Patents by Inventor Kenichiro Irimiya

Kenichiro Irimiya 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).

  • Tire, device for extruding unvulcanized tread rubber for the tire, and method of extruding unvulcanized tread rubber for the tire
    Publication number: 20060157177
    Abstract: A crack suppressing rubber, which has elongation-at-break which is superior to elongation-at-break of a cap rubber, is disposed so as to reinforce a vicinity of a groove bottom of a circumferential direction narrow groove provided in the vicinity of a shoulder of a tire tread. Due to this, generation of cracks from the vicinity of the groove bottom, at a time when land portions at an outer side of the circumferential direction narrow groove are greatly deformed due to a large lateral force or due to recesses and projections of a road surface or the like, and growth of generated cracks are suppressed. As a result, breaking of land portions at outermost sides in a widthwise direction of a tire, and separation of the tread can be effectively suppressed.
    Type: Application
    Filed: March 21, 2006
    Publication date: July 20, 2006
    Inventors: Go Shimada, Kenichiro Irimiya, Eiichiro Yamane
  • Tire, device for extruding unvulcanized tread rubber for the tire, and method of extruding unvulcanized tread rubber for the tire
    Publication number: 20020157747
    Abstract: A crack suppressing rubber, which has elongation-at-break which is superior to elongation-at-break of a cap rubber, is disposed so as to reinforce a vicinity of a groove bottom of a circumferential direction narrow groove provided in the vicinity of a shoulder of a tire tread. Due to this, generation of cracks from the vicinity of the groove bottom, at a time when land portions at an outer side of the circumferential direction narrow groove are greatly deformed due to a large lateral force or due to recesses and projections of a road surface or the like, and growth of generated cracks are suppressed. As a result, breaking of land portions at outermost sides in a widthwise direction of a tire, and separation of the tread can be effectively suppressed.
    Type: Application
    Filed: March 11, 2002
    Publication date: October 31, 2002
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Go Shimada, Kenichiro Irimiya, Eiichiro Yamane
  • Automobile tire
    Patent number: D464614
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: October 22, 2002
    Assignee: Bridgestone Corporation
    Inventor: Kenichiro Irimiya
  • Tread portion of an automobile tire
    Patent number: D484456
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: December 30, 2003
    Assignee: Bridgestone Corporation
    Inventor: Kenichiro Irimiya
  • Tread portion of an automobile tire
    Patent number: D489036
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: April 27, 2004
    Assignee: Bridgestone Corporation
    Inventor: Kenichiro Irimiya
  • Tread portion of an automobile tire
    Patent number: D489037
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: April 27, 2004
    Assignee: Bridgestone Corporation
    Inventor: Kenichiro Irimiya