Patents by Inventor Kazunori SAKYU

Kazunori SAKYU 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).

  • Butterfly-valve seat ring and fixing structure of the same, and eccentric-type butterfly valve
    Patent number: 10520098
    Abstract: A butterfly-valve seat ring and fixing structure of the same, and an eccentric-type butterfly valve in which, the butterfly-valve seat ring has a flexible part (31) with a predetermined material thickness integrally and extendedly provided on one side surface of an inner diameter of a ring-shaped base body part (30) having a substantially rectangular shape in section and has a fixing part (32) integrally and extendedly provided on one side surface of an outer diameter of the base body part, has a recessed-shaped space part (40) provided between an outer circumferential surface (36) of the flexible part and an inner circumferential surface (37) of the fixing part, and has a seal contact part (35) provided to project at an inner diameter position of the flexible part. The seal contact part is positioned on an inner circumferential surface of the flexible part rather than a depth-side position of the space part.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 31, 2019
    Assignee: KITZ CORPORATION
    Inventors: Yukihiro Miyashita, Kazunori Sakyu
  • BUTTERFLY-VALVE SEAT RING AND FIXING STRUCTURE OF THE SAME, AND ECCENTRIC-TYPE BUTTERFLY VALVE
    Publication number: 20170299065
    Abstract: A butterfly-valve seat ring and fixing structure of the same, and an eccentric-type butterfly valve in which, the butterfly-valve seat ring has a flexible part (31) with a predetermined material thickness integrally and extendedly provided on one side surface of an inner diameter of a ring-shaped base body part (30) having a substantially rectangular shape in section and has a fixing part (32) integrally and extendedly provided on one side surface of an outer diameter of the base body part, has a recessed-shaped space part (40) provided between an outer circumferential surface (36) of the flexible part and an inner circumferential surface (37) of the fixing part, and has a seal contact part (35) provided to project at an inner diameter position of the flexible part. The seal contact part is positioned on an inner circumferential surface of the flexible part rather than a depth-side position of the space part.
    Type: Application
    Filed: October 6, 2015
    Publication date: October 19, 2017
    Inventors: Yukihiro MIYASHITA, Kazunori SAKYU