Patents by Inventor Mi Young Ryu

Mi Young Ryu 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: 11059947
    Abstract: A method for producing a polymer film is disclosed herein. The method is capable of effectively forming a polymer film on a substrate, where the polymer film comprises highly aligned block copolymers without orientation defects, coordination number defects, distance defects, and the like. The method can be applied to production of various patterned substrates.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 13, 2021
    Inventors: Hyung Ju Ryu, Se Jin Ku, Mi Sook Lee, Sung Soo Yoon, No Jin Park, Jung Keun Kim, Je Gwon Lee, Eun Young Choi
  • Patent number: 10668182
    Abstract: The present invention relates to a method for preparing a medical material for replacing a hard tissue defect and a medical material produced therefrom. More specifically, in the present invention, powders of bioactive glass are press-molded, and are then subjected to a first heat treatment at a relatively low temperature below the glass transition temperature of bioactive glass. Then, the resultant is processed into a desired shape and then subjected to a second heat treatment at a temperature higher than the glass transition temperature of bioactive glass. Accordingly, the present invention provides a medical material which can be customized to a desired shape of a hard tissue defect in a living body and minimize thermal shock, and which is capable of exhibiting a bone fusion property, while overcoming the low compressive strength drawback of hydroxyapatite, which is an existing hard tissue replacement material currently in use.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 2, 2020
    Assignee: Bioalpha Corporation
    Inventors: Mi Young Ryu, Sung Nam Park, Jun Hyuk Seo, Hyun Seung Ryu
  • Patent number: 10293081
    Abstract: The present invention relates to a crystallized glass ceramic comprising 30 wt % to 40 wt % of each of CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7); a crystallized glass ceramic composition comprising CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7) in a predetermined weight ratio; a bone graft material comprising the glass ceramic; and an intervertebral spacer or medical device for replacement of bone tissue, which is manufactured using the bone graft material.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 21, 2019
    Assignee: BIOALPHA CORPORATION
    Inventors: Mi Young Ryu, Sung Nam Park, Jun Hyuk Seo, Hyun Seung Ryu
  • Publication number: 20180339082
    Abstract: The present invention relates to a polyether ether ketone (PEEK)-based material comprising hydroxyapatite (HA) particles which are embedded discontinuously on the surface thereof, a method of preparing the PEEK-based material, and a bone graft comprising the PEEK-based material.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 29, 2018
    Inventors: Mi Young Ryu, Jun Hyuk Seo, Hyun Seung Ryu, Nam Yul Cho, Hak Su Jang
  • Publication number: 20180256779
    Abstract: The present invention relates to a method for preparing a medical material for replacing a hard tissue defect and a medical material produced therefrom. More specifically, in the present invention, powders of bioactive glass are press-molded, and are then subjected to a first heat treatment at a relatively low temperature below the glass transition temperature of bioactive glass. Then, the resultant is processed into a desired shape and then subjected to a second heat treatment at a temperature higher than the glass transition temperature of bioactive glass. Accordingly, the present invention provides a medical material which can be customized to a desired shape of a hard tissue defect in a living body and minimize thermal shock, and which is capable of exhibiting a bone fusion property, while overcoming the low compressive strength drawback of hydroxyapatite, which is an existing hard tissue replacement material currently in use.
    Type: Application
    Filed: August 19, 2016
    Publication date: September 13, 2018
    Inventors: Mi Young Ryu, Sung Nam Park, Jun Hyuk Seo, Hyun Seung Ryu
  • Publication number: 20180028716
    Abstract: The present invention relates to a crystallized glass ceramic comprising 30 wt % to 40 wt % of each of CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7); a crystallized glass ceramic composition comprising CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7) in a predetermined weight ratio; a bone graft material comprising the glass ceramic; and an intervertebral spacer or medical device for replacement of bone tissue, which is manufactured using the bone graft material.
    Type: Application
    Filed: May 27, 2015
    Publication date: February 1, 2018
    Inventors: Mi Young RYU, Sung Nam PARK, Jun Hyuk SEO, Hyun Seung RYU
  • Patent number: 9675731
    Abstract: The present invention relates to a bone graft composition and a preparation method thereof, and more particularly to a bone graft composition having excellent physical properties, which comprises a hydrogel comprising a combination of specific amounts of poloxamer and HPMC, and calcium phosphate compound particles, and a preparation method thereof.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: June 13, 2017
    Assignee: Bioalpha Corporation
    Inventors: Mi Young Ryu, Nam Yul Cho, Jun Hyuk Seo, Hyun Seung Ryu, So Myoung Lee
  • Publication number: 20160051725
    Abstract: The present invention relates to a bone graft composition and a preparation method thereof, and more particularly to bone graft composition having excellent physical properties, which comprises a hydrogel comprising a combination of specific amounts of poloxamer and HPMC, and calcium phosphate compound particles, and a preparation method thereof.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 25, 2016
    Inventors: Mi Young Ryu, Nam Yul Cho, Jun Hyuk Seo, Hyun Seung Ryu
  • Patent number: 8277848
    Abstract: Disclosed herein is a method for preparing an aqueous solution of high-concentration calcium phosphate, the method comprising the steps of: preparing an acidic aqueous solution using an acidic chelating agent; and dissolving a calcium phosphate-based compound in the acidic aqueous solution, and then adding a pH-adjusting agent to the acidic aqueous solution to adjust the pH of the acidic aqueous solution. The disclosed aqueous solution does not form a precipitate after neutralization so that it can be used in various calcium-containing products, including foods, drugs, or quasi-drugs.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: October 2, 2012
    Assignee: Bioalpha Inc.
    Inventors: Hyun Seung Ryu, Mi Young Ryu, Jun Hyuk Seo, Gyu Dong Jang, Baek Il Kim
  • Publication number: 20120183625
    Abstract: Disclosed herein is a method for preparing an aqueous solution of high-concentration calcium phosphate, the method comprising the steps of: preparing an acidic aqueous solution using an acidic chelating agent; and dissolving a calcium phosphate-based compound in the acidic aqueous solution, and then adding a pH-adjusting agent to the acidic aqueous solution to adjust the pH of the acidic aqueous solution. The disclosed aqueous solution does not form a precipitate after neutralization so that it can be used in various calcium-containing products, including foods, drugs, or quasi-drugs.
    Type: Application
    Filed: July 19, 2011
    Publication date: July 19, 2012
    Applicant: BIOALPHA INC.
    Inventors: Hyun Seung RYU, Mi Young RYU, Jun Hyuk SEO, Gyu Dong JANG, Baek Il KIM
  • Publication number: 20070170488
    Abstract: A capacitor of a semiconductor device and a method for fabricating the same may be provided. The method may include forming an interlayer insulation layer, an etch stop layer, and/or a sacrificial insulation layer on a semiconductor substrate, patterning the interlayer insulation layer, the etch stop layer, and/or the sacrificial insulation layer to form a contact hole exposing a desired or predetermined region of the semiconductor substrate, filling the contact hole to form a contact plug, removing the sacrificial insulation layer to expose an upper portion of the contact plug, and/or forming a dielectric layer and/or a top electrode on the exposed upper portion of the contact plug.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 26, 2007
    Inventors: Mi-Young Ryu, Hee-Il Chae