Patents by Inventor Takeya Nakayama

Takeya Nakayama 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).

  • Lens-interchangeable camera performing focus control, lens barrel, and program
    Patent number: 8355626
    Abstract: A lens-interchangeable camera includes a focus detector performing focus detection and a controller performing a drive control of a lens based on a defocus amount. The controller finishes focusing operation without driving the lens when the defocus amount is out a range of a first in-focus determination width, and performs the focusing operation when the defocus amount is out a range of the first in-focus determination width. The controller finishes the focusing operation without performing the focus detection again after completing the drive when the defocus amount is out a range of a second in-focus determination width, and performs the focus detection again after completing the drive when the defocus amount is out a range of the second in-focus determination width. The second in-focus determination width is set to be greater than the first in-focus determination width and be greater than or equal to a drive limit value.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: January 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Ishikawa, Masahisa Tamura, Tadanori Okada, Takumi Yamanaka, Kunihiko Sasaki, Yasushi Murakami, Shota Shimada, Takeya Nakayama
  • Interchangeable lens and camera system
    Patent number: 8287197
    Abstract: An interchangeable lens which is removably mounted on a camera body including an image sensor includes a tilt unit configured to move a lens unit in a tilt direction with respect to the image sensor, a shift unit configured to move the lens unit in a shift direction with respect to the image sensor, a changing unit configured to change a relative angle between the shift unit and the tilt unit by relatively rotating the shift unit and the tilt unit, a detection unit configured to detect the relative angle, and a control unit configured to transmit to the camera body a detection result of the relative angle detected by the detection unit.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: October 16, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiko Sasaki, Takeya Nakayama, Hiromu Yasuda, Yuki Nagao
  • LENS-INTERCHANGEABLE CAMERA PERFORMING FOCUS CONTROL, LENS BARREL, AND PROGRAM
    Publication number: 20110286733
    Abstract: A lens-interchangeable camera includes a focus detector performing focus detection and a controller performing a drive control of a lens based on a defocus amount. The controller finishes focusing operation without driving the lens when the defocus amount is out a range of a first in-focus determination width, and performs the focusing operation when the defocus amount is out a range of the first in-focus determination width. The controller finishes the focusing operation without performing the focus detection again after completing the drive when the defocus amount is out a range of a second in-focus determination width, and performs the focus detection again after completing the drive when the defocus amount is out a range of the second in-focus determination width. The second in-focus determination width is set to be greater than the first in-focus determination width and be greater than or equal to a drive limit value.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 24, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masanori Ishikawa, Masahisa Tamura, Tadanori Okada, Takumi Yamanaka, Kunihiko Sasaki, Yasushi Murakami, Shota Shimada, Takeya Nakayama
  • INTERCHANGEABLE LENS AND CAMERA SYSTEM
    Publication number: 20100209097
    Abstract: An interchangeable lens which is removably mounted on a camera body including an image sensor includes a tilt unit configured to move a lens unit in a tilt direction with respect to the image sensor, a shift unit configured to move the lens unit in a shift direction with respect to the image sensor, a changing unit configured to change a relative angle between the shift unit and the tilt unit by relatively rotating the shift unit and the tilt unit, a detection unit configured to detect the relative angle, and a control unit configured to transmit to the camera body a detection result of the relative angle detected by the detection unit.
    Type: Application
    Filed: February 10, 2010
    Publication date: August 19, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kunihiko Sasaki, Takeya Nakayama, Hiromu Yasuda, Yuki Nagao