Patents by Inventor Yoshimitsu Momoi

Yoshimitsu Momoi 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).

  • Substrate for sample analysis, sample analysis device, sample analysis system, and method for controlling sample analysis device
    Patent number: 11946943
    Abstract: A sample analysis substrate in which transfer of a liquid is effected through rotational motions, including: a substrate having a rotation axis; a first retention chamber being located in the substrate and retaining a diluent; a measurement chamber being located in the substrate; at least one reagent; a reagent chamber being located in the substrate and having the at least one reagent disposed therein, the reagent chamber being connected to the measurement chamber; and a first diluent path being located in the substrate, and connecting the first retention chamber and the measurement chamber or reagent chamber.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: April 2, 2024
    Assignee: PHC HOLDINGS CORPORATION
    Inventors: Hiroshi Saiki, Yoshimitsu Momoi
  • SUBSTRATE FOR SAMPLE ANALYSIS, SAMPLE ANALYSIS DEVICE, SAMPLE ANALYSIS SYSTEM, AND METHOD FOR CONTROLLING SAMPLE ANALYSIS DEVICE
    Publication number: 20210072267
    Abstract: A sample analysis substrate in which transfer of a liquid is effected through rotational motions, including: a substrate having a rotation axis; a first retention chamber being located in the substrate and retaining a diluent; a measurement chamber being located in the substrate; at least one reagent; a reagent chamber being located in the substrate and having the at least one reagent disposed therein, the reagent chamber being connected to the measurement chamber; and a first diluent path being located in the substrate, and connecting the first retention chamber and the measurement chamber or reagent chamber.
    Type: Application
    Filed: February 4, 2019
    Publication date: March 11, 2021
    Inventors: Hiroshi SAIKI, Yoshimitsu MOMOI
  • Disk apparatus having an improved clamp structure
    Patent number: 7027261
    Abstract: A magnetic disk apparatus can achieve reduced thickness by reducing thickness of the clamp, improved shock resistance achieved by an increase of clamping force, and reduced rotating synchronous deviation due to such as camber or undulation of a disk generated by eccentricity of the disk depressing section, a disk receiving surface of the spindle hub and the disk. That is, on a circumference more inwards than a portion in contact with an outside diameter of screw head section and clamp, clamp has displacement section in a screw axial direction throughout the whole circumference with a contact section set as a reference.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: April 11, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Yoshimitsu Momoi
  • Disk device
    Publication number: 20050099723
    Abstract: A magnetic disk apparatus can achieve reduced thickness by reducing thickness of the clamp, improved shock resistance achieved by an increase of clamping force, and reduced rotating synchronous deviation due to such as camber or undulation of a disk generated by eccentricity of the disk depressing section, a disk receiving surface of the spindle hub and the disk. That is, on a circumference more inwards than a portion in contact with an outside diameter of screw head section and clamp, clamp has displacement section in a screw axial direction throughout the whole circumference with a contact section set as a reference.
    Type: Application
    Filed: May 17, 2002
    Publication date: May 12, 2005
    Inventor: Yoshimitsu Momoi