Patents by Inventor Hitoshi Ozasa

Hitoshi Ozasa 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).

  • Publication number: 20180036508
    Abstract: A vascular embolization device includes a coil with a primary shape and an stretch resistant wire provided inside the coil, in which the stretch resistant wire is a multilayer strand including at least one core layer and at least one outer layer including one or more resin compositions and a biochemical active material, and the core layer is composed of a material with a tensile break strength higher than that of the outer layer. The vascular embolization device has the function of administering a biochemical active material and also has good flexibility.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 8, 2018
    Applicant: KANEKA MEDIX CORPORATION
    Inventors: Hitoshi OZASA, Atsushi OGAWA, Yasushi YAMANAKA, Hiroo IWATA, Tomonobu KODAMA
  • Publication number: 20180028190
    Abstract: A vascular embolization device having the function of administering a biochemical active material and also having high flexibility is provided. Specifically, the vascular embolization device includes a coil and a biochemical active material-containing resin wire inserted in the inside of the coil, in which the resin wire is a multilayer strand including a core and at least one outer layer, and the core and the at least one outer layer individually include resin compositions with solubilities different from each other in the same organic solvent.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 1, 2018
    Applicant: KANEKA MEDIX CORPORATION
    Inventors: Hitoshi OZASA, Atsushi OGAWA, Yasushi YAMANAKA, Hiroo IWATA, Tomonobu KODAMA
  • Publication number: 20020143384
    Abstract: A cylindrical stent cover covering a cylindrical stent body wherein open at both ends and longitudinally elongates between the both open ends having an inner side surface and an outer side surface, said stent cover covers the inner side surface and/or outer side surface of said stent body, said stent cover comprise a central part made of a nonporous film and the both ends made of a porous film. When the stent cover use as cover of stent body placed in body duct like the vessel, it provides that maintains lumen in a state of patency over a long period of time and has an effect of preventing restenosis.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 3, 2002
    Inventor: Hitoshi Ozasa
  • Patent number: 5334146
    Abstract: A catheter balloon made of a polymer and comprising a cylindrical portion of a substantially uniform diameter, tapered portions at the front and rear of the cylindrical portion and connecting portions at the front and rear of the tapered portions, wherein the wall thicknesses (B) of the middle parts of the tapered portions are equal to or smaller than 1.2 times the wall thickness (A) of the cylindrical portion (B/A.ltoreq.1.2), and the wall thickness of the front tapered portion is less than the wall thickness of the rear tapered portion.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: August 2, 1994
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Hitoshi Ozasa