Patents by Inventor Akira Mikita

Akira Mikita 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).

  • Variable compression ratio device for internal combustion engine
    Patent number: 9574495
    Abstract: A variable compression ratio device for an internal combustion engine includes: a connecting rod, having a small end and a large end, wherein a support hole formed at the small end is pivotally supported by a support shaft of a piston that reciprocates in a cylinder, and a support hole formed at the large end is pivotally supported by a support shaft of a crankshaft; an eccentric sleeve that is rotatably installed between the support hole of the small end or the support hole of the large end and the support shaft, and displaces a center axis of the support hole of the small end or a center axis of the support hole of the large end with respect to a center axis the support shaft; and an actuator that drives and rotates the eccentric sleeve.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: February 21, 2017
    Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki Kaisha
    Inventors: Seiji Matsuda, Hirofumi Higashi, Akira Mikita
  • VARIABLE COMPRESSION RATIO DEVICE FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20150176483
    Abstract: A variable compression ratio device for an internal combustion engine includes: a connecting rod, having a small end and a large end, wherein a support hole formed at the small end is pivotally supported by a support shaft of a piston that reciprocates in a cylinder, and a support hole formed at the large end is pivotally supported by a support shaft of a crankshaft; an eccentric sleeve that is rotatably installed between the support hole of the small end or the support hole of the large end and the support shaft, and displaces a center axis of the support hole of the small end or a center axis of the support hole of the large end with respect to a center axis the support shaft; and an actuator that drives and rotates the eccentric sleeve.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 25, 2015
    Applicants: MITSUBISHI JIDOSHA ENGINEERING KABUSHIKI KAISHA, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Seiji MATSUDA, Hirofumi HIGASHI, Akira MIKITA
  • Aperture grille having parallel slits with larger cross-sectional area grids at a peripheral portion
    Patent number: 6320304
    Abstract: An aperture grille, in which tensile strength applied on the aperture grille after it is mounted on a frame body is made uniform to eliminate rupture of grid and variations in elongation caused by heat. The width of each slit on a display surface side and a rear side of the aperture grille is constant in longitudinal direction, and the width of each slit on the display surface side is designed smaller on peripheral portion than at the central portion so that cross-sectional area of each grid of the aperture grille is made larger on the peripheral portion than at the central portion.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: November 20, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Akira Mikita, Yasuhiko Ishii