Patents by Inventor Tadaaki Ishimaru

Tadaaki Ishimaru 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: 11117468
    Abstract: A display device for a vehicle includes: a dial plate having an indicator portion corresponding to vehicle information on a viewing side; an image display panel disposed on a back side of the dial plate opposite to the viewing side to luminescently display an image; and a light transmissive display plate that includes a reflective portion disposed on the viewing side of the dial plate to reflect a light from a light source to the viewing side. A region of the dial plate, which faces the image display panel, is set to have a light transmission property to transmit the image of the image display panel through the region of the dial plate.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: September 14, 2021
    Assignee: DENSO CORPORATION
    Inventors: Katsumi Fujita, Kouzou Ono, Shota Nojiri, Takuo Yamamoto, Shizuo Nagata, Yuuki Uekubo, Masashi Nakamura, Kouta Fukutomi, Tadaaki Ishimaru
  • Publication number: 20190248240
    Abstract: A display device for a vehicle includes: a dial plate having an indicator portion corresponding to vehicle information on a viewing side; an image display panel disposed on a back side of the dial plate opposite to the viewing side to luminescently display an image; and a light transmissive display plate that includes a reflective portion disposed on the viewing side of the dial plate to reflect a light from a light source to the viewing side. A region of the dial plate, which faces the image display panel, is set to have a light transmission property to transmit the image of the image display panel through the region of the dial plate.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Katsumi FUJITA, Kouzou ONO, Shota NOJIRI, Takuo YAMAMOTO, Shizuo NAGATA, Yuuki UEKUBO, Masashi NAKAMURA, Kouta FUKUTOMI, Tadaaki ISHIMARU
  • Patent number: 9714750
    Abstract: A vehicular display apparatus includes: first illumination portions that illuminate first display areas from behind by luminescence of a plurality of first light sources; first cover portions that are placed behind the first display areas and internally expose the first light sources; a second illumination portion that illuminates a second display area from behind by luminescence of a plurality of second light sources; and a second cover portion that is placed behind the second display area and has an interior partitioned from the interiors of the adjoining first cover portions while internally exposing the second light sources. The first cover portions externally form an air passage for an air flow. The second cover portion has an air hole opened to communicate the interior of the second cover portion with the air passage external to the first cover portion.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: July 25, 2017
    Assignee: DENSO CORPORATION
    Inventors: Tadaaki Ishimaru, Takayuki Hiromitsu
  • Publication number: 20150184824
    Abstract: A vehicular display apparatus includes: first illumination portions that illuminate first display areas from behind by luminescence of a plurality of first light sources; first cover portions that are placed behind the first display areas and internally expose the first light sources; a second illumination portion that illuminates a second display area from behind by luminescence of a plurality of second light sources; and a second cover portion that is placed behind the second display area and has an interior partitioned from the interiors of the adjoining first cover portions while internally exposing the second light sources. The first cover portions externally form an air passage for an air flow. The second cover portion has an air hole opened to communicate the interior of the second cover portion with the air passage external to the first cover portion.
    Type: Application
    Filed: May 16, 2013
    Publication date: July 2, 2015
    Inventors: Tadaaki Ishimaru, Takayuki Hiromitsu
  • Patent number: 6883393
    Abstract: In a vehicular combination meter, dials for a speedometer and tachometer and colored segments for a shift indicator are provided on a single gauge board made of a flexible synthetic resin. The gauge board is joined to a light distribution board and installed on a rear side of a face plate in a housing.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: April 26, 2005
    Assignee: Denso Corporation
    Inventor: Tadaaki Ishimaru
  • Publication number: 20030056608
    Abstract: In a vehicular combination meter, dials for a speedometer and tachometer and colored segments for a shift indicator are provided on a single gauge board made of a flexible synthetic resin. The gauge board is joined to a light distribution board and installed on a rear side of a face plate in a housing.
    Type: Application
    Filed: September 13, 2002
    Publication date: March 27, 2003
    Inventor: Tadaaki Ishimaru
  • Patent number: 6120158
    Abstract: An indicator for use in a vehicle instrument panel has a light conductive pointer illuminated by a light emitting diode or LED. In order to provide an increased illuminating surface of the pointer, a slit is formed on a cap to extend from the outer periphery of the cap to a portion above a center of rotation of the pointer driven by a driving shaft. A fixture is connected to the driving shaft and holds a light receiving portion of the pointer at the portion above the center of rotation and the LED in the optical alignment with the pointer at a portion off an axis of the center of rotation. A balancing weight is disposed at a portion opposite the LED with respect to the driving shaft in order to keep balance of the indicator.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: September 19, 2000
    Assignee: Nippondenso Corporation
    Inventors: Tadaaki Ishimaru, Teruaki Araki, Tsutomu Yoshikawa
  • Patent number: 5839809
    Abstract: An indicator for use in a vehicle instrument panel has a light conductive pointer illuminated by a light emitting diode or LED. In order to provide an increased illuminating surface of the pointer, a slit is formed on a cap to extend from the outer periphery of the cap to a portion above a center of rotation of the pointer driven by a driving shaft. A fixture is connected to the driving shaft and holds a light receiving portion of the pointer at the portion above the center of rotation and the LED in the optical alignment with the pointer at a portion off an axis of the center of rotation. A balancing weight is disposed at a portion opposite the LED with respect to the driving shaft in order to keep balance of the indicator.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: November 24, 1998
    Assignee: Nippondenso Co., Ltd.
    Inventors: Tadaaki Ishimaru, Teruaki Araki, Tsutomu Yoshikawa
  • Patent number: 5678913
    Abstract: An indicator for use in a vehicle instrument panel has a light conductive pointer illuminated by a light emitting diode or LED. In order to provide an increased illuminating surface of the pointer, a slit is formed on a cap to extend from the outer periphery of the cap to a portion above a center of rotation of the pointer driven by a driving shaft. A fixture is connected to the driving shaft and holds a light receiving portion of the pointer at the portion above the center of rotation and the LED in the optical alignment with the pointer at a portion off an axis of the center of rotation. A balancing weight is disposed at a portion opposite the LED with respect to the driving shaft in order to keep balance of the indicator.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: October 21, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Tadaaki Ishimaru, Teruaki Araki, Tsutomu Yoshikawa