Patents by Inventor Shuhei TARA

Shuhei TARA 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).

  • Method for producing porous substrate comprising bioabsorbable polymer that contains heparin, porous substrate comprising bioabsorbable polymer that contains heparin, and artificial blood vessel
    Patent number: 11273237
    Abstract: The present invention aims to provide a method for producing a porous substrate containing a bioabsorbable polymer and heparin in a simple manner without use of a surfactant, a porous substrate containing a bioabsorbable polymer and heparin, and an artificial blood vessel.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 15, 2022
    Assignee: GUNZE LIMITED
    Inventors: Hidetaka Nakayama, Toshiharu Shinoka, Shuhei Tara, Tadahisa Sugiura
  • POROUS BODY AND MATERIAL FOR MEDICAL USE
    Publication number: 20210299333
    Abstract: There is provided a porous body which has a first surface and a second surface opposite to each other, and which comprises a first polymer material and a second polymer material, in which a Young's modulus of the first polymer material is lower than a Young's modulus of the second polymer material, an in vivo disappearance rate of the first polymer material is higher than an in vivo disappearance rate of the second polymer material, and a composition in a first region of the porous body and a composition in a second region of the porous body are different from each other.
    Type: Application
    Filed: June 5, 2018
    Publication date: September 30, 2021
    Inventors: Yasumoto NAKAZAWA, Chiemi SAKATA, Shuhei TARA, Eri KOYANAGI
  • METHOD FOR PRODUCING POROUS SUBSTRATE COMPRISING BIOABSORBABLE POLYMER THAT CONTAINS HEPARIN, POROUS SUBSTRATE COMPRISING BIOABSORBABLE POLYMER THAT CONTAINS HEPARIN, AND ARTIFICIAL BLOOD VESSEL
    Publication number: 20210283314
    Abstract: The present invention aims to provide a method for producing a porous substrate containing a bioabsorbable polymer and heparin in a simple manner without use of a surfactant, a porous substrate containing a bioabsorbable polymer and heparin, and an artificial blood vessel.
    Type: Application
    Filed: August 31, 2017
    Publication date: September 16, 2021
    Inventors: Hidetaka NAKAYAMA, Toshiharu SHINOKA, Shuhei TARA, Tadahisa SUGIURA
  • Artificial blood vessel, method for producing artificial blood vessel, and method for producing porous tissue regeneration substrate
    Patent number: 10463469
    Abstract: The present invention aims to provide a method for producing a porous tissue regeneration substrate that allows a wide choice of solvents and easy adjustment of the bulk density and pore size of the porous substrate. The present invention also aims to provide a method for producing an artificial blood vessel and an artificial blood vessel. The present invention relates a porous, tubular artificial blood vessel containing a bioabsorbable material, the artificial blood vessel including: a skin layer having a relatively small pore size as an innermost layer; and a porous layer positioned around the skin layer and having a relatively large pore size.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: November 5, 2019
    Assignee: GUNZE LIMITED
    Inventors: Hidetaka Nakayama, Kosuke Sawai, Toshiharu Shinoka, Shuhei Tara, Hirotsugu Kurobe
  • ARTIFICIAL BLOOD VESSEL, METHOD FOR PRODUCING ARTIFICIAL BLOOD VESSEL, AND METHOD FOR PRODUCING POROUS TISSUE REGENERATION SUBSTRATE
    Publication number: 20180221132
    Abstract: The present invention aims to provide a method for producing a porous tissue regeneration substrate that allows a wide choice of solvents and easy adjustment of the bulk density and pore size of the porous substrate. The present invention also aims to provide a method for producing an artificial blood vessel and an artificial blood vessel. The present invention relates a porous, tubular artificial blood vessel containing a bioabsorbable material, the artificial blood vessel including: a skin layer having a relatively small pore size as an innermost layer; and a porous layer positioned around the skin layer and having a relatively large pore size.
    Type: Application
    Filed: August 2, 2016
    Publication date: August 9, 2018
    Inventors: Hidetaka NAKAYAMA, Kosuke SAWAI, Toshiharu SHINOKA, Shuhei TARA, Hirotsugu KUROBE