Patents by Inventor Kenichi Ohura

Kenichi Ohura 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).

  • Pneumatic radial tires with at least two monofilament cord belt layers
    Patent number: 6802350
    Abstract: A pneumatic radial tire comprises a innerliner, a carcass, a belt, one or more cap layers and a tread, in which the belt is comprised of at least two belt layers each containing rubberized metal or organic fiber monofilament cords, and a rubber gauge between the monofilament cords located in the adjacent belt layers is made 1.5-5 times of a diameter of the monofilament cord.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: October 12, 2004
    Assignee: Bridgestone Corporation
    Inventor: Kenichi Ohura
  • Pneumatic tires having sidewall reinforcing rubber and bead reinforcing layer
    Patent number: 6543502
    Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a radial carcass toroidally extending between a pair of bead cores and wound around the bead core from an inside toward an outside in the radial direction, a bead filler, and a reinforcing rubber arranged at the inside of the sidewall portion in the widthwise direction of the tire, wherein at least one cord reinforcing layer made from a cord(s) extending in an angle direction of approximately 90° with respect to a radial line segment is arranged in a region ranging outward from a vicinity of the bead core in the radial direction and has a width in the radial direction of the tire corresponding to 10-50% of a section height of the tire.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 8, 2003
    Assignee: Bridgestone Corporation
    Inventor: Kenichi Ohura
  • Pneumatic radial tires
    Publication number: 20020033218
    Abstract: A pneumatic radial tire comprises a innerliner, a carcass, a belt, one or more cap layers and tread, in which the belt is comprised of at least two belt layers each containing rubberized metal or organic fiber monofilament cords, and a rubber gauge between the monofilament cords located in the adjacent belt layers is made 1.5-5 times of a diameter of the monofilament cord.
    Type: Application
    Filed: July 25, 2001
    Publication date: March 21, 2002
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Kenichi Ohura
  • Pneumatic tires
    Publication number: 20010022210
    Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a radial carcass toroidally extending between a pair of bead cores and wound around the bead core from an inside toward an outside in the radial direction, a bead filler, and a reinforcing rubber arranged at the inside of the sidewall portion in the widthwise direction of the tire, wherein at least one cord reinforcing layer made from a cord(s) extending in an angle direction of approximately 90° with respect to a radial line segment is arranged in a region ranging outward from a vicinity of the bead core in the radial direction and has a width in the radial direction of the tire corresponding to 10-50% of a section height of the tire.
    Type: Application
    Filed: February 28, 2001
    Publication date: September 20, 2001
    Inventor: Kenichi Ohura