Patents by Inventor Tomoki Tokita

Tomoki Tokita 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: 20240129629
    Abstract: A control apparatus for use in an imaging system that includes a first correcting member movable for image stabilization and provided to one of an image pickup apparatus and a lens apparatus detachably attachable to the image pickup apparatus, and a second correcting member movable for the image stabilization and provided to the other of the image pickup apparatus and the lens apparatus acquires first correction ratios of the first correcting member and the second correcting member for angular shake of the imaging system, and second correction ratios of the first correcting member and the second correcting member for shift shake of the imaging system.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 18, 2024
    Inventors: TOMOHIRO INO, SATOSHI MAETAKI, TOMOKI TOKITA, YUKI SHINZATO
  • Patent number: 11800226
    Abstract: A control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first acquiring task configured to acquire information on an image shift sensitivity to a tilt of an imaging optical system corresponding to an image point position of the imaging optical system, which information includes an influence of a distortion of the imaging optical system, and a second acquiring task configured to acquire an image-stabilization driving amount that is used for an image stabilization by an image stabilizer configured to provide the image stabilization. The second acquiring task acquires the image-stabilization driving amount corresponding to a predetermined image point position using the information on the image shift sensitivity corresponding to the predetermined image point position.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: October 24, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuki Shinzato, Tomoki Tokita, Tomohiro Ino, Satoshi Maetaki
  • Publication number: 20230273414
    Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a positive refractive power, and a fifth lens unit having a negative refractive power. During zooming, each distance between adjacent lens units changes. During zooming from a wide-angle end to a telephoto end, the first lens unit moves toward the object side, a distance between the third lens unit and the fourth lens unit decreases, and a distance between the fourth lens unit and the fifth lens unit decreases. The number of optical elements each having a refractive power in the first lens unit is two or less. Predetermined conditions are satisfied.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 31, 2023
    Inventor: Tomoki TOKITA
  • Publication number: 20230217112
    Abstract: A control apparatus, which controls an image pickup system including a first apparatus that is one of an image pickup apparatus and a lens apparatus and a second apparatus that is the other, includes an acquisition unit configured to acquire first information on a first image stabilizing remaining amount at an off-axis image height according to correction by a first image shake corrector provided in the first apparatus and second information on a second image stabilizing remaining amount at the off-axis image height according to correction by a second image shake corrector provided in the second apparatus, and a control unit configured to control at least one of the first image shake corrector and the second image shake corrector on the basis of correction ratios of the first image shake corrector and the second image shake corrector determined using the first information and the second information.
    Type: Application
    Filed: December 29, 2022
    Publication date: July 6, 2023
    Inventors: Tomohiro Ino, Satoshi Maetaki, Yuki Shinzato, Tomoki Tokita, Junichi Saito
  • Publication number: 20220321786
    Abstract: A control apparatus comprising at least one processor or circuit configured to execute a plurality of tasks includes a first acquisition task configured to acquire information on image shift sensitivity relative to decentering of an image stabilizing optical system, the information being associated with an image point position of an image pickup optical system, the image pickup optical system including the image stabilizing optical system configured to perform image stabilization, and a second acquisition task configured to acquire a first image stabilizing driving amount of the image stabilizing optical system during the image stabilization. The second acquisition task is configured to acquire the first image stabilizing driving amount associated with a predetermined image point position by using the information on the image shift sensitivity associated with the predetermined image point position.
    Type: Application
    Filed: March 23, 2022
    Publication date: October 6, 2022
    Inventors: Yuki Shinzato, Tomoki Tokita, Tomohiro Ino, Satoshi Maetaki
  • Publication number: 20220286615
    Abstract: A control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first acquiring task configured to acquire information on an image shift sensitivity to a tilt of an imaging optical system corresponding to an image point position of the imaging optical system, which information includes an influence of a distortion of the imaging optical system, and a second acquiring task configured to acquire an image-stabilization driving amount that is used for an image stabilization by an image stabilizer configured to provide the image stabilization. The second acquiring task acquires the image-stabilization driving amount corresponding to a predetermined image point position using the information on the image shift sensitivity corresponding to the predetermined image point position.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 8, 2022
    Inventors: Yuki Shinzato, Tomoki Tokita, Tomohiro Ino, Satoshi Maetaki