Patents by Inventor Seong-geun Oh

Seong-geun Oh 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: 20240083351
    Abstract: A lighting device includes a light guide plate configured to guide and diffuse a light from a light source, and a garnish body including a lighting area to which the diffused light is radiated, wherein the light guide plate is disposed at a predetermined angle with respect to the garnish body.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 14, 2024
    Inventors: Jun Geun Oh, Min Ha Lee, Kyu Rok Kim, Byoung Wook Kim, Hoe Won Jung, Ho Sung Shin, Seong Cheon Cho
  • Publication number: 20100022791
    Abstract: The present invention relates to an organic-transition metal complex which can safely and reversibly store hydrogen in a high capacity, and a process for preparing the same. In order to achieve the objects, the hydrogen storage material according to the invention comprises a complex generated by combination of an organic substance containing a hydroxyl (—OH) group(s) with a transition metal containing compound, which can more effectively store hydrogen with more than one transition metal being bonded per molecule. Examples of the organic substances containing hydroxyl (—OH) group(s) include alkyl derivatives such as ethylene glycol, trimethylene glycol and glycerol, and hydroxyl-containing aryl derivatives such as fluoroglucinol. As the transition metal, titanium (Ti), vanadium (V) and scandium (Sc), which can make Kubas binding, may be mentioned.
    Type: Application
    Filed: September 12, 2007
    Publication date: January 28, 2010
    Applicants: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION, HANWHA CHEMICAL CORPORATION, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Jisoon Ihm, Hoonkyung Lee, Hyo Jin Jeon, Jong Sik Kim, Dong Ok Kim, Hee bock Yoon, Jeasung Park, Seong-Geun Oh, Chul Oh
  • Patent number: 7271236
    Abstract: A preparation method of a polyester resin includes: under predetermined depolymerization conditions, mixing a polyester resin, a resin dissolvent and a polycondensation catalyst to depolymerize the polyester resin and form a first reaction mixture; adding a first monomer to the first reaction mixture to form a second reaction mixture; under predetermined polymerization conditions, adding a second monomer to the second reaction mixture to polymerize the depolymerized polyester resin and form a third reaction mixture; and adding a neutralizing agent to neutralize the polymerized reaction product of the third reaction mixture.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: September 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-woo Kim, Kyung-yol Yon, Young-ho Lee, Seong-geun Oh
  • Publication number: 20060115759
    Abstract: A preparation method of a polyester particle dispersion includes: under predetermined depolymerization conditions, mixing a polyester binder resin, a resin dissolvent and a polycondensation catalyst to depolymerize the polyester resin and form a first reaction mixture; adding a first monomer to the first reaction mixture to form a second reaction mixture; under predetermined polymerization conditions, adding a second monomer to the second reaction mixture to polymerize the depolymerized polyester resin and form a third reaction mixture; adding a neutralizing agent to neutralize the polymerized reaction product of the third reaction mixture; (e) adding a reverse-neutralizing agent to reverse neutralize the neutralized mixture; and adding a mixture of an anionic surfactant and a nonionic surfactant to the reverse-neutralized mixture.
    Type: Application
    Filed: September 16, 2005
    Publication date: June 1, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang-woo Kim, Young-ho Lee, Seong-geun Oh
  • Publication number: 20060063088
    Abstract: A preparation method of a polyester resin includes: under predetermined depolymerization conditions, mixing a polyester resin, a resin dissolvent and a polycondensation catalyst to depolymerize the polyester resin and form a first reaction mixture; adding a first monomer to the first reaction mixture to form a second reaction mixture; under predetermined polymerization conditions, adding a second monomer to the second reaction mixture to polymerize the depolymerized polyester resin and form a third reaction mixture; and adding a neutralizing agent to neutralize the polymerized reaction product of the third reaction mixture.
    Type: Application
    Filed: September 16, 2005
    Publication date: March 23, 2006
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Sang-woo Kim, Kyung-yol Yon, Young-ho Lee, Seong-geun Oh
  • Patent number: 6660058
    Abstract: The present invention relates to the preparation of nanoparticles of silver (Ag) and silver alloyed with other elements such as platinum (Pt), palladium (Pd), gold (Au), aluminum (Al), cadmium (Cd) and sulfur (S) in surfactant solutions. The surfactant molecules have the intrinsic property to adsorb into the interface, which are formed between two different phases. Thus, the surfactant molecules would adsorb into the surface of nuclei in solution. The adsorbed surfactant molecules from the solution prevent the coalescence of particles and control the rate of particle growth. By choosing the proper kind and/or concentration of surfactants, the size of particles formed in solution can be controlled in nm scale.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: December 9, 2003
    Assignee: Nanopros, Inc.
    Inventors: Seong-Geun Oh, Sung-Chul Yi, Seung-Il Shin, Dae-Wook Kim, Sung-Hoon Jeong
  • Patent number: 6645276
    Abstract: A facilitated transport membrane with improved permeance and selectivity to alkene-based unsaturated hydrocarbons is provided. The facilitated transport membrane includes a solid state polymer electrolyte and additionally a non-volatile surfactant that enhances long-term operation stability. In preparing the facilitated transport membrane for separation of alkenes, a porous supporting membrane is coated with a solid polymer electrolyte layer having a non-volatile polymer, a non-volatile surfactant, and a salt of a transition metal capable of complexing selectively and reversibly with alkenes.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: November 11, 2003
    Assignee: Korea Institute of Science and Technology
    Inventors: Yong Soo Kang, Jong Ok Won, Bum Suk Jung, Hye Hun Park, Seong Geun Oh
  • Publication number: 20020162456
    Abstract: Disclosed is a novel facilitated olefin transport membrane with improved permeance and selectivity to alkene-based unsaturated hydrocarbons, which includes a solid state polymer electrolyte and additionally a non-volatile surfactant that remarkably enhances the long-term operation stability.
    Type: Application
    Filed: February 1, 2002
    Publication date: November 7, 2002
    Inventors: Yong Soo Kang, Jong Ok Won, Bum Suk Jung, Hye Hun Park, Seong Geun Oh