Patents by Inventor Takahiro Komiyama

Takahiro Komiyama 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: 20240337904
    Abstract: An optical system includes, in order from an object side to an image side, a first lens having negative refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having negative refractive power. A first lens surface on the object side of the first lens is aspheric, and the first lens surface has an area in which a curvature that is convex toward the object side increases from a central portion to a peripheral portion. Predetermined inequalities are satisfied.
    Type: Application
    Filed: April 4, 2024
    Publication date: October 10, 2024
    Inventor: Takahiro KOMIYAMA
  • Publication number: 20240126250
    Abstract: In a production information processing apparatus, a storage device stores a resource shared among a plurality of machines belonging to a predetermined manufacturing area, 4M data information that is time-series data of operating states per unit time of the machines and the resource related to the machines, and a production loss analysis model that defines a criterion for determining a production loss from a combination of the operating states per unit time in the 4M data information, and a processor identifies a production loss of each of the machines to generate production loss information, and combines the production loss information of one of the machines and 4M data information of another of the machines that is different from the machine and shares the resource, using the production loss information and the shared resource, to classify an occurrence factor of the production loss and generate loss occurrence factor information.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 18, 2024
    Inventors: Daisuke TSUTSUMI, Takahiro KOMIYAMA
  • Publication number: 20230408797
    Abstract: An optical system includes, in order from an object side to an image side, a front unit having negative refractive power, an aperture stop, and a rear unit having positive refractive power. The front unit includes a plurality of aspheric lenses. A predetermined condition is satisfied.
    Type: Application
    Filed: June 13, 2023
    Publication date: December 21, 2023
    Inventor: Takahiro KOMIYAMA
  • Patent number: 11789247
    Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power. The first lens unit includes a negative lens B1Ln with a concave surface facing the object side. The second lens unit includes at least one negative lens. During zooming from a wide-angle end to a telephoto end, the first lens unit moves, and the fourth lens unit is fixed or moves from the object side to the image side. A predetermined condition is satisfied.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: October 17, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Komiyama
  • Patent number: 11782252
    Abstract: An optical system includes a front lens unit, a first focusing unit having a negative refractive power, and a second focusing unit having a negative refractive power in this order from an object side to an image side. The optical system is a single focus optical system. When a focus is shifted from an object at infinity to an object at a short distance, the first focusing unit and the second focusing unit move to change a distance between the first focusing unit and the second focusing unit on an optical axis.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: October 10, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Komiyama
  • Publication number: 20230097746
    Abstract: An optical system includes a front lens unit with positive refractive power, an intermediate lens unit, and a rear lens unit in order from an object side to an image side. The intermediate lens unit moves to change an interval between the front lens unit and the intermediate lens unit and an interval between the intermediate lens unit and the rear lens unit in focusing from infinity to a close range. The focal length of the front lens unit and the effective diameter of a lens surface closest to the image side in the rear lens unit satisfy a predetermined inequality.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 30, 2023
    Inventor: Takahiro Komiyama
  • Publication number: 20210382283
    Abstract: An optical system includes a front lens unit, a first focusing unit having a negative refractive power, and a second focusing unit having a negative refractive power in this order from an object side to an image side. The optical system is a single focus optical system. When a focus is shifted from an object at infinity to an object at a short distance, the first focusing unit and the second focusing unit move to change a distance between the first focusing unit and the second focusing unit on an optical axis.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 9, 2021
    Inventor: Takahiro Komiyama
  • Publication number: 20210356721
    Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power. The first lens unit includes a negative lens B1Ln with a concave surface facing the object side. The second lens unit includes at least one negative lens. During zooming from a wide-angle end to a telephoto end, the first lens unit moves, and the fourth lens unit is fixed or moves from the object side to the image side. A predetermined condition is satisfied.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 18, 2021
    Inventor: Takahiro Komiyama