Patents by Inventor Kazuaki Arai

Kazuaki Arai 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).

  • Publication number: 20210116095
    Abstract: A light-emitting device (20) includes a light-emitting region (140). The light-emitting region (140) includes a plurality of light-emitting units (142) and a plurality of light-transmitting units (144), and each of the plurality of light-transmitting units (144) is located between the light-emitting elements (142) adjacent to each other. The light-emitting region (140) is located on a side of one surface (outer surface (202)) of a base material (200) having light-transmitting properties and has an inclination with respect to the one surface (outer surface (202)). The base material (200) is rear glass of an automobile. The base material (200) partitions a region outside a mobile object (region (RG1)) from a region inside the mobile object (region (RG2)).
    Type: Application
    Filed: June 28, 2018
    Publication date: April 22, 2021
    Inventor: Kazuaki ARAI
  • Patent number: 10904963
    Abstract: An optical device includes a light emitting device and a sensor device (light receiving element). The light emitting device includes a substrate, a plurality of light emitting elements, and a plurality of light transmission portions. The substrate has a first surface and a second surface. The second surface is opposite to the first surface. The plurality of light emitting elements is positioned at the first surface side of the substrate. Each of the plurality of light transmission portions is positioned between adjacent light emitting elements. The light emitting device is light-transmissive by the plurality of light transmission portions. Light from the plurality of light emitting elements is mainly output from the second surface of the substrate. An amount of light emitted from each of the light emitting elements and leaked to the outside of the first surface of the substrate is reduced.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: January 26, 2021
    Assignee: PIONEER CORPORATION
    Inventors: Kazuaki Arai, Shinichi Ishizuka
  • Publication number: 20200236751
    Abstract: An optical device includes a light-emitting device and a sensor device (a light receiving element). The light-emitting device includes a substrate, a plurality of light-emitting elements, and a plurality of light-transmitting units. The substrate has a first surface and a second surface. The second surface is opposite the first surface. The plurality of light-emitting elements are located on the first surface side of the substrate. Each of the plurality of light-transmitting units is located between light-emitting elements adjacent to each other. The light-emitting device has light-transmitting properties by the plurality of light-transmitting units. Light from the plurality of light-emitting elements is emitted mainly from the second surface of the substrate. The amount of light leakage from light emitted from each light-emitting element and leaked toward the outside of the first surface of the substrate is suppressed.
    Type: Application
    Filed: January 30, 2018
    Publication date: July 23, 2020
    Inventor: Kazuaki ARAI
  • Publication number: 20190394842
    Abstract: An optical device includes a light emitting device and a sensor device (light receiving element). The light emitting device includes a substrate, a plurality of light emitting elements, and a plurality of light transmission portions. The substrate has a first surface and a second surface. The second surface is opposite to the first surface. The plurality of light emitting elements is positioned at the first surface side of the substrate. Each of the plurality of light transmission portions is positioned between adjacent light emitting elements. The light emitting device is light-transmissive by the plurality of light transmission portions. Light from the plurality of light emitting elements is mainly output from the second surface of the substrate. An amount of light emitted from each of the light emitting elements and leaked to the outside of the first surface of the substrate is reduced.
    Type: Application
    Filed: January 17, 2018
    Publication date: December 26, 2019
    Inventors: Kazuaki ARAI, Shinichi ISHIZUKA
  • Patent number: 7650090
    Abstract: An image forming apparatus containing a fusing device, a commercial power source providing power to the fusing device, a triac, a thermistor detecting a temperature of the fusing device, a fusion control unit controlling the fusing device based on a detection result of the thermistor, and a cathode terminal outputting a control current and an anode terminal receiving the control current to control the power supplied to the heating body from the commercial power source and the triac. The fusion control unit of the image forming apparatus contains a control current output terminal outputting the control current to the anode terminal, a control current input terminal receiving the control current from the cathode terminal, and a fusion temperature control unit controlling the control current received by the control current input terminal and the control current output by the control current output terminal.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: January 19, 2010
    Assignee: Oki Data Corporation
    Inventors: Motonobu Hatakeyama, Kazuaki Arai
  • Publication number: 20080124100
    Abstract: An image forming apparatus containing a fusing device, a commercial power source providing power to the fusing device, a triac, a thermistor detecting a temperature of the fusing device, a fusion control unit controlling the fusing device based on a detection result of the thermistor, and a cathode terminal outputting a control current and an anode terminal receiving the control current to control the power supplied to the heating body from the commercial power source and the triac. The fusion control unit of the image forming apparatus contains a control current output terminal outputting the control current to the anode terminal, a control current input terminal receiving the control current from the cathode terminal, and a fusion temperature control unit controlling the control current received by the control current input terminal and the control current output by the control current output terminal.
    Type: Application
    Filed: June 26, 2007
    Publication date: May 29, 2008
    Applicant: OKI DATA CORPORATION
    Inventors: Motonobu HATAKEYAMA, Kazuaki ARAI
  • Patent number: 7171132
    Abstract: An image-forming apparatus includes an image-forming section, a detection section, and a controller. The image-forming section has an image-bearing body on which an electrostatic latent image is formed and a developing unit that develops the electrostatic latent image. The detection section generates an output indicative of a remaining amount of toner in the developing unit. The controller drives the drive section to cause the image-forming section to move from one position to another, and determines a position of the image-forming section based on the output of the detection section. The detection section is mounted to a toner cartridge within the developing unit. When the image-forming section is moved from one position to another, the detection section receives light reflected by a high-reflectivity area and a low-reflectivity area, thereby detecting the position of the image-forming section.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: January 30, 2007
    Assignee: Oki Data Corporation
    Inventors: Makoto Yabuki, Hiroyuki Inoue, Yasunaga Yamaguchi, Kazuaki Arai
  • Publication number: 20040264984
    Abstract: An image-forming apparatus includes an image-forming section, a detection section, and a controller. The image-forming section has an image-bearing body on which an electrostatic latent image is formed and a developing unit that develops the electrostatic latent image. The detection section generates an output indicative of a remaining amount of toner in the developing unit. The controller drives the drive section to cause the image-forming section to move from one position to another, and determines a position of the image-forming section based on the output of the detection section. The detection section is mounted to a toner cartridge within the developing unit. When the image-forming section is moved from one position to another, the detection section receives light reflected by a high-reflectivity area and a low-reflectivity area, thereby detecting the position of the image-forming section.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 30, 2004
    Applicant: Oki Data Corporation
    Inventors: Makoto Yabuki, Hiroyuki Inoue, Yasunaga Yamaguchi, Kazuaki Arai
  • Publication number: 20040233563
    Abstract: A recording apparatus including two hard disk drives for preventing degradation of the signal which can be manufactured at low cost. The recording apparatus includes: two hard disk drives; a mainboard including a control section for controlling read/write of data from/to the hard disk drives; an interface connector for outputting and inputting data, which is written and read to/from the hard disk drives, to/from an exterior; and board side connectors provided on both sides of the mainboard at opposite end of the mainboard from the interface connector, the board side connectors including mating faces pointing opposite direction from the mainboard. The two hard disk drives are provided on both sides of the mainboard substantially parallel with the mainboard, and include interfaces of the hard disk drives at the end nearest to the board side connectors, and the recording apparatus further includes drive connecting members for connecting interfaces of the hard disk drives with the board side connectors.
    Type: Application
    Filed: November 24, 2003
    Publication date: November 25, 2004
    Inventors: Hideyuki Wada, Kazuaki Arai, Kenichi Itoh
  • Patent number: 6701096
    Abstract: A printer uses a consumable component having an internal fuse that is blown when the consumable component is installed. In one aspect of the invention, the consumable component includes a resistor connected in series with the fuse. Before the fuse is blown, the resistance value of the resistor is checked to make sure that the correct type of consumable component has been installed. In another aspect of the invention, if the fuse fails to blow on the first attempt, this is recorded in a memory and a second attempt is made later, the consumable component being used in the meantime. In still another aspect of the invention, the consumable component includes a resistor or thermistor connected in parallel with the fuse, enabling a consumable component with a blown fuse to be distinguished from a consumable component that is not installed.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: March 2, 2004
    Assignee: Oki Data Corporation
    Inventors: Kazuaki Arai, Koichi Negishi, Takao Uchida
  • Publication number: 20020164169
    Abstract: A printer uses a consumable component having an internal fuse that is blown when the consumable component is installed. In one aspect of the invention, the consumable component includes a resistor connected in series with the fuse. Before the fuse is blown, the resistance value of the resistor is checked to make sure that the correct type of consumable component has been installed. In another aspect of the invention, if the fuse fails to blow on the first attempt, this is recorded in a memory and a second attempt is made later, the consumable component being used in the meantime. In still another aspect of the invention, the consumable component includes a resistor or thermistor connected in parallel with the fuse, enabling a consumable component with a blown fuse to be distinguished from a consumable component that is not installed.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 7, 2002
    Applicant: Oki Data Corporation
    Inventors: Kazuaki Arai, Koichi Negishi, Takao Uchida