe, the heat source circuit being configured to allow water to circulate therethrough; a hot water supply circuit including a second circulation pump, a use side of the hot water supply tank-use heat exchanger, and a hot water supply tank that are connected to each other by a pipe, the hot water supply circuit being configured to allow water to circulate therethrough; and a control unit configured to perform, when the hot water supply tank temperature falls below the reheating tank temperature, reheating, and control a flow rate of the second circulation pump.Type: ApplicationFiled: April 20, 2015Publication date: November 26, 2015Inventor: Koji MATSUZAWA
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Publication number: 20140174117Abstract: An object is to enable the dealer or user of an air conditioning apparatus to recognize that the heat dissipation amount of a heat exchange device is less than the heat dissipation amount expected of the air conditioning apparatus. A control device detects a hot water outflow temperature being a temperature of a fluid heated by a heat pump device, and a return temperature being a temperature of the fluid before being heated by the heat pump device, and checks whether or not a temperature difference between the detected hot water outflow temperature and the detected return temperature is smaller than a predetermined first value. If the control device judges that the temperature difference is smaller than the first value, it displays insufficiency of the heat dissipation amount of a heat exchange device, on a display of a remote controller.Type: ApplicationFiled: October 11, 2013Publication date: June 26, 2014Applicant: Mitsubishi Electric CorporationInventors: Yoshiro AOYAGI, Taro HATTORI, Koji MATSUZAWA
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Publication number: 20140041848Abstract: A controller performs a first control that controls a temperature of water (heat medium) flowing out of a heat source device on the basis of an outside air temperature and a temperature difference between chronologically preceding and following outside air temperatures that are detected by an outdoor temperature sensor. The controller controls the temperature of the subject to be controlled to a target temperature by performing the first control.Type: ApplicationFiled: May 31, 2011Publication date: February 13, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yohei Kato, Koji Matsuzawa
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Patent number: 8615568Abstract: Provided is a presence display terminal device comprising a registration unit for registering presence targets, an update information receiving unit for receiving update information indicating an update of the presence targets registered, a control unit for displaying a predetermined one of the presence targets registered, in a screen, and an update presence information acquisition unit for deciding it on the basis of the update information whether or not the presence target displayed on the screen is to be updated, thereby to acquire the updated presence information of the presence target decided to have been updated.Type: GrantFiled: October 17, 2006Date of Patent: December 24, 2013Assignee: Access Co., Ltd.Inventor: Koji Matsuzawa
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Patent number: 8429152Abstract: A terminal device capable of displaying content is provided. The terminal device analyzes content data, which includes a plurality of display elements, and extracts one or more display elements satisfying a predetermined condition from the plurality of display elements. The terminal device associates each extracted display element with a corresponding display location information. The terminal device renders the extracted display elements in a predetermined display mode. The terminal device accepts a user selection of one of the extracted display elements, and displays the plurality of display elements, including display elements which are not displayed in the predetermined display mode, based on the display location information associated with the selected display element.Type: GrantFiled: July 23, 2007Date of Patent: April 23, 2013Assignee: Access Co., Ltd.Inventors: Noboru Takahashi, Koji Matsuzawa, Satoshi Aida
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Patent number: 8423915Abstract: Provided is a terminal device including: operation means for receiving an input operation by a user; non-operation detection means for detecting whether a non-operation state in the operation means has continued for a predetermined period of time; and icon display means used when it is detected that the non-operation state has continued for the predetermined time, for shifting to another mode different from the current mode and displaying an icon corresponding to the new mode.Type: GrantFiled: July 23, 2007Date of Patent: April 16, 2013Assignee: Access Co., Ltd.Inventors: Satoshi Aida, Noboru Takahashi, Koji Matsuzawa, Ohki Chiba
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Publication number: 20120291468Abstract: It is intended to realize an air conditioning system of high operational efficiency without reducing the user's comfort. In an air conditioning system 1, a set temperature determining device 31 determines a target temperature of water to be supplied to an indoor heat exchanger 12, based on [“target outflow temperature”=“current outflow temperature”+((“inlet and outlet temperature difference”/“indoor and outdoor temperature difference”)דset temperature difference”)]. The indoor and outdoor temperature difference is a difference between an indoor temperature and an outdoor temperature, the inlet and outlet temperature difference is a difference between temperatures of water at the inlet side and the outlet side of an intermediate heat exchanger 9, and the set temperature difference is a difference between an indoor temperature and a set temperature. A control device 32 controls an outdoor unit 2 in response to the target temperature determined by the set temperature determining device 31.Type: ApplicationFiled: February 24, 2010Publication date: November 22, 2012Applicant: Mitsubishi Electric CorporationInventors: Yohei Kato, Takashi Okazaki, So Momoto, Koji Matsuzawa
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Publication number: 20120279237Abstract: An auxiliary heater control device can be readily attached to a hot water heating system configured with a simple water circuit without a hot water storage tank, and is capable of preventing freezing of circulating water such that use of an auxiliary heater is minimized. When a sensed temperature tS sensed by a temperature sensor is in a range, a control device increases a rotational speed of a circulation pump. When the sensed temperature tS is in a range, the control device increases the rotational speed of the circulation pump and lowers an operating frequency of a compressor. When the sensed temperature tS is in a range, the control device increases the rotational speed of the circulation pump, lowers the operating frequency of the compressor, and activates an auxiliary heater.Type: ApplicationFiled: November 25, 2009Publication date: November 8, 2012Applicant: Mitsubishi Electric CorporationInventors: Takahiro Ushijima, Kazutaka Suzuki, Koji Matsuzawa, Nobuaki Uehara
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Patent number: 7984376Abstract: In a state in which an operation screen for operating a frame in a frame page has been displayed, whether a change occurring to a frame in the page different from the currently displayed frame is a change arising from an operation satisfying a condition that is regarded to represent a user's explicit intention to view the different frame or not is judged. If the change is judged by the judgment to be a change arising from an operation satisfying the condition, the display is shifted to a screen showing the page in whole display and notifying the user of the frame to which the change has occurred.Type: GrantFiled: April 27, 2005Date of Patent: July 19, 2011Assignee: Access Co., Ltd.Inventors: Shinji Yamabuchi, Takuya Harakawa, Michimasa Uematsu, Shunji Ito, Koji Matsuzawa, Satoshi Aida, Masayuki Nagamachi
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Publication number: 20100275150Abstract: In a terminal apparatus for displaying as an image, a document in which a link is set, on a display screen which also serves as a touch panel, a favorable operation is achieved including link selecting operation, or the like, while eliminating a conflict in a touch operation. To this end, when a touch is made on a browser screen by a finger 350 of a user, a link selection is allowed only within a link effective field 360 including a position being touched. Then, when the touch is released within the link effective field 360 transition is made to a destination of the link being in the touched state. When the touch is moved outwardly from inside the link effective field 360 while keeping the touched state of the touch, a predetermined process other than the link selection is performed based on at least one of a relative direction or a moved distance of the touch with respect to the initial position of the touch.Type: ApplicationFiled: October 1, 2008Publication date: October 28, 2010Applicant: ACCESS CO., LTD.Inventors: Ohki Chiba, Koji Matsuzawa
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Publication number: 20090312064Abstract: Provided is a terminal device including: operation means for receiving an input operation by a user; non-operation detection means for detecting whether a non-operation state in the operation means has continued for a predetermined period of time; and icon display means used when it is detected that the non-operation state has continued for the predetermined time, for shifting to another mode different from the current mode and displaying an icon corresponding to the new mode.Type: ApplicationFiled: July 23, 2007Publication date: December 17, 2009Applicant: ACCESS CO., LTD.Inventors: Satoshi Aida, Noboru Takahashi, Koji Matsuzawa, Ohki Chiba
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Publication number: 20090305685Abstract: A terminal device capable of displaying content, comprising a content data analyzing means for analyzing content data; a data extracting means for extracting data satisfying a predetermined condition among the content data, based on the analyzed result; a location information associating means for associating to each of the extracted data, corresponding location information in the content obtained as the analyzed result; a display element generating means for generating each of the associated extracted data as selectable display element; a rendering means for rendering the generated display element and for displaying in a mode in which the display element is displayed; and a selecting means for selecting the rendered display element.Type: ApplicationFiled: July 23, 2007Publication date: December 10, 2009Inventors: Noboru Takahashi, Koji Matsuzawa, Satoshi Aida
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Publication number: 20090292769Abstract: Provided is a presence display terminal device comprising a registration unit for registering presence targets, an update information receiving unit for receiving update information indicating an update of the presence targets registered, a control unit for displaying a predetermined one of the presence targets registered, in a screen, and an update presence information acquisition unit for deciding it on the basis of the update information whether or not the presence target displayed on the screen is to be updated, thereby to acquire the updated presence information of the presence target decided to have been updated.Type: ApplicationFiled: October 17, 2006Publication date: November 26, 2009Applicant: Access Co., Ltd.Inventor: Koji Matsuzawa