Patents by Inventor Motohiro Fukazawa

Motohiro Fukazawa 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).

  • Plastic lens, and molding method and molding mold therefor
    Patent number: 8605360
    Abstract: Provided is a plastic lens molded with a mold includes: an optical surface formed of an incident/output surface in a rectangular shape formed in a direction orthogonal to an optical axis; a long side surface portion that is a side surface in a longitudinal direction adjacent to the optical surface; at least one positioning reference portion as a positioning reference for positioning the plastic lens with respect to another member, formed on the long side surface portion; a gate-side short side surface portion with an injection port for a resin formed therein; an anti-gate side short side surface portion positioned on an opposite side of the gate-side short side surface portion; and a deflection suppressing shape portion in one of a convex shape and a concave shape formed on the anti-gate side short side surface portion.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Motohiro Fukazawa
  • PLASTIC LENS, AND MOLDING METHOD AND MOLDING MOLD THEREFOR
    Publication number: 20110199688
    Abstract: Provided is a plastic lens molded with a mold includes: an optical surface formed of an incident/output surface in a rectangular shape formed in a direction orthogonal to an optical axis; a long side surface portion that is a side surface in a longitudinal direction adjacent to the optical surface; at least one positioning reference portion as a positioning reference for positioning the plastic lens with respect to another member, formed on the long side surface portion; a gate-side short side surface portion with an injection port for a resin formed therein; an anti-gate side short side surface portion positioned on an opposite side of the gate-side short side surface portion; and a deflection suppressing shape portion in one of a convex shape and a concave shape formed on the anti-gate side short side surface portion.
    Type: Application
    Filed: August 20, 2010
    Publication date: August 18, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Motohiro Fukazawa