Patents by Inventor Keisuke IWAKAMI

Keisuke IWAKAMI 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).

  • Convex portion, method of manufacturing convex portion, positioning structure
    Patent number: 11110507
    Abstract: A convex portion projecting from a plate member includes a base, a convex body, and a guide. The base is part of the plate member. The convex body erects in a cylindrical shape from the base. The guide is at a top end of the convex body. The base includes a first inner circumferential surface, a second inner circumferential surface, and a third inner circumferential surface. The first inner circumferential surface is continuous with an inner circumferential surface of the convex body and extends in a direction opposite to an erecting direction of the convex body. The second inner circumferential surface is continuous with the first inner circumferential surface and intersects the erecting direction of the convex body. The third inner circumferential surface is continuous with the second inner circumferential surface and is larger in diameter than the first inner circumferential surface.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 7, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Keisuke Iwakami
  • CONVEX PORTION, METHOD OF MANUFACTURING CONVEX PORTION, POSITIONING STRUCTURE
    Publication number: 20200038935
    Abstract: A convex portion projecting from a plate member includes a base, a convex body, and a guide. The base is part of the plate member. The convex body erects in a cylindrical shape from the base. The guide is at a top end of the convex body. The base includes a first inner circumferential surface, a second inner circumferential surface, and a third inner circumferential surface. The first inner circumferential surface is continuous with an inner circumferential surface of the convex body and extends in a direction opposite to an erecting direction of the convex body. The second inner circumferential surface is continuous with the first inner circumferential surface and intersects the erecting direction of the convex body. The third inner circumferential surface is continuous with the second inner circumferential surface and is larger in diameter than the first inner circumferential surface.
    Type: Application
    Filed: July 24, 2019
    Publication date: February 6, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: Keisuke IWAKAMI