Patents by Inventor Geun Cha

Geun Cha 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: 20070128548
    Abstract: The present invention relates to a photosensitive composition comprising a triazine-based photoactive compound containing oxime ester. The photosensitive composition according to the present invention has good sensitivity, retention rate, mechanical strength, heat resistance, chemical resistance and developing durability since it contains, as photopolymerization initiator, a compound having an oxime ester group and a triazine group in one molecule and thus effectively absorbs UV radiation. Therefore, the photosensitive composition according to the present invention is advantageous not only in curing of materials for color filters, resin black matrixes, column spacers, overcoats and passivation films of liquid crystal displays, but also in high temperature process characteristics.
    Type: Application
    Filed: November 29, 2006
    Publication date: June 7, 2007
    Inventors: Sung Kim, Kyung Kim, Dong Choi, Jeong Yoon, Hee Park, Geun Cha, Keon Lee, Il Eok Kwon, Dong Oh, Jong Park, Xiang Li, Han Kim, Min Lim, Chang Cho
  • Publication number: 20070048448
    Abstract: Disclosed is a method of forming a pattern by means of coatings containing an ionic component having a positive or negative electric charge using electrostatic attraction force and/or repulsion force. In the method, it is possible to significantly improve precision and efficiency of the pattern formation.
    Type: Application
    Filed: August 15, 2006
    Publication date: March 1, 2007
    Inventors: Dae Kim, Ji Kim, Dong Shin, Dong Choi, Kyung Choi, Ho Ji, Geun Cha, Sung Kim
  • Publication number: 20070043283
    Abstract: A method and apparatus for non-invasively determining the concentration of a substance in blood, such as glucose, include a sample portion arranged for contacting an eye region of a user to obtain a tear fluid sample, a sensor in communication with the sample portion for generating a signal related to the tear substance concentration, and a processor in communication with the sensor for determining a blood substance concentration corresponding to the tear substance concentration.
    Type: Application
    Filed: October 20, 2006
    Publication date: February 22, 2007
    Applicant: EYELAB GROUP, LLC
    Inventors: Bruce Cohan, Geun Cha, Mark Meyerhoff, Hakhyun Nam, Donald Gillespie, Gang Cui, Jong Kim, Zvi Flanders
  • Publication number: 20060175205
    Abstract: Disclosed herein is a method for measuring blood glucose levels, using an electrochemical biosensor provided with a converse-type thin-layer electrochemical cell. The electrochemical cell comprising: a working electrode formed on a flat insulating substrate; an auxiliary electrode formed on a separate flat insulating substrate so as to face the working electrode; a fluidity-determining electrode, formed at a predetermined distance from the working electrode on the flat insulating substrate used for the working electrode or the auxiliary electrode; an adhesive spacer, provided with a sample-introducing part having a micro-passage, for spatially separating the working electrode and the auxiliary electrode by being interposed therebetween; an electrode connector, printed with a thick conductive material on a portion of the auxiliary electrode, for three-dimensionally connecting the working electrode to the auxiliary electrode; and a reagent layer containing an electron transfer mediator and an oxidation enzyme.
    Type: Application
    Filed: January 31, 2006
    Publication date: August 10, 2006
    Inventors: Gang Cui, Jae Yoo, Moon Kim, Ju Kim, Joung Lee, Keun Kim, Hakhyun Nam, Geun Cha
  • Publication number: 20060155215
    Abstract: Disclosed herein is a vacuum assisted auto-lancing device. The device includes a housing (200) having a body (210) which has a lever hole. An actuating lever (300) includes an actuating switch (310) seated on the lever hole and having first and second actuating steps, a switch cap (320), and a switch cover (330). The device also includes a holding unit (400) having a first stem (410), a second stem (430), and a stem cap (450). A trigger (500) has a first trigger unit activated by the first actuating step, and a second trigger unit activated by the second actuating step. A lancet holder (524) holding a lancet (522) is secured to an end of the first trigger unit. The device includes a blood collecting unit (600) having an adjusting screw, an adjusting slider, and an end cap, and a vacuum unit (700) having a plunger and a body cap.
    Type: Application
    Filed: February 20, 2004
    Publication date: July 13, 2006
    Inventors: Eun Cha, Mi Sook Park, Gang Cui, Hak Nam, Geun Cha