Patents by Inventor Jun-hoe Cha

Jun-hoe 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).

  • AMPHOTERIC FLUORESCENT SUBSTANCE CAPABLE OF BEING ATTACHED TO BIOMATERIALS
    Publication number: 20230098702
    Abstract: The present invention provides an amphoteric fluorescent substance capable of being attached to biomaterials.
    Type: Application
    Filed: February 10, 2020
    Publication date: March 30, 2023
    Inventors: Jun-Hoe CHA, Hak-Soo CHOI
  • Electrically conductive polymer, sensor using the same, and method for detecting target molecule using the sensor
    Patent number: 7341759
    Abstract: A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided. The electrically conductive polymer has the following formula: where m is 1, 2, or 3; R is a hydroxysuccinimidyl group, a hydroxyphthalimidyl group, or a pentafluorophenolyl group; and n is zero or an integer.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: March 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-hoe Cha, Young Choi, Jung-im Han, Geun-bae Lim
  • Conductive compound, electrode and sensor containing the same, and target molecule detection method using the sensor
    Patent number: 7129363
    Abstract: A conductive compound of formula (I) below, an electrode coated with the conductive compound, a sensor including the electrode, and a target molecule detection method using the sensor are provided: wherein Y is a carbonyl or —NH—; R is one of H, OH, a leaving group, and a probe group; l is an integer from 3 to 6; m is an integer from 1 to 4; and n is an integer from 0 to 3.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: October 31, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-im Han, Jun-hoe Cha, Geun-bae Lim
  • Electrically conductive polymer, sensor using the same, and method for detecting target molecule using the sensor
    Patent number: 6987164
    Abstract: A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided. The electrically conductive polymer has the following formula: where m is 1, 2, or 3; R is a hydroxysuccinimidyl group, a hydroxyphthalimidyl group, or a pentafluorophenolyl group; and n is zero or an integer.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: January 17, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-hoe Cha, Young Choi, Jung-im Han, Geun-bae Lim
  • Novel electrically conductive polymer, sensor using the same, and method for detecting target molecule using the sensor
    Publication number: 20050208579
    Abstract: A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided. The electrically conductive polymer has the following formula: where m is 1, 2, or 3; R is a hydroxysuccinimidyl group, a hydroxyphthalimidyl group, or a pentafluorophenolyl group; and n is zero or an integer.
    Type: Application
    Filed: May 23, 2005
    Publication date: September 22, 2005
    Inventors: Jun-hoe Cha, Young Choi, Jung-im Han, Geun-bae Lim
  • Conductive compound, electrode and sensor containing the same, and target molecule detection method using the sensor
    Publication number: 20040175747
    Abstract: A conductive compound of formula (I) below, an electrode coated with the conductive compound, a sensor including the electrode, and a target molecule detection method using the sensor are provided: 1
    Type: Application
    Filed: March 1, 2004
    Publication date: September 9, 2004
    Inventors: Jung-im Han, Jun-hoe Cha, Geun-bae Lim
  • Novel electrically conductive polymer, sensor using the same, and method for detecting target molecule using the sensor
    Publication number: 20030187182
    Abstract: A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided.
    Type: Application
    Filed: March 6, 2003
    Publication date: October 2, 2003
    Inventors: Jun-Hoe Cha, Young Choi, Jung-Im Han, Geun-Bae Lim
  • Ink composition for ink-jet printers
    Patent number: 6582501
    Abstract: An ink composition for ink-jet printers is provided which includes a chromophore, a solvent, a co-solvent, a humectant, a surfactant, a viscosity adjuster and an additive. The additive is a nitrogen-containing heterocyclic compound. This nitrogen-containing heterocyclic compound has the hydroxy groups which improve miscibility with water, thereby preventing clogging of nozzles during use. The present invention increases the affinity for dye used as a chromophore and for the hydroxy groups of paper after discharging of ink, which allows the chromophore to easily fix on the paper, thus enhancing smearfastness of the ink composition after printing.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: June 24, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-min Ryu, Seung-soon Jang, Jun-hoe Cha