Patents by Inventor Takeo Ueno
Takeo Ueno 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: 11614264Abstract: An icemaking system includes: a refrigerant circuit that executes a vapor compression refrigeration cycle; a circulation circuit that circulates solution as a cooling target of the refrigerant circuit; and a control device that controls refrigerant evaporation temperature at the refrigerant circuit. The circulation circuit includes a solution flow path of: an ice generator; a solution tank that stores the solution; and a pump that pressure feeds the solution to the solution flow path. The refrigerant circuit includes: an evaporator of the ice generator; a compressor; a condenser; and an expansion valve. The control device includes a central processing unit (CPU) that adjusts to lower evaporation temperature at the evaporator as the solution has higher solute concentration.Type: GrantFiled: January 11, 2019Date of Patent: March 28, 2023Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Azuma Kondou, Takeo Ueno, Shouhei Yasuda, Takahito Nakayama, Satoru Sakae
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Publication number: 20220325933Abstract: An ice supply device includes an ice storage tank, a supply path, and a water flow path. The ice storage tank is configured to store sherbet ice. The sherbet ice may be taken out of the ice storage tank through the supply path. The water flow path joins the supply path. The water flow path is configured to carry flow of water there through.Type: ApplicationFiled: June 24, 2022Publication date: October 13, 2022Inventors: Shunsuke TOUYA, Takeo UENO
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Patent number: 11326817Abstract: An ice making system includes: a refrigerant circuit that performs a vapor compression refrigeration cycle and that includes a compressor, a condenser that condenses refrigerant discharged from the compressor, a first expansion valve with an adjustable opening degree that decompresses the refrigerant from the condenser, a flooded evaporator that evaporates the refrigerant decompressed by the first expansion valve, and a superheater that imparts a degree of superheating to the refrigerant discharged from the flooded evaporator; a circulation circuit that circulates a medium that is cooled by the flooded evaporator; and a control device that controls the adjustable opening degree of the first expansion valve such that the superheater imparts to the refrigerant discharged from the flooded evaporator a degree of superheating at which dryness of the refrigerant is kept within a predetermined range of less than 1.Type: GrantFiled: December 14, 2018Date of Patent: May 10, 2022Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Kouichi Kita, Azuma Kondou, Shouhei Yasuda, Keisuke Nakatsuka, Kazuyoshi Nomura, Takeo Ueno
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Patent number: 11306956Abstract: A double pipe icemaker includes an inner pipe, and an outer pipe provided radially outside the inner pipe and coaxially with the inner pipe. The outer pipe allows a cooling target to flow in the inner pipe and a refrigerant to flow in a space between the inner and outer pipes. The outer pipe has a wall provided with at least one nozzle to jet the refrigerant into the space. The nozzle has a jet port. The jet port may allow the refrigerant to jet in a radial direction including at least an axial direction and a circumferential direction of the inner pipe. A shielding plate may be provided ahead of the jet port in a jetting direction such that the refrigerant hitting the shielding plate expands along a surface of the shielding plate in a radial direction.Type: GrantFiled: January 11, 2019Date of Patent: April 19, 2022Assignee: Daikin Industries, Ltd.Inventors: Takahito Nakayama, Ryouji Matsue, Keisuke Nakatsuka, Satoru Ohkura, Takeo Ueno
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Patent number: 11300343Abstract: An icemaking system includes a circulation circuit configured to circulate icemaking solution, at least one icemaker provided in the circulation circuit, a cooling mechanism, a first detector and an adjuster. The icemaker includes a cooling chamber and a scraping mechanism. The cooling chamber has an inflow port and an exhaust port of solution, and the cooling chamber allows the solution to flow in the cooling chamber. The scraping mechanism scrapes ice generated on an inner surface of the cooling chamber. The cooling mechanism cools the solution in the cooling chamber. The first detector detects whether the inflow port of the cooling chamber has an ice nucleus. The adjuster adjusts a cooling temperature of the solution in accordance with a detection result of the first detector.Type: GrantFiled: September 26, 2019Date of Patent: April 12, 2022Assignee: Daikin Industries, Ltd.Inventors: Kouichi Kita, Azuma Kondou, Shunsuke Touya, Yuuya Seta, Shouhei Yasuda, Takeo Ueno
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Publication number: 20220057130Abstract: A method for controlling an operation of an ice-making machine configured to make ice by cooling a medium to be cooled, through heat exchange with a refrigerant. The method includes increasing an evaporation temperature of the refrigerant to be supplied to the ice-making machine when a drive current for an ice scraper of the ice-making machine is more than a first current value.Type: ApplicationFiled: August 28, 2019Publication date: February 24, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kouichi KITA, Akihiro KAJIMOTO, Kazuhiko NISHIHARA, Takamasa ITOU, Yuuji YAMANAKA, Takeo UENO
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Publication number: 20220042733Abstract: An icemaking system includes a circulation circuit configured to circulate icemaking solution, at least one icemaker provided in the circulation circuit, a cooling mechanism, a first detector and an adjuster. The icemaker includes a cooling chamber and a scraping mechanism. The cooling chamber has an inflow port and an exhaust port of solution, and the cooling chamber allows the solution to flow in the cooling chamber. The scraping mechanism scrapes ice generated on an inner surface of the cooling chamber. The cooling mechanism cools the solution in the cooling chamber. The first detector detects whether the inflow port of the cooling chamber has an ice nucleus. The adjuster adjusts a cooling temperature of the solution in accordance with a detection result of the first detector.Type: ApplicationFiled: September 26, 2019Publication date: February 10, 2022Inventors: Kouichi KITA, Azuma KONDOU, Shunsuke TOUYA, Yuuya SETA, Shouhei YASUDA, Takeo UENO
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Patent number: 11118825Abstract: an ice making system includes a tank that stores a medium to be cooled, an ice making machine that cools the medium and makes ice, a pump that circulates the medium between the tank and the ice making machine, a de-icing mechanism that heats the medium and melts the ice in the ice making machine, and a control device that controls operations of the ice making machine, the pump, and the de-icing mechanism. The ice making machine includes a cooling chamber that cools the medium, an inflow port through which the medium flows into the cooling chamber, and a discharge port through which the medium is discharged from the cooling chamber. The control device activates the de-icing mechanism when a pressure difference between a pressure of the medium at the inflow port and a pressure of the medium at the discharge port exceeds a predetermined value.Type: GrantFiled: December 12, 2018Date of Patent: September 14, 2021Assignee: Daikin Industries, Ltd.Inventors: Azuma Kondou, Shouhei Yasuda, Takahito Nakayama, Kazuyoshi Nomura, Takeo Ueno
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Patent number: 10995975Abstract: An ice making system includes: a tank that stores a medium to be cooled; an ice making machine that cools the medium and makes ice; a pump that circulates the medium between the tank and the ice making machine; a de-icing mechanism that performs a de-icing operation of heating and melting the medium in the ice making machine; and a control device that controls operations of the ice making machine, the pump, and the de-icing mechanism. The ice making machine includes: a cooling chamber in which the medium is cooled; a blade mechanism that rotates in the cooling chamber and disperses the ice; a detector that detects a locked state of the blade mechanism; and a first temperature sensor that is disposed at a discharge port of the cooling chamber and detects a temperature of the medium discharged from the cooling chamber.Type: GrantFiled: December 14, 2018Date of Patent: May 4, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Azuma Kondou, Takeo Ueno, Kouichi Kita, Ryouji Matsue, Satoru Ohkura
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Publication number: 20210071927Abstract: An ice making system includes: a tank that stores a medium to be cooled; an ice making machine that cools the medium and makes ice; a pump that circulates the medium between the tank and the ice making machine; a de-icing mechanism that performs a de-icing operation of heating and melting the medium in the ice making machine; and a control device that controls operations of the ice making machine, the pump, and the de-icing mechanism. The ice making machine includes: a cooling chamber in which the medium is cooled; a blade mechanism that rotates in the cooling chamber and disperses the ice; a detector that detects a locked state of the blade mechanism; and a first temperature sensor that is disposed at a discharge port of the cooling chamber and detects a temperature of the medium discharged from the cooling chamber.Type: ApplicationFiled: December 14, 2018Publication date: March 11, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Azuma Kondou, Takeo Ueno, Kouichi Kita, Ryouji Matsue, Satoru Ohkura
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Publication number: 20200386462Abstract: An icemaking system includes: a refrigerant circuit that executes a vapor compression refrigeration cycle; a circulation circuit that circulates solution as a cooling target of the refrigerant circuit; and a control device that controls refrigerant evaporation temperature at the refrigerant circuit. The circulation circuit includes a solution flow path of: an ice generator; a solution tank that stores the solution; and a pump that pressure feeds the solution to the solution flow path. The refrigerant circuit includes: an evaporator of the ice generator; a compressor; a condenser; and an expansion valve. The control device includes a central processing unit (CPU) that adjusts to lower evaporation temperature at the evaporator as the solution has higher solute concentration.Type: ApplicationFiled: January 11, 2019Publication date: December 10, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Azuma Kondou, Takeo Ueno, Shouhei Yasuda, Takahito Nakayama, Satoru Sakae
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Publication number: 20200386461Abstract: A double pipe icemaker includes an inner pipe, and an outer pipe provided radially outside the inner pipe and coaxially with the inner pipe. The outer pipe allows a cooling target to flow in the inner pipe and a refrigerant to flow in a space between the inner and outer pipes. The outer pipe has a wall provided with at least one nozzle to jet the refrigerant into the space. The nozzle has a jet port. The jet port may allow the refrigerant to jet in a radial direction including at least an axial direction and a circumferential direction of the inner pipe. A shielding plate may be provided ahead of the jet port in a jetting direction such that the refrigerant hitting the shielding plate expands along a surface of the shielding plate in a radial direction.Type: ApplicationFiled: January 11, 2019Publication date: December 10, 2020Inventors: Takahito NAKAYAMA, Ryouji MATSUE, Keisuke NAKATSUKA, Satoru OHKURA, Takeo UENO
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Publication number: 20200386463Abstract: An ice making system includes a tank that stores a medium to be cooled, an ice making machine that cools the medium and makes ice, a pump that circulates the medium between the tank and the ice making machine, a de-icing mechanism that heats the medium and melts the ice in the ice making machine, and a control device that controls operations of the ice making machine, the pump, and the de-icing mechanism. The ice making machine includes a cooling chamber that cools the medium, an inflow port through which the medium flows into the cooling chamber, and a discharge port through which the medium is discharged from the cooling chamber. The control device activates the de-icing mechanism when a pressure difference between a pressure of the medium at the inflow port and a pressure of the medium at the discharge port exceeds a predetermined value.Type: ApplicationFiled: December 12, 2018Publication date: December 10, 2020Inventors: Azuma KONDOU, Shouhei YASUDA, Takahito NAKAYAMA, Kazuyoshi NOMURA, Takeo UENO
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Publication number: 20200348058Abstract: An ice making system includes: a refrigerant circuit that performs a vapor compression refrigeration cycle and that includes a compressor, a condenser that condenses refrigerant discharged from the compressor, a first expansion valve with an adjustable opening degree that decompresses the refrigerant from the condenser, a flooded evaporator that evaporates the refrigerant decompressed by the first expansion valve, and a superheater that imparts a degree of superheating to the refrigerant discharged from the flooded evaporator; a circulation circuit that circulates a medium that is cooled by the flooded evaporator; and a control device that controls the adjustable opening degree of the first expansion valve such that the superheater imparts to the refrigerant discharged from the flooded evaporator a degree of superheating at which dryness of the refrigerant is kept within a predetermined range of less than 1.Type: ApplicationFiled: December 14, 2018Publication date: November 5, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kouichi Kita, Azuma Kondou, Shouhei Yasuda, Keisuke Nakatsuka, Kazuyoshi Nomura, Takeo Ueno
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Patent number: 8411264Abstract: An apparatus for inspecting a substrate surface is provided, which includes illumination optics for irradiating the substrate surface linearly with rectilinearly polarized light from an oblique direction, detection optics for acquiring images of the substrate surface, each of the images being formed by the light scattered from the light-irradiated substrate surface, and means for comparing an image selected as an inspection image from the plurality of substrate surface images that the detection optics has acquired to detect defects, and another image selected from the plural images of the substrate surface as a reference image different from the inspection image; the illumination optics being formed with polarization control means for controlling a polarizing direction of the light according to a particular scanning direction of the substrate or a direction orthogonal to the scanning direction.Type: GrantFiled: July 17, 2009Date of Patent: April 2, 2013Assignee: Hitachi High-Technologies CorporationInventors: Takeo Ueno, Hiroyuki Nakano, Yasuhiro Yoshitake
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Patent number: 7752864Abstract: A refrigeration apparatus (1) is provided with a refrigerant circuit (1E) along which are connected a compressor (2), an outdoor heat exchanger (4), an expansion mechanism, an indoor heat exchanger (41) for providing room air conditioning, and a cooling heat exchanger (45, 51) for providing storage compartment cooling. The refrigerant circuit (1E) includes a discharge side three way switch valve (101) for varying the flow rate of a portion of the refrigerant which is discharged out of the compressor (2) and then distributed to the indoor heat exchanger (41) and the outdoor heat exchanger (4) during a heat recovery operation mode in which the indoor heat exchanger (41) and the outdoor heat exchanger (4) operate as condensers. As a result of such arrangement, even when the amount of heat obtained in the cooling heat exchanger (45, 51) exceeds the amount of heat required in the indoor heat exchanger (41), surplus heat is discharged without excessive decrease in the discharge pressure of the compressor (2).Type: GrantFiled: August 1, 2005Date of Patent: July 13, 2010Assignee: Daikin Industries, Ltd.Inventors: Masaaki Takegami, Takeo Ueno, Kenji Tanimoto, Satoru Sakae
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Publication number: 20100014075Abstract: An apparatus for inspecting a substrate surface is provided, which includes illumination optics for irradiating the substrate surface linearly with rectilinearly polarized light from an oblique direction, detection optics for acquiring images of the substrate surface, each of the images being formed by the light scattered from the light-irradiated substrate surface, and means for comparing an image selected as an inspection image from the plurality of substrate surface images that the detection optics has acquired to detect defects, and another image selected from the plural images of the substrate surface as a reference image different from the inspection image; the illumination optics being formed with polarization control means for controlling a polarizing direction of the light according to a particular scanning direction of the substrate or a direction orthogonal to the scanning direction.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Inventors: Takeo Ueno, Hiroyuki Nakano, Yasuhiro Yoshitake
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Publication number: 20100014083Abstract: An apparatus for inspecting a substrate surface is provided, which includes illumination optics for irradiating the substrate surface linearly with rectilinearly polarized light from an oblique direction, detection optics for acquiring images of the substrate surface, each of the images being formed by the light scattered from the light-irradiated substrate surface, and means for comparing an image selected as an inspection image from the plurality of substrate surface images that the detection optics has acquired to detect defects, and another image selected from the plural images of the substrate surface as a reference image different from the inspection image; the illumination optics being formed with polarization control means for controlling a polarizing direction of the light according to a particular scanning direction of the substrate or a direction orthogonal to the scanning direction.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Inventors: Takeo UENO, Hiroyuki Nakano, Yasuhiro Yoshitake
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Publication number: 20090031737Abstract: A refrigerant circuit (20) includes a low stage compressor (101, 102, 121, 122), a high stage compressor (41, 42, 43), an outdoor heat exchanger (44) and a utilization side heat exchanger (83, 93). During a defrosting operation of the refrigeration system (10), the high stage compressor (41, 42, 43) is driven. Refrigerant discharged from the high stage compressor (41, 42, 43) is pumped into the utilization side heat exchanger (83, 93) to heat frost on it from its inside. Thereafter, the refrigerant evaporates in the outdoor heat exchanger (44), is then compressed by the high stage compressor (41, 42, 43) and is sent again to the utilization side heat exchanger (83, 93).Type: ApplicationFiled: July 3, 2006Publication date: February 5, 2009Inventors: Takeo Ueno, Masaaki Takegami, Koichi Kita, Kenji Tanimoto, Yoshinari Oda, Kazuyoshi Nomura, Azuma Kondo
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Publication number: 20090007589Abstract: A refrigeration apparatus (1) is provided with a refrigerant circuit (1E) along which are connected a compressor (2), an outdoor heat exchanger (4), an expansion mechanism, an indoor heat exchanger (41) for providing room air conditioning, and a cooling heat exchanger (45, 51) for providing storage compartment cooling. The refrigerant circuit (1E) includes a discharge side three way switch valve (101) for varying the flow rate of a portion of the refrigerant which is discharged out of the compressor (2) and then distributed to the indoor heat exchanger (41) and the outdoor heat exchanger (4) during a heat recovery operation mode in which the indoor heat exchanger (41) and the outdoor heat exchanger (4) operate as condensers. As a result of such arrangement, even when the amount of heat obtained in the cooling heat exchanger (45, 51) exceeds the amount of heat required in the indoor heat exchanger (41), surplus heat is discharged without excessive decrease in the discharge pressure of the compressor (2).Type: ApplicationFiled: August 1, 2005Publication date: January 8, 2009Inventors: Masaaki Takegami, Takeo Ueno, Kenji Tanimoto, Satoru Sakae