Patents by Inventor Akiya Kume

Akiya Kume 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: 20200295696
    Abstract: A rotary electric machine control device that performs drive control on an AC rotary electric machine using an inverter that converts power between DC power and AC power through pulse width modulation based on a carrier frequency, the rotary electric machine control device including: an electronic control unit that is configured to vary the carrier frequency such that the carrier frequency becomes higher as a rotational speed of the rotary electric machine becomes higher so that carrier sideband frequencies, which are frequencies of sideband waves that appear on higher and lower sides of a center frequency that is set in accordance with the carrier frequency, are not included in a frequency band prescribed in advance.
    Type: Application
    Filed: March 27, 2018
    Publication date: September 17, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Masayuki TAKENAKA, Takuro IWASE, Akiya KUME, Shoji NAGATA, Yasuyuki SATO
  • Patent number: 8258505
    Abstract: Provided is a manufacturing method for an organic electroluminescence display apparatus in which processing uniformity is kept during partial removal processing of an electrode layer or an organic compound layer. The organic electroluminescence display apparatus includes: a substrate; and a light-emitting device including an organic compound layer including an emission layer sandwiched between electrodes formed on the substrate, in which: two or more of the light-emitting devices are provided, and the light-emitting devices are stacked in a direction perpendicular to the substrate; at least one of the electrodes and the organic compound layers in the two or more light-emitting devices includes openings; and the openings are positioned so as not to overlap with one another in the direction perpendicular to the substrate.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: September 4, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiya Kume, Kazuya Igarashi, Kohei Nagayama, Nobuhiko Sato
  • Publication number: 20110186819
    Abstract: Provided is a manufacturing method for an organic electroluminescence display apparatus in which processing uniformity is kept during partial removal processing of an electrode layer or an organic compound layer. The organic electroluminescence display apparatus includes: a substrate; and a light-emitting device including an organic compound layer including an emission layer sandwiched between electrodes formed on the substrate, in which: two or more of the light-emitting devices are provided, and the light-emitting devices are stacked in a direction perpendicular to the substrate; at least one of the electrodes and the organic compound layers in the two or more light-emitting devices includes openings; and the openings are positioned so as not to overlap with one another in the direction perpendicular to the substrate.
    Type: Application
    Filed: June 26, 2009
    Publication date: August 4, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akiya Kume, Kazuya Igarashi, Kohei Nagayama, Nobuhiko Sato
  • Patent number: 6023597
    Abstract: A cellular conductive roller has closed cells and open cells with conductive powder filling the open cells of the cellular conductive roller. A method for making a cellular conductive roller includes filling the open cells in the cellular conductive roller with conductive powder, adhering a tacky sheet to the surface of said cellular conductive roller; then peeling said tacky sheet off the surface of said cellular conductive roller. Also disclosed is an electrophotographic device using the cellular conductive roller and a process cartridge into which the cellular conductive roller is integrated.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: February 8, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Mayuzumi, Yoshiaki Nishimura, Jun Murata, Nobutoshi Hayashi, Akiya Kume, Yukinori Nagata
  • Patent number: 5824408
    Abstract: A white electroconductive coating composition includes a white pigment having a whiteness of at least 60, a white conductive material having a whiteness of at least 50 and a volume resistivity of at most 1.times.10.sup.10 ohm.cm. The coating composition is suitable to provide a a coating film showing a whiteness of at least 60 and a surface resistivity of at most 1.times.10.sup.11 ohm/cm.sup.2. Such a white conductive layer may be formed on a back side of a surface insulating film of a transfer material carrying member of an electrophotographic image forming apparatus to provide a reference white pattern for detecting a density of a toner image formed on the carrying member, thereby allowing controlled image formation based on the detected density data.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: October 20, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiya Kume, Yoshiaki Nishimura, Jun Murata, Nobutoshi Hayashi, Yukinori Nagata, Hiroshi Mayuzumi
  • Patent number: 5819142
    Abstract: The present invention pertains to a charging member which is energized to charge a chargeable member by contact-electrification and which comprises a conductive elastic layer having a surface layer containing a polymer having a main chain containing a structural unit of the following formula:--O--(CH.sub.2).sub.n --O--CO--wherein n is an integer of from 4 to 10.With stable charging properties, the charging member of the present invention has relatively uniform surface resistance, little dependency on the environmental conditions, and decreased contamination of photosensitive bodies and the like.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: October 6, 1998
    Assignee: Canon Kaubshiki Kaisha
    Inventors: Jun Murata, Yoshiaki Nishimura, Akiya Kume, Hiroshi Mayuzumi