Patents by Inventor Yuji Kawazoe
Yuji Kawazoe 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: 11560039Abstract: A vehicular heater includes a heat medium circuit connected to a heater core that heats vent air via heat exchange with a heat medium. The heat medium circuit includes a first flow path connected to the heater core through a power unit, and a second flow path arranged in parallel with the first flow path and connected to the heater core through a heat source different from the power unit. A controller adjusts a first flow rate of the heat medium in the first flow path to be larger than a second flow rate of the heat medium in the second flow path when the power unit is operating.Type: GrantFiled: June 10, 2020Date of Patent: January 24, 2023Assignee: DENSO CORPORATIONInventors: Mitsuhiro Nakazawa, Hitoshi Nakahata, Tetsuya Takechi, Yoshihiko Uesugi, Yuji Kawazoe
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Publication number: 20200298665Abstract: A vehicular heater includes a heat medium circuit connected to a heater core that heats vent air via heat exchange with a heat medium. The heat medium circuit includes a first flow path connected to the heater core through a power unit, and a second flow path arranged in parallel with the first flow path and connected to the heater core through a heat source different from the power unit. A controller adjusts a first flow rate of the heat medium in the first flow path to be larger than a second flow rate of the heat medium in the second flow path when the power unit is operating.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Inventors: Mitsuhiro NAKAZAWA, Hitoshi NAKAHATA, Tetsuya TAKECHI, Yoshihiko UESUGI, Yuji KAWAZOE
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Publication number: 20200292218Abstract: A refrigeration cycle device includes an outside evaporator, an inside evaporator, an evaporating pressure adjusting valve, a charging port, a pressure change buffer. The outside evaporator exchanges heat between a refrigerant flowing out of a heater and an outside air. The inside evaporator exchanges heat between the refrigerant flowing out of the outside evaporator and a heat-exchange target medium. The evaporating pressure adjusting valve is disposed at a position downstream of the inside evaporator and adjusts an evaporating pressure of the refrigerant in the inside evaporator. The charging port is disposed at a position downstream of the evaporating pressure adjusting valve. The pressure change buffer is disposed between the evaporating pressure adjusting valve and the charging port and defines a buffer space.Type: ApplicationFiled: June 3, 2020Publication date: September 17, 2020Inventor: Yuji KAWAZOE
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Patent number: 10611230Abstract: A heater unit includes a heater case and a high-voltage component disposed on a mount surface of the heater case. A protector is disposed in front of the heater unit. The protector includes a protection cover and a protection member disposed laterally of the high-voltage component. The protection member includes a side surface (support wall) disposed along a forward-rearward direction; that is, an assumed collision direction. The leading edge of the side surface protrudes further than the high-voltage component. The length of the side surface in the forward-rearward direction is longer than the length from a position on the heater case with which the side surface comes into contact in a collision to a front surface of the high-voltage component.Type: GrantFiled: July 13, 2018Date of Patent: April 7, 2020Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Hideaki Yokota, Hirokazu Yamadaki, Yuji Kawazoe, Mizuaki Kitajima, Takuya Abiko
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Publication number: 20190023116Abstract: A heater unit includes a heater case and a high-voltage component disposed on a mount surface of the heater case. A protector is disposed in front of the heater unit. The protector includes a protection cover and a protection member disposed laterally of the high-voltage component. The protection member includes a side surface (support wall) disposed along a forward-rearward direction; that is, an assumed collision direction. The leading edge of the side surface protrudes further than the high-voltage component. The length of the side surface in the forward-rearward direction is longer than the length from a position on the heater case with which the side surface comes into contact in a collision to a front surface of the high-voltage component.Type: ApplicationFiled: July 13, 2018Publication date: January 24, 2019Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Hideaki YOKOTA, Hirokazu YAMADAKI, Yuji KAWAZOE, Mizuaki KITAJIMA, Takuya ABIKO
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Patent number: 9290078Abstract: An air conditioner for a vehicle includes an electric heater arranged downstream of a heat exchanger in an air flow direction, a defroster air outlet, a driver-foot air outlet through which air is blown toward a foot area of a driver, a knee air outlet through which air is blown toward a knee area of the driver, a door device which controls an air amount blown into a vehicle compartment by opening or closing the air outlets. When an immediate heating operation is performed by an operation of an immediate heating switch, the door device opens the defroster air outlet and at least one of the driver-foot air outlet and the knee air outlet, and the electric heater heats a total amount of air that is to be blown through the at least one of the driver-foot air outlet and the knee air outlet.Type: GrantFiled: August 22, 2012Date of Patent: March 22, 2016Assignee: DENSO CORPORATIONInventors: Koji Ota, Manabu Maeda, Yuji Kawazoe, Shinji Iwama
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Patent number: 8633419Abstract: A difference processing circuit receives input of welding images taken by a CCD camera in real time and then differentiates power monitoring images recorded in a memory from welding images to obtain difference processing reflected light images. Due to the difference processing performed by a difference processing circuit, foreign matter images included in welding images and power monitoring images are eliminated and the difference processing reflected light images that are obtained do not include any foreign matter images. A quality judgment device uses the difference processing reflected light images obtained by a difference processing circuit and conducts a quality judgment. As described above, since difference processing reflected light images do not include any foreign matter images, a quality judgment device does not receive any influence from the foreign matter that is adhered to the protective glass and can conduct an excellent evaluation of the welding quality.Type: GrantFiled: August 6, 2008Date of Patent: January 21, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Kawazoe, Masahiro Nishio, Tsunaji Kitayama, Yasuhiro Ishii
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Publication number: 20130059522Abstract: An air conditioner for a vehicle includes an electric heater arranged downstream of a heat exchanger in an air flow direction, a defroster air outlet, a driver-foot air outlet through which air is blown toward a foot area of a driver, a knee air outlet through which air is blown toward a knee area of the driver, a door device which controls an air amount blown into a vehicle compartment by opening or closing the air outlets. When an immediate heating operation is performed by an operation of an immediate heating switch, the door device opens the defroster air outlet and at least one of the driver-foot air outlet and the knee air outlet, and the electric heater heats a total amount of air that is to be blown through the at least one of the driver-foot air outlet and the knee air outlet.Type: ApplicationFiled: August 22, 2012Publication date: March 7, 2013Applicant: Denso CorporationInventors: Koji Ota, Manabu Maeda, Yuji Kawazoe, Shinji Iwama
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Patent number: 8289506Abstract: A first image formation point for a workpiece is provided between a camera and the workpiece. An image of the workpiece is at the first image formation point, and picked up by the camera. Meanwhile, an image for a protection glass is not formed at the first image formation point, and is instead diffused and then picked up by the camera. For this reason, an image caused by dirt on the protection glass is diffused. As a result, in the image picked up by the camera, images due to dirt become few and images due to the workpiece become relatively many. Therefore, the accuracy of an evaluation on the quality of the workpiece can be improved.Type: GrantFiled: July 29, 2008Date of Patent: October 16, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Kawazoe, Masahiro Nishio, Akihiro Toyoda
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Publication number: 20120102974Abstract: In a vehicle air conditioner, a heating heat exchanger is disposed in an air passage of a casing to heat air to be blown toward a vehicle compartment by performing heat exchange between air and a heating fluid, a heat radiation portion is disposed to radiate heat to the heating fluid before being heat-exchanged in the heating heat exchanger, a heat absorption portion is disposed to absorb heat from the heating fluid after being heat-exchanged in the heating heat exchanger, and a Peltier element is disposed between the heat radiation portion and the heat absorption portion to pump heat from the heat absorption portion to the heat radiation portion. Furthermore, the heat radiation portion is disposed in the air passage of the casing, in which the heating heat exchanger is disposed. Thus, heat discharged from the Peltier element can be effectively used.Type: ApplicationFiled: October 31, 2011Publication date: May 3, 2012Applicant: DENSO CORPORATIONInventors: Yuji Kawazoe, Koji Ota, Manabu Maeda
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Publication number: 20110026016Abstract: A first image formation point for a workpiece is provided between a camera and the workpiece. An image of the workpiece is formed at the first image formation point, and picked up by the camera. Meanwhile, an image for a protection glass is not formed at the first image formation point, and is instead diffused and then picked up by the camera. For this reason, an image caused by dirt on the protection glass is diffused. As a result, in the image picked up by the camera, images due to dirt become few and images due to the workpiece become relatively many. Therefore, the accuracy of an evaluation on the quality of the workpiece can be improved.Type: ApplicationFiled: July 29, 2008Publication date: February 3, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Kawazoe, Masahiro Nishio, Akihiro Toyoda
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Publication number: 20090272725Abstract: A difference processing circuit receives input of welding images taken by a CCD camera in real time and then differentiates power monitoring images recorded in a memory from welding images to obtain difference processing reflected light images. Due to the difference processing performed by a difference processing circuit, foreign matter images included in welding images and power monitoring images are eliminated and the difference processing reflected light images that are obtained do not include any foreign matter images. A quality judgment device uses the difference processing reflected light images obtained by a difference processing circuit and conducts a quality judgment. As described above, since difference processing reflected light images do not include any foreign matter images, a quality judgment device does not receive any influence from the foreign matter that is adhered to the protective glass and can conduct an excellent evaluation of the welding quality.Type: ApplicationFiled: August 6, 2008Publication date: November 5, 2009Inventors: Yuji Kawazoe, Masahiro Nishio, Tsunaji Kitayama, Yasuhiro Ishii