Patents by Inventor Kosuke Masui

Kosuke Masui 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: 20230330304
    Abstract: To provide a method for suppressing the entry of scar tissue in the treatment of a tendon or ligament, promoting healing by intratendinous cells, and efficiently restoring the original function of the tendon. A gel material including a polymer gel for suppressing expression of type III collagen in the treatment of an injured or ruptured tendon or ligament, in which the polymer gel is a hydrogel having a three-dimensional network structure formed by crosslinking of hydrophilic polymers, and has a polymer content of from 1 to 5% by weight and an elastic modulus of from 100 to 10000 Pa.
    Type: Application
    Filed: July 13, 2021
    Publication date: October 19, 2023
    Inventors: Takamasa SAKAI, Taku SAITO, Yasuhide IWANAGA, Sakae TANAKA, Kosuke MASUI, Shinichi NARITA
  • Publication number: 20230293778
    Abstract: An object of the present invention is to provide a novel use in which a polymer gel material having a µm-scale porous structure can be suitably used. A gel material for regenerative medicine comprising a polymer gel in which hydrophilic polymer units are crosslinked with each other, wherein the polymer gel contains water as a solvent and has a three-dimensional network structure having two regions: a first region in which the polymer units are densely present and a second region in which the polymer units are sparsely present, and a mesh size composed of the first region is the range of 1 to 500 µm.
    Type: Application
    Filed: January 25, 2021
    Publication date: September 21, 2023
    Inventors: Takamasa SAKAI, Hironori HOJO, Shoichiro TANI, Kosuke MASUI, Shinichi NARITA
  • Publication number: 20230218797
    Abstract: An object of the present invention is to provide a hemostatic method, a vascular occlusion method, a tissue covering method, and a body fluid coagulation method that are safe and efficient using a polymer material that is a non-biologically derived synthetic product. A solution (pre-gel solution) is prepared that contains, under a specific concentration condition, a hydrophilic polymer capable of forming a hydrogel by intermolecular crosslinking and has a specific pH condition and specific ionic strength, and the solution is gelled in situ in an environment, such as a bleeding site or the interior of a blood vessel, where blood is present.
    Type: Application
    Filed: May 6, 2021
    Publication date: July 13, 2023
    Inventors: Takamasa SAKAI, Kosuke MASUI, Shinichi NARITA, Hiroyuki KAMATA
  • Patent number: 4812338
    Abstract: A combination of an artificial flower-forming ribbon and a tack plate wherein the ribbon includes a pair of strips overlapped with respect to each other and at least one string disposed along and interposed between the strips, the string being joined to one end of each of the strips at one end thereof, while the strips are adhered to each other at at least two portions on each of a plurality of lines spaced apart in the longitudinal direction of the strips so as to permit relative movement between the strips and the string in order to form the flower petals. The tack plate includes a slit which extends from a central portion thereof to a peripheral edge portion thereof whereby insertion of the strips and/or string into and through the tack plate is simplified and facilitated. A central hole is also provided within the tack plate and in communication with the slit so as to accommodate the string once the same has been inserted within the tack plate.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: March 14, 1989
    Assignee: Kabushiki Kaisha Aoyama
    Inventor: Kosuke Masui
  • Patent number: 4725461
    Abstract: A combination of an artificial-flower-forming ribbon and a tack plate, wherein the artificial-flower-forming ribbon having a pair of strips overlapped with respect to each other and at least one string placed along and between the strips, the string being joined to one end of each of the strips at one end thereof, the strips being adhered to each other at least at two portions on each of a plurality of lines spaced apart in the longitudinal direction of the strips so as to permit relative movement of the strips and string placed between the strips. The tack plate includes a first plate member having at least one slit or hole, through which both of the strips and string are passed, and a second plate member having adhesive films on both surfaces thereof. The second plate member is joined at one surface thereof to the first plate member and one of the strips passed through the slit or hole of the first plate member.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: February 16, 1988
    Assignee: Kabushiki Kaisha Aoyama
    Inventor: Kosuke Masui