Patents by Inventor Shigeaki MATSUNAGA

Shigeaki MATSUNAGA 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).

  • Dispenser, and dispenser and cartridge
    Patent number: 10595963
    Abstract: A dispenser includes a guide shaft, a housing, accommodating the guide shaft, and supporting the guide shaft movably frontward and rearward along an axial direction, a slide block slidably mounted on the guide shaft, a piston shaft having one end mounted on the slide block, and another end projecting from the housing as the slide block moves frontward, a handle projecting from the housing, a slide bar having one end rotatably supported on the housing, and another end approaching the handle when rotated, and an engaging piece provided on the one end of the slide bar and engaging a guide groove formed in the guide shaft, wherein the engaging piece moves the guide shaft frontward when the other end of the slide bar is rotated to approach the handle due to an operation of a user.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 24, 2020
    Assignee: GC Corporation
    Inventors: Tatsunosuke Miyano, Shigeaki Matsunaga
  • DISPENSER, AND DISPENSER AND CARTRIDGE
    Publication number: 20190142549
    Abstract: A dispenser includes a guide shaft, a housing, accommodating the guide shaft, and supporting the guide shaft movably frontward and rearward along an axial direction, a slide block slidably mounted on the guide shaft, a piston shaft having one end mounted on the slide block, and another end projecting from the housing as the slide block moves frontward, a handle projecting from the housing, a slide bar having one end rotatably supported on the housing, and another end approaching the handle when rotated, and an engaging piece provided on the one end of the slide bar and engaging a guide groove formed in the guide shaft, wherein the engaging piece moves the guide shaft frontward when the other end of the slide bar is rotated to approach the handle due to an operation of a user.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 16, 2019
    Applicants: GC Corporation, SHIODA Dental Company
    Inventors: Tatsunosuke MIYANO, Shigeaki MATSUNAGA