Patents by Inventor Norihisa Ilo

Norihisa Ilo 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).

  • Pulley structure
    Patent number: 11428305
    Abstract: A pulley structure includes: a cylindrical outer rotation body; an inner rotation body; and a torsion coil spring. The torsion coil spring includes: one end region which is in contact with one rotation body; the other end region which is in contact with the other rotation body; and a middle region. The other rotation body includes: a first contact surface; a facing surface; an inclined surface; and a second contact surface. The facing surface includes a constraining surface connected to the inclined surface. The constraining surface is configured to be capable of constraining the other end region of the torsion coil spring before press fitting so as to prevent a displacement of an axis of the torsion coil spring before the press fitting with respect to an axis of the other rotation body.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: August 30, 2022
    Assignee: Mitsuboshi Belting Ltd.
    Inventor: Norihisa Ilo
  • Pulley Structure
    Publication number: 20210199186
    Abstract: A pulley structure includes: a cylindrical outer rotation body; an inner rotation body; and a torsion coil spring. The torsion coil spring includes: one end region which is in contact with one rotation body; the other end region which is in contact with the other rotation body; and a middle region. The other rotation body includes: a first contact surface; a facing surface; an inclined surface; and a second contact surface. The facing surface includes a constraining surface connected to the inclined surface. The constraining surface is configured to be capable of constraining the other end region of the torsion coil spring before press fitting so as to prevent a displacement of an axis of the torsion coil spring before the press fitting with respect to an axis of the other rotation body.
    Type: Application
    Filed: May 24, 2019
    Publication date: July 1, 2021
    Applicant: Mitsuboshi Belting Ltd.
    Inventor: Norihisa Ilo