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).

  • Patent number: 11560039
    Abstract: 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: Grant
    Filed: June 10, 2020
    Date of Patent: January 24, 2023
    Assignee: DENSO CORPORATION
    Inventors: Mitsuhiro Nakazawa, Hitoshi Nakahata, Tetsuya Takechi, Yoshihiko Uesugi, Yuji Kawazoe
  • Publication number: 20200298665
    Abstract: 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: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Mitsuhiro NAKAZAWA, Hitoshi NAKAHATA, Tetsuya TAKECHI, Yoshihiko UESUGI, Yuji KAWAZOE
  • Publication number: 20200292218
    Abstract: 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: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Inventor: Yuji KAWAZOE
  • Patent number: 10611230
    Abstract: 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: Grant
    Filed: July 13, 2018
    Date of Patent: April 7, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hideaki Yokota, Hirokazu Yamadaki, Yuji Kawazoe, Mizuaki Kitajima, Takuya Abiko
  • Publication number: 20190023116
    Abstract: 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: Application
    Filed: July 13, 2018
    Publication date: January 24, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hideaki YOKOTA, Hirokazu YAMADAKI, Yuji KAWAZOE, Mizuaki KITAJIMA, Takuya ABIKO
  • Patent number: 9290078
    Abstract: 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: Grant
    Filed: August 22, 2012
    Date of Patent: March 22, 2016
    Assignee: DENSO CORPORATION
    Inventors: Koji Ota, Manabu Maeda, Yuji Kawazoe, Shinji Iwama
  • Patent number: 8633419
    Abstract: 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: Grant
    Filed: August 6, 2008
    Date of Patent: January 21, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Kawazoe, Masahiro Nishio, Tsunaji Kitayama, Yasuhiro Ishii
  • Publication number: 20130059522
    Abstract: 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: Application
    Filed: August 22, 2012
    Publication date: March 7, 2013
    Applicant: Denso Corporation
    Inventors: Koji Ota, Manabu Maeda, Yuji Kawazoe, Shinji Iwama
  • Patent number: 8289506
    Abstract: 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: Grant
    Filed: July 29, 2008
    Date of Patent: October 16, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Kawazoe, Masahiro Nishio, Akihiro Toyoda
  • Publication number: 20120102974
    Abstract: 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: Application
    Filed: October 31, 2011
    Publication date: May 3, 2012
    Applicant: DENSO CORPORATION
    Inventors: Yuji Kawazoe, Koji Ota, Manabu Maeda
  • Publication number: 20110026016
    Abstract: 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: Application
    Filed: July 29, 2008
    Publication date: February 3, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Kawazoe, Masahiro Nishio, Akihiro Toyoda
  • Publication number: 20090272725
    Abstract: 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: Application
    Filed: August 6, 2008
    Publication date: November 5, 2009
    Inventors: Yuji Kawazoe, Masahiro Nishio, Tsunaji Kitayama, Yasuhiro Ishii