Patents by Inventor Kazuo Shikama

Kazuo Shikama 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: 20180039158
    Abstract: To enable achievement of a reduction in the thickness in a blade driving device that includes a driving member, and to enable a reduction in size of an installation area in a blade driving device that includes a driving member. The blade driving device 1 comprises a base member 2 that has an opening 2A, one or more blade members 3 that operate so as to advance into the opening 2A or withdraw from the opening 2A, and a driving member 4 that is supported on the base member 2 and that moves within a plane that is perpendicular to an optical axis that passes through the opening 2A, for driving the blade member, wherein the driving member 4 is disposed at a position that overlaps the blade member on the periphery of the opening 2A.
    Type: Application
    Filed: February 26, 2016
    Publication date: February 8, 2018
    Applicant: Nidec Copal Corporation
    Inventors: Kazuo SHIKAMA, Longji BAI, Nobuaki WATANABE
  • Publication number: 20180039159
    Abstract: To enable continuous operational control of the blade member with high resolution and good accuracy, even when achieving miniaturization and thickness reduction in a blade driving device, through enabling smooth movement of a movable member in a blade driving device. A blade driving device 1 comprises: a base member 2 that has an opening 2A; one or a plurality of blade members 3 that operate so as to advance into the opening 2A or withdraw from the opening 2A; a driving member 4 that moves within a plane that is perpendicular to the optical axis that passes through the opening 2A, to drive the blade member 3; and supporting members 7 that are provided between the base member 2 and the driving member 4, so as to provide sliding support or elastic support of the driving member 4 in a state that is separated from the base member 2.
    Type: Application
    Filed: February 26, 2016
    Publication date: February 8, 2018
    Applicant: Nidec Copal Corporation
    Inventors: Kazuo SHIKAMA, Longji BAI, Nobuaki WATANABE
  • Publication number: 20150331220
    Abstract: A lens driving device includes: a lens frame, a base member, and a supporting portion that supports the lens frame so as to be able to move, relative to the base member, in the direction of the optical axis and in the direction that is perpendicular to the optical axis. The lens driving device also includes a driving unit that drives respectively the lens frame in the direction of the optical axis and in the direction perpendicular to the optical axis. The supporting portion includes a path for supplying power to the driving unit. The base member includes a plurality of connecting terminals wherein the external connecting faces thereof are exposed. The paths for supplying power to the driving unit are connected to the connecting terminals.
    Type: Application
    Filed: January 29, 2015
    Publication date: November 19, 2015
    Applicant: NIDEC COPAL CORPORATION
    Inventors: Kazuo SHIKAMA, Hiroyuki WATANABE
  • Patent number: 8903230
    Abstract: A tilt correction unit includes: an inner frame, inside which an optical unit is held; an outer frame surrounding the inner frame, with a gap formed between the inner frame and the outer frame around an entire perimeter of the inner frame; an elastic part which is disposed between the outer frame and the inner frame and elastically supports the inner frame inside the outer frame; a rotational movement support part that connects a part of an outer peripheral surface of the inner frame to a part of an inner peripheral surface of the outer frame; and a drive unit that comprises a magnet and a coil disposed opposite each other with a gap therebetween, wherein the inner frame is driven by the drive unit and rotates about the rotational support part, in a plane perpendicular to the optical axis of the optical unit.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: December 2, 2014
    Assignee: Nidec Copal Corporation
    Inventors: Kazuo Shikama, Yuuhei Kobayashi, Yohsuke Ikeda, Nobuaki Watanabe, Kiyoshi Toma
  • Patent number: 8730595
    Abstract: An optical image stabilizer includes a base member, a movable member that is disposed at the base member and moves along a plane orthogonal to an optical axis, a movable-member driving portion that is disposed at the base member and the movable member, and moves the movable member in a direction orthogonal to the optical axis, and a regulator that regulates a movement of the movable member along the plane orthogonal to the optical axis. The regulator regulates the movement of the movable member with two movement paths, which are a linear movement path along which the movable member moves in a direction orthogonal to the optical axis and a rotation path along which the movable member rotates around a point on the linear movement path.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: May 20, 2014
    Assignee: Nidec Copal Corporation
    Inventors: Kazuo Shikama, Takuya Machida, Haruhiko Mandai, Hiroyuki Watanabe
  • Patent number: 8711497
    Abstract: A lens driving device includes a base member, a movable member that is disposed at the base member and moves in a plane that is orthogonal to an optical axis, a first driving portion that moves the movable member in a direction that is orthogonal to the optical axis in accordance with image shake, a lens frame that is mounted to the movable member and moves in a direction of the optical axis, a second driving portion that moves the lens frame in the direction of the optical axis and includes a first magnet that is secured to the movable member and a first coil that is secured to the lens frame, and a Hall element that is disposed so as to oppose the first magnet in the direction of the optical axis and detects a change in a magnetic field of the first magnet.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 29, 2014
    Assignee: Nidec Copal Corporation
    Inventors: Takuya Machida, Kazuo Shikama, Haruhiko Mandai, Yusuke Ehara, Nobuaki Watanabe
  • Publication number: 20130121672
    Abstract: A tilt correction unit includes: an inner frame, inside which an optical unit is held; an outer frame surrounding the inner frame, with a gap formed between the inner frame and the outer frame around an entire perimeter of the inner frame; an elastic part which is disposed between the outer frame and the inner frame and elastically supports the inner frame inside the outer frame; a rotational movement support part that connects a part of an outer peripheral surface of the inner frame to a part of an inner peripheral surface of the outer frame; and a drive unit that comprises a magnet and a coil disposed opposite each other with a gap therebetween, wherein the inner frame is driven by the drive unit and rotates about the rotational support part, in a plane perpendicular to the optical axis of the optical unit.
    Type: Application
    Filed: July 28, 2011
    Publication date: May 16, 2013
    Inventors: Kazuo Shikama, Yuuhei Kobayashi, Yohsuke Ikeda, Nobuaki Watanabe, Kiyoshi Toma