Patents by Inventor Tomoaki Iimura

Tomoaki Iimura 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).

  • Patent number: 12097991
    Abstract: A bottle can made of aluminum alloy has a base portion; a cylindrical body portion connected to an upper end of the base portion; a reduced diameter portion where a diameter reduces from an upper end of the cylindrical body portion to an upper side; a neck portion provided at an upper side of the reduced diameter portion; and a mouth portion having a male thread portion and a bulge portion provided at an upper side of the neck portion. The reduced diameter portion has: a convex curved portion continuing to the upper end of the cylindrical body portion; a concave curved portion continuing to an upper end of the convex curved portion; a lower convex portion continuing to an upper end of the concave curved portion; and an upper concave portion continuing an upper end of the lower convex portion and a lower end of the neck portion.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: September 24, 2024
    Assignee: Universal Can Corporation
    Inventors: Takashi Hasegawa, Tomoaki Iimura
  • Patent number: 11858681
    Abstract: Provided is a can body in which a skirt part of the cap attached to a curl part certainly wraps to fixable and pressure resistance can be improved. A cylindrical part and a mouth part connected with a neck part with a smaller diameter than the cylindrical part are provided with; the mouth part has a curl part at an outer peripheral part which is made by folding a tip outward in a radial direction to round up; and in a vertical cross section on a can axis, a concave part is formed toward a lower side in the can axis direction, between an outer peripheral-lower side bent part which is convex diagonally downward on an outer peripheral part of the curl part and a curl end part having the tip.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: January 2, 2024
    Assignee: UNIVERSAL CAN CORPORATION
    Inventors: Takashi Hasegawa, Tomoaki Iimura
  • Patent number: 11814209
    Abstract: A can body has a curl portion to which a skirt portion of a cap is mounted. In the curl portion, an outer periphery upper-side bent portion that forms an outer peripheral portion of a folded-back top portion, an outer periphery-side tubular portion that extends downward in a can axis direction, an outer periphery lower-side bent portion that is bent inward in a radial direction, and a curl end portion that extends from an inner peripheral edge of the outer periphery lower-side bent portion are continuously formed. When a radius of curvature of an outer surface of the outer periphery upper-side bent portion is R5 (mm), a radius of curvature of an outer surface of the outer periphery lower-side bent portion is R6 (mm), and a radius of curvature of an outer surface of the inflection portion is R7 (mm), which is 0.05 to 0.2 mm, R7<R6<R5 is established.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: November 14, 2023
    Assignee: Universal Can Corporation
    Inventors: Takashi Hasegawa, Tomoaki Iimura
  • Publication number: 20220055785
    Abstract: A bottle can made of aluminum alloy has a base portion; a cylindrical body portion connected to an upper end of the base portion; a reduced diameter portion where a diameter reduces from an upper end of the cylindrical body portion to an upper side; a neck portion provided at an upper side of the reduced diameter portion; and a mouth portion having a male thread portion and a bulge portion provided at an upper side of the neck portion. The reduced diameter portion has: a convex curved portion continuing to the upper end of the cylindrical body portion; a concave curved portion continuing to an upper end of the convex curved portion; a lower convex portion continuing to an upper end of the concave curved portion; and an upper concave portion continuing an upper end of the lower convex portion and a lower end of the neck portion.
    Type: Application
    Filed: January 29, 2020
    Publication date: February 24, 2022
    Applicant: Universal Can Corporation
    Inventors: Takashi Hasegawa, Tomoaki Iimura
  • Publication number: 20220017257
    Abstract: A can body has a curl portion to which a skirt portion of a cap is mounted. In the curl portion, an outer periphery upper-side bent portion that forms an outer peripheral portion of a folded-back top portion, an outer periphery-side tubular portion that extends downward in a can axis direction, an outer periphery lower-side bent portion that is bent inward in a radial direction, and a curl end portion that extends from an inner peripheral edge of the outer periphery lower-side bent portion are continuously formed. When a radius of curvature of an outer surface of the outer periphery upper-side bent portion is R5 (mm), a radius of curvature of an outer surface of the outer periphery lower-side bent portion is R6 (mm), and a radius of curvature of an outer surface of the inflection portion is R7 (mm), which is 0.05 to 0.2 mm, R7<R6<R5 is established.
    Type: Application
    Filed: November 29, 2019
    Publication date: January 20, 2022
    Applicant: Universal Can Corporation
    Inventors: Takashi HASEGAWA, Tomoaki IIMURA
  • Publication number: 20210323713
    Abstract: Provided is a can body in which a skirt part of the cap attached to a curl part certainly wraps to fixable and pressure resistance can be improved. A cylindrical part and a mouth part connected with a neck part with a smaller diameter than the cylindrical part are provided with; the mouth part has a curl part at an outer peripheral part which is made by folding a tip outward in a radial direction to round up; and in a vertical cross section on a can axis, a concave part is formed toward a lower side in the can axis direction, between an outer peripheral-lower side bent part which is convex diagonally downward on an outer peripheral part of the curl part and a curl end part having the tip.
    Type: Application
    Filed: January 27, 2020
    Publication date: October 21, 2021
    Applicant: UNIVERSAL CAN CORPORATION
    Inventors: Takashi Hasegawa, Tomoaki Iimura