Patents by Inventor Izumi Akiyama

Izumi Akiyama 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).

  • Patent number: 7510226
    Abstract: A non-contact holder includes: a body 2 having an ejection recess 3 having an ejection opening 3b from which a fluid is ejected and a tapered surface 3c gradually diverging toward the ejection opening; discharge ports 10 provided at positions adjacent to the tapered surface of the ejection recess of the body to discharge the fluid along the tapered surface in the axial direction; a fluid supply channel 7 connected to the discharge ports to supply the fluid; radial flow guides 11 formed on the tapered surface of the ejection recess to guide the flow of the fluid discharged from the discharge ports radially outward from the center of the ejection recess; and a flat end surface 4 formed integrally with the outer edge of the body around the ejection opening and opposed to the surface of a workpiece 5 opposing to the ejection opening to guide the flow of the fluid to the outside of the opposite surface of the workpiece 5.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: March 31, 2009
    Inventor: Izumi Akiyama
  • Publication number: 20060290151
    Abstract: A non-contact holder includes: a body 2 having an ejection recess 3 having an ejection opening 3b from which a fluid is ejected and a tapered surface 3c gradually diverging toward the ejection opening; discharge ports 10 provided at positions adjacent to the tapered surface of the ejection recess of the body to discharge the fluid along the tapered surface in the axial direction; a fluid supply channel 7 connected to the discharge ports to supply the fluid; radial flow guides 11 formed on the tapered surface of the ejection recess to guide the flow of the fluid discharged from the discharge ports radially outward from the center of the ejection recess; and a flat end surface 4 formed integrally with the outer edge of the body around the ejection opening and opposed to the surface of a workpiece 5 opposing to the ejection opening to guide the flow of the fluid to the outside of the opposite surface of the workpiece 5.
    Type: Application
    Filed: February 23, 2005
    Publication date: December 28, 2006
    Inventor: Izumi Akiyama