Patents by Inventor Naoto KUWAMURA

Naoto KUWAMURA 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).

  • Sealing device and rotary machine
    Patent number: 11927112
    Abstract: A sealing device according to at least one embodiment includes not less than three arc-shaped fins arranged in an axial direction. The arc-shaped fins include: a first fin which is one of two outermost fins located on an outermost side in the axial direction; a second fin disposed adjacent to the first fin in the axial direction; and at least one third fin disposed opposite to the first fin across the second fin in the axial direction. It is preferable that the third fin is disposed to be inclined with respect to a radial direction such that a tip end portion is located on a side of the first fin in the axial direction relative to a base end portion, and the third fin has a larger inclination angle than the first fin or the second fin with respect to the radial direction.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: March 12, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Naoto Omura, Kazuyuki Matsumoto, Yoshihiro Kuwamura, Eiji Konishi, Kentaro Tanaka
  • IONIC SOLID
    Publication number: 20220135607
    Abstract: Provided is an ionic solid having pores for incorporating a substance therein.
    Type: Application
    Filed: April 24, 2020
    Publication date: May 5, 2022
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Takumi KONNO, Naoto KUWAMURA, Tatsuhiro KOJIMA, Nobuto YOSHINARI