Patents by Inventor Tomoyuki Miyagaki

Tomoyuki Miyagaki 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: 9064471
    Abstract: A display device for a vehicle includes a liquid crystal panel, a light source, and a controller. The liquid crystal panel includes a particular display pixel and a normal display pixel. The controller controls the ratio of the gradation value of the normal display pixel to a set gradation value of the normal display pixel as a gradation ratio of the normal display pixel. At the same time, it controls the ratio of the gradation value of the particular display pixel to a set gradation value of the particular display pixel as a gradation ratio of the particular display pixel. Further, the controller sets first and second modes as a control mode, the first mode in which the light source emits light, and the second mode in which the light source emits light with brightness lower than in the first mode. In the first mode, the controller sets the gradation ratio of the normal display pixel and the gradation ratio of the particular display pixel at a particular time to a maximum ratio.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 23, 2015
    Assignee: DENSO CORPORATION
    Inventors: Yukihide Shibata, Miki Kato, Makoto Inomata, Tomoyuki Miyagaki
  • Patent number: 8743153
    Abstract: A display device for a vehicle includes a liquid crystal panel (10), a light source (40), and a controlling means (50). The liquid crystal panel includes a particular display pixel (72) and a normal display pixel (62). The controlling means controls the ratio of the gradation value of the normal display pixel to a set gradation value of the normal display pixel as a gradation ratio of the normal display pixel. At the same time, it controls the ratio of the gradation value of the particular display pixel to a set gradation value of the particular display pixel as a gradation ratio of the particular display pixel. Further, the controlling means sets first and second modes as a control mode, the first mode in which the light source emits light, and the second mode in which the light source emits light with brightness lower than in the first mode.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 3, 2014
    Assignee: Denso Corporation
    Inventors: Yukihide Shibata, Miki Kato, Makoto Inomata, Tomoyuki Miyagaki
  • Publication number: 20140125709
    Abstract: A display device for a vehicle includes a liquid crystal panel, a light source, and a controller. The liquid crystal panel includes a particular display pixel and a normal display pixel. The controller controls the ratio of the gradation value of the normal display pixel to a set gradation value of the normal display pixel as a gradation ratio of the normal display pixel. At the same time, it controls the ratio of the gradation value of the particular display pixel to a set gradation value of the particular display pixel as a gradation ratio of the particular display pixel. Further, the controller sets first and second modes as a control mode, the first mode in which the light source emits light, and the second mode in which the light source emits light with brightness lower than in the first mode. In the first mode, the controller sets the gradation ratio of the normal display pixel and the gradation ratio of the particular display pixel at a particular time to a maximum ratio.
    Type: Application
    Filed: December 13, 2013
    Publication date: May 8, 2014
    Applicant: DENSO CORPORATION
    Inventors: Yukihide SHIBATA, Miki Kato, Makoto Inomata, Tomoyuki Miyagaki
  • Patent number: 8558683
    Abstract: A display apparatus for a vehicle includes: a display element; an image generation element for generating a vehicle image, an analog image and an indication image; and a display controller. The analog image includes an indication position and multiple indexes arranged on an upside and downside of the indication position. The indication image shows the current vehicle speed at the indication position. Each index shows a corresponding vehicle speed. Display dimensions of each index are inverse proportion to the corresponding vehicle speed, and a distance between the indication position and each index is proportion to a difference between the current vehicle speed and the corresponding vehicle speed. The display controller controls the display element to display the indication image at the indication position of the analog image.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: October 15, 2013
    Assignee: Denso Corporation
    Inventors: Ryoichi Nishikawa, Yasuhisa Yamashita, Hiroki Matsui, Takaaki Muramatsu, Kenichirou Karikomi, Tomoyuki Miyagaki, Hitoshi Sugiyama
  • Patent number: 8274459
    Abstract: A display apparatus for use in a vehicle has a liquid crystal display panel, and the panel includes a first pixel area for displaying a meter image that represents vehicle condition values, and a second pixel area for displaying an outside image that calls attention of occupants as a warning image. Further, an input unit of the apparatus receives inputs of adjustment value from occupants of the vehicle for adjusting brightness of the meter image and the outside image. A main control unit and a drawing unit of the apparatus cooperatively serve as a controller of the apparatus by changing gradation ratio of the first and second pixel areas so that the gradation ratio of the second pixel area becomes greater than the gradation ratio of the first pixel area according to the input of the adjustment value.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: September 25, 2012
    Assignee: Denso Corporation
    Inventors: Miki Kato, Yukihide Shibata, Tomoyuki Miyagaki
  • Publication number: 20100253496
    Abstract: A display apparatus for a vehicle includes: a display element; an image generation element for generating a vehicle image, an analog image and an indication image; and a display controller. The analog image includes an indication position and multiple indexes arranged on an upside and downside of the indication position. The indication image shows the current vehicle speed at the indication position. Each index shows a corresponding vehicle speed. Display dimensions of each index are inverse proportion to the corresponding vehicle speed, and a distance between the indication position and each index is proportion to a difference between the current vehicle speed and the corresponding vehicle speed. The display controller controls the display element to display the indication image at the indication position of the analog image.
    Type: Application
    Filed: March 24, 2010
    Publication date: October 7, 2010
    Applicant: DENSO CORPORATION
    Inventors: Ryoichi Nishikawa, Yasuhisa Yamashita, Hiroki Matsui, Takaaki Muramatsu, Kenichirou Karikomi, Tomoyuki Miyagaki, Hitoshi Sugiyama
  • Publication number: 20100103204
    Abstract: A display device for a vehicle includes a liquid crystal panel (10), a light source (40), and a controlling means (50). The liquid crystal panel includes a particular display pixel (72) and a normal display pixel (62). The controlling means controls the ratio of the gradation value of the normal display pixel to a set gradation value of the normal display pixel as a gradation ratio of the normal display pixel. At the same time, it controls the ratio of the gradation value of the particular display pixel to a set gradation value of the particular display pixel as a gradation ratio of the particular display pixel. Further, the controlling means sets first and second modes as a control mode, the first mode in which the light source emits light, and the second mode in which the light source emits light with brightness lower than in the first mode.
    Type: Application
    Filed: November 21, 2007
    Publication date: April 29, 2010
    Applicant: DENSO CORPORATION
    Inventors: Yukihide Shibata, Miki Kato, Makoto Inomata, Tomoyuki Miyagaki
  • Publication number: 20080252579
    Abstract: A display apparatus for use in a vehicle has a liquid crystal display panel, and the panel includes a first pixel area for displaying a meter image that represents vehicle condition values, and a second pixel area for displaying an outside image that calls attention of occupants as a warning image. Further, an input unit of the apparatus receives inputs of adjustment value from occupants of the vehicle for adjusting brightness of the meter image and the outside image. A main control unit and a drawing unit of the apparatus cooperatively serve as a controller of the apparatus by changing gradation ratio of the first and second pixel areas so that the gradation ratio of the second pixel area becomes greater than the gradation ratio of the first pixel area according to the input of the adjustment value.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 16, 2008
    Applicant: DENSO CORPORATION
    Inventors: Miki Kato, Yukihide Shibata, Tomoyuki Miyagaki
  • Publication number: 20060232986
    Abstract: A display device for a vehicle has a first display section for displaying measuring information, a second display section for displaying messages, a switching means for connecting the first display section and the second display section to a power source, and a control means for controlling displaying operations of the first display section and the second display section. When the switching means is turned on, the control means supplies an electric power to the second display section prior to the first display section.
    Type: Application
    Filed: April 14, 2006
    Publication date: October 19, 2006
    Applicants: Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoyuki Miyagaki, Yutaka Imai