Patents by Inventor Yasumi Kizaki

Yasumi Kizaki 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).

  • Bearing device and hydraulic machine
    Patent number: 9512873
    Abstract: A bearing device of embodiment is usable for a hydraulic machine having a rotary shaft of a vertical shaft, with a water tank storing lubrication water, and a bearing pad supporting a skirt member on the rotary shaft in the lubrication water. The bearing device has a first supporting mechanism slidably supporting the bearing pad from the radial direction, and a second supporting mechanism slidably supporting the bearing pad from a bottom portion side in an axial direction. One of a supporting surface supporting the bearing pad in the first supporting mechanism and a supported surface supported by the supporting surface in the bearing pad is formed in a convex shape. One of a supporting surface supporting the bearing pad in the second supporting mechanism and a supported surface supported by the supporting surface in the bearing pad is formed in a convex shape.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: December 6, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tadashi Oguma, Makoto Mikami, Than Trong Long, Yasumi Kizaki, Masaji Tsutsui, Fumio Takimoto, Naritoshi Nakagawa
  • Underwater sliding member, method for manufacturing underwater sliding member, and hydraulic machine
    Patent number: 9404536
    Abstract: An underwater sliding member of the present embodiment is an underwater sliding member used under water, and has: a base material 11 made of a first metal material; an intermediate layer 12 of a porous structure joined to the base material 11 and made of a second metal material; a corrosion inhibiting layer 122 a part of which is melted and filled into a hole of the porous structure of the intermediate layer 12; and a sliding layer 13 formed on the corrosion inhibiting layer 122 and made of a resin material.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: August 2, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Than Trong Long, Tadashi Oguma, Yasumi Kizaki
  • UNDERWATER SLIDING MEMBER, METHOD FOR MANUFACTURING UNDERWATER SLIDING MEMBER, AND HYDRAULIC MACHINE
    Publication number: 20140153852
    Abstract: An underwater sliding member of the present embodiment is an underwater sliding member used under water, and has: a base material 11 made of a first metal material; an intermediate layer 12 of a porous structure joined to the base material 11 and made of a second metal material; a corrosion inhibiting layer 122 a part of which is melted and filled into a hole of the porous structure of the intermediate layer 12; and a sliding layer 13 formed on the corrosion inhibiting layer 122 and made of a resin material.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Than Trong LONG, Tadashi OGUMA, Yasumi KIZAKI
  • BEARING DEVICE AND HYDRAULIC MACHINE
    Publication number: 20140037451
    Abstract: A bearing device of embodiment is usable for a hydraulic machine having a rotary shaft of a vertical shaft, with a water tank storing lubrication water, and a bearing pad supporting a skirt member on the rotary shaft in the lubrication water. The bearing device has a first supporting mechanism slidably supporting the bearing pad from the radial direction, and a second supporting mechanism slidably supporting the bearing pad from a bottom portion side in an axial direction. One of a supporting surface supporting the bearing pad in the first supporting mechanism and a supported surface supported by the supporting surface in the bearing pad is formed in a convex shape. One of a supporting surface supporting the bearing pad in the second supporting mechanism and a supported surface supported by the supporting surface in the bearing pad is formed in a convex shape.
    Type: Application
    Filed: October 4, 2013
    Publication date: February 6, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tadashi OGUMA, Makoto Mikami, Than Trong Long, Yasumi Kizaki, Masaji Tsutsui, Fumio Takimoto, Naritoshi Nakagawa