Patents by Inventor Jeong-In Yoon

Jeong-In Yoon 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: 6791003
    Abstract: A dual drug containing adhesive transdermal drug delivery system comprising: a support layer, a first drug containing adhesive layer and a second drug containing adhesive layer each of said layers having a proximal and distal surface wherein each layer is positioned adjacent to the other with each layer having its distal surface laminated to said support layer, and a peelable backing layer positioned over and laminated to the proximal surface of said first and second adhesive layers is disclosed.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: September 14, 2004
    Assignee: Samyang Corporation
    Inventors: Young Kweon Choi, Hyun Suk Yu, Hye Jeong Yoon, Ho Chin Kim
  • Patent number: 6723337
    Abstract: The invention herein relates to a transdermal drug delivery systern for anti-Inflammatory analgesic. agent comprising diclofenac diethylammonium salt, wherein a backing film (1), a matrix layer (2) containing active ingredients, a release liner (3) which is removed before application onto the skin are laminated therein. Mome particularly, the invention herein relates to a transdermal drug delivery system for anti-inflammatory analgesic agent comprising diclofenac diethylammonum salt, wherein the transdermal penetration and adhesion of the patch to the body are enhanced by means of a matrix layer which comprises a diclofenac diethylammonum salt as active ingredient in addition to acrylic polymer as adhesive constituent, non-ionic surfacant as absorption enhancer, terpene and dissolution assistant, and the volatile and non-volatile constituents of the composition arc separately applied therein for significantly reducing the manufacturing time thereof.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: April 20, 2004
    Assignee: Samyang Corporation
    Inventors: Jin Deog Song, Chul Min Park, Young Kwon Choi, Heon Han Lee, Yong Ho Shim, Hye Jeong Yoon
  • Publication number: 20030170295
    Abstract: The present invention relates to a hydrogel composition for transdermal drug delivery, more specifically to a hydrogel composition for transdermal drug delivery containing acrylate polymers like acrylic acid polymer, methacrylic acid polymer, alkyl acrylate polymer, alkyl methacrylate polymer or copolymers thereof as compatibilizers which enable both hydrophilic and lipophilic permeation enhancers to be applicable in the hydrogel composition in order to effectively control skin penetration of drugs.
    Type: Application
    Filed: November 15, 2002
    Publication date: September 11, 2003
    Inventors: Ho-Jin Kim, Hye-Jeong Yoon
  • Patent number: 5876299
    Abstract: Disclosed is an infinitely variable speed transmission, including: a speed changing mechanism for primarily changing power from an engine into a necessary speed ratio, including: a sun gear disposed on an input shaft for transmitting power generated from the engine; a plurality of planet rollers which are disposed around the sun gear at a predetermined distance from each other, each planet roller having a truncated cone-shape and being revolvable around the sun gear and rotatable about its axis; a carrier for connecting the planet rollers with each other; a movable ring disposed to be circumscribed on outer tangential line of the planet rollers and movable by moving member along a longitudinal direction of the planet rollers to change a rotational speed of the planet rollers by varying an operating diameter so that an output speed outputted through the carriers connecting the planet roller with each other can be varied; and a second speed changing mechanism for changing the output speed from the speed changin
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: March 2, 1999
    Assignee: Daewoo Motor Co., Ltd.
    Inventors: Man Shik Kim, Jeong Cheol Kim, Tae Kwan Eum, Young Deok Choi, Kyeong Hwan Kim, In Wook Yeo, Jeong Yoon Kim
  • Patent number: 5741511
    Abstract: The present invention is to provide a method and a transdermal drug delivery device for treating erectile dysfunction which comprises a patch containing pharmaceutically active ingredient and being directly apply to the male glans penis and its support and the rings for constricting the base part of the penis to aid the erection. The patch according to the present invention may be divided into two types, i.e. a cylinder type patch and a multi-reservoir type patch. The transdermal drug delivery patch device of the present invention is painless and safely to use and may be effectively produced and maintained erection of the penis without the adverse side effects and with a high degree of patient acceptability in the case of male impotence.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: April 21, 1998
    Assignee: Sam Yang Co., Ltd.
    Inventors: Hun Han Lee, Joong Woong Cho, Choul Young Kim, Chaul Min Pai, Jin Deog Song, Chul Min Park, Hye Jeong Yoon, Yoon Yeo, Jae Seung Paick
  • Patent number: 5297827
    Abstract: This invention relates to a device for coupling lengths of metal pipe, too hard or to thin for cutting a screw, by inserting a screwed socket in one end of the pipe to be joined with another, expanding that part of the pipe, and joining it airtight with another coupling.A metal pipe coupling of the present invention has a screw section and a tightening section, and is shaped so as to be suitable to the way of coupling metal pipes by insertion of one end of a metal pipe in the coupling, expanding the fastening section of the metal pipe so that the joining of the outside circumference of the pipe and the inside circumference of the coupling should be airtight, and thereafter by joining with another joining material.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: March 29, 1994
    Inventor: Jeong-Yoon Choi