Patents by Inventor Masashi Usuda

Masashi Usuda 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: 11813761
    Abstract: A handle bending razor includes a grip portion, a razor head, and a head coupling portion. The razor head has a blade body, a blade assembly body, a connecting portion, and an elastic support body. The handle bending razor includes a switching mechanism which can change an angle formed by a contact surface and an up-down direction and, when an external force is not applied, switches between a first state in which a neutral angle formed by the contact surface and the up-down direction is a first angle, and the contact surface and the up-down direction become substantially parallel and a second state in which the neutral angle is a second angle larger than the first angle. In the second state, when the external force is applied, the blade assembly body is tiltable to a position where the contact surface and the up-down direction become substantially perpendicular.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: November 14, 2023
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Masashi Usuda
  • Publication number: 20230249370
    Abstract: A handle bending razor includes a grip portion, a razor head, and a head coupling portion. The razor head has a blade body, a blade assembly body, a connecting portion, and an elastic support body. The handle bending razor includes a switching mechanism which can change an angle formed by a contact surface and an up-down direction and, when an external force is not applied, switches between a first state in which a neutral angle formed by the contact surface and the up-down direction is a first angle, and the contact surface and the up-down direction become substantially parallel and a second state in which the neutral angle is a second angle larger than the first angle. In the second state, when the external force is applied, the blade assembly body is tiltable to a position where the contact surface and the up-down direction become substantially perpendicular.
    Type: Application
    Filed: March 22, 2021
    Publication date: August 10, 2023
    Inventor: Masashi USUDA
  • Patent number: 4790237
    Abstract: A damper for use in controlling the flow rate or direction of a flow of air or fumes flowing out from a room or space or flowing through a ventilation system, including a housing having at least one inlet opening. The housing has a tubular side wall in which are provided a plurality of outlet apertures opened and closed by associated closure members which are adapted to swing to and away from the side wall, preferable inwardly of the housing. The total flow area of the outlet apertures may be extended to a desired degree by increasing the axial length and diameter of the side wall of the housing, whereby the flow resistance and pressure drop across the damper are reduced.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: December 13, 1988
    Assignees: Takenaka Corporation, Kyoritsu Co., Ltd.
    Inventors: Masashi Usuda, Kiyoshi Shimizu, Eiji Iwata, Hideo Yamada, Kazutaka Onozuka, Toshio Kuno, Hideo Kuno, Yukio Kuno