Patents by Inventor Akitoshi TOMIHARA

Akitoshi TOMIHARA 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).

  • Needle and method for manufacturing the same
    Patent number: 10086150
    Abstract: A method for manufacturing a needle tapered along the longitudinal direction by electroforming comprises: a step of immersing a core material (122) having an outer peripheral surface that is tapered along the longitudinal direction in an electrolyte and forming a first electroformed body (126) on an outer peripheral surface (124) of the core material (122); a step of immersing the first electroformed body (126) in an electrolyte to which particles having a prescribed particle size are added and forming a second electroformed body (134) having multiple protrusions (30) on an outer peripheral surface (128) of the first electroformed body (126); a step of cutting the first electroformed body (126) and second electroformed body (134) into a prescribed length and forming a needle (10) having a sharp needle tip (16); and a step of pulling out the core material (122) from the cut first electroformed body (126).
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: October 2, 2018
    Assignee: EFR CO., LTD.
    Inventors: Akitoshi Tomihara, Terumi Takimiya, Tetsuo Tanaka
  • NEEDLE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20160310678
    Abstract: A method for manufacturing a needle tapered along the longitudinal direction by electroforming comprises: a step of immersing a core material (122) having an outer peripheral surface that is tapered along the longitudinal direction in an electrolyte and forming a first electroformed body (126) on an outer peripheral surface (124) of the core material (122); a step of immersing the first electroformed body (126) in an electrolyte to which particles having a prescribed particle size are added and forming a second electroformed body (134) having multiple protrusions (30) on an outer peripheral surface (128) of the first electroformed body (126); a step of cutting the first electroformed body (126) and second electroformed body (134) into a prescribed length and forming a needle (10) having a sharp needle tip (16); and a step of pulling out the core material (122) from the cut first electroformed body (126).
    Type: Application
    Filed: October 31, 2013
    Publication date: October 27, 2016
    Inventors: Akitoshi TOMIHARA, Terumi TAKIMIYA, Tetsuo TANAKA