Patents by Inventor Min Seo

Min Seo 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: 12012537
    Abstract: The present invention relates to a fluorescent nanodiamond preparing method including a first operation of preparing nanodiamonds having an average particle diameter of 10 nm or less, a second operation of implanting plasma ions into the nanodiamonds, a third operation of heat-treating the nanodiamonds implanted with the plasma ions under a vacuum or inert gas atmosphere, a fourth operation of oxygen treatment of the heat-treated nanodiamonds under a gas atmosphere including oxygen to oxidize the surfaces of the nanodiamonds, a fifth operation of acid-treating the oxygen-treated nanodiamonds, a sixth operation of centrifuging and cleaning the acid-treated nanodiamonds, and a seventh operation of drying the cleaned nanodiamonds, wherein, in the second operation, the plasma ions are implanted at an incident ion dose of 1013 ions/cm2 or more and 1020 ions/cm2 or less.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: June 18, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seung Hee Han, Sung Ju Han, Min Seo, Min Gyeong Cho
  • Publication number: 20210371742
    Abstract: The present invention relates to a fluorescent nanodiamond preparing method including a first operation of preparing nanodiamonds having an average particle diameter of 10 nm or less, a second operation of implanting plasma ions into the nanodiamonds, a third operation of heat-treating the nanodiamonds implanted with the plasma ions under a vacuum or inert gas atmosphere, a fourth operation of oxygen treatment of the heat-treated nanodiamonds under a gas atmosphere including oxygen to oxidize the surfaces of the nanodiamonds, a fifth operation of acid-treating the oxygen-treated nanodiamonds, a sixth operation of centrifuging and cleaning the acid-treated nanodiamonds, and a seventh operation of drying the cleaned nanodiamonds, wherein, in the second operation, the plasma ions are implanted at an incident ion dose of 1013 ions/cm2 or more and 1020 ions/cm2 or less.
    Type: Application
    Filed: May 13, 2021
    Publication date: December 2, 2021
    Inventors: Seung Hee HAN, Sung Ju HAN, Min SEO, Min Gyeong CHO
  • Publication number: 20070165295
    Abstract: A filter having a high transmittance is disclosed. The filter comprises a substrate having a first surface and a second surface, and a periodic or random array of through-holes formed so as to pass through the first surface and the second surface. The through-hole has a size of subwavelength at a range of infrared and terahertz wave. Here, transmission resonance characteristic of incident light on the first surface is controlled by a shape of the through-hole.
    Type: Application
    Filed: July 25, 2006
    Publication date: July 19, 2007
    Applicant: Seoul National University Industry Foundation
    Inventors: Dae-Sik Kim, Sae Jeoung, Joong Lee, Min Seo
  • Publication number: 20070131164
    Abstract: Disclosed is an electroless metal film-plating system. While polyimide film is continuously fed from a roll, a series of wetting processes, including a degreasing process, an etching process, a neutralizing process, a coupling process, a catalyst-adding process, an undercoating process, and a plating process are conducted, in order, so as to plate one or both surfaces of the film with a conductive metal, followed by drying the conductive metal-plated film and taking up the plated film into a roll. A wetting process, in which the film passes through a liquid solution and is repetitively immersed in and drawn from a washing solution, is applied to all process parts, several parts notwithstanding, to produce a bilayer structure FCCL exhibiting superior physical properties such as peel strength. Also, after immersion in liquid in each process, the liquid is removed using wringing rollers so as to coat the material of interest at a uniform thickness.
    Type: Application
    Filed: February 15, 2006
    Publication date: June 14, 2007
    Applicant: D.M.I TECH CO., LTD.
    Inventors: Myung Park, Woon Kim, Min Seo
  • Publication number: 20070054119
    Abstract: The present invention generally relates to systems and methods of forming particles and, in certain aspects, to systems and methods of forming particles that are substantially monodisperse. Microfluidic systems and techniques for forming such particles are provided, for instance, particles may be formed using gellation, solidification, and/or chemical reactions such as cross-linking, polymerization, and/or interfacial polymerization reactions. In one aspect, the present invention is directed to a plurality of particles having an average dimension of less than about 500 micrometers and a distribution of dimensions such that no more than about 5% of the particles have a dimension greater than about 10% of the average dimension, which can be made via microfluidic systems. In one set of embodiments, at least some of the particles may comprise a metal, and in certain embodiments, at least some of the particles may comprise a magnetizable material.
    Type: Application
    Filed: March 3, 2006
    Publication date: March 8, 2007
    Inventors: Piotr Garstecki, Douglas Weibel, Irina Gitlin, Shoji Takeuchi, Shengqing Xu, Zhihong Nie, Min Seo, Patrick Lewis, Eugenia Kumacheva, Howard Stone, George Whitesides
  • Publication number: 20060147744
    Abstract: Disclosed is a process for a conductive metal plated polyimide substrate. The process for a conductive metal plated polyimide substrate comprises a) etching surface of the polyimide film with KOH, mixed solution of ethylene glycol and KOH, or mixed solution of CrO3 and H2SO4, b) coupling the etched surface of the polyimide film with a coupling agent, c) absorbing a catalyst on the polyimide film, d) plating a first conductive metal on the polyimide film which the catalyst was absorbed without applying current, to form a first conductive metal thin film, and e) plating a second conductive metal on the first conductive metal thin film with applying current, to form a second conductive metal thin film.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 6, 2006
    Inventors: Min Seo, Woon Kim, Jae Kim
  • Publication number: 20060081122
    Abstract: Dual capacity compressor including a power generating part (20) having a reversible motor (21, 22) and a crank shaft (23) inserted in the motor (21, 23), a compression part (30) having a cylinder (32), a piston (31), and a connecting rod (33), a crank pin (110) in an upper part of the crank shaft (23) eccentric to an axis of the crank shaft, an eccentric sleeve (120) rotatably fitted to the crank pin (110), and the connecting rod (33) respectively, a key member (130) for positive fastening of the eccentric sleeve (120 ) to the crank pin (110) in all rotation directions of the motor, and an eccentric mass (200) provided to the eccentric sleeve (120) for rotating the eccentric sleeve (120) around the crank pin (110), thereby preventing relative motion between components that sustain the eccentricity, and permitting a smooth motion between the components.
    Type: Application
    Filed: October 31, 2003
    Publication date: April 20, 2006
    Applicant: LG Electronics Inc.
    Inventors: Cheal Choi, Dal Kang, Chul Rho, Min Seo, Kee Kim, June Hur
  • Publication number: 20050226932
    Abstract: The present invention relates to a pharmaceutical composition containing as an active ingredient, itraconazole. More particularly, the present invention relates to the pharmaceutical composition comprising itraconazole, a polylactic acid derivative, and an amphiphilic block copolymer. The polylactic acid derivative may be combined with a metal ion at the carboxylic acid terminal, and the amphiphilic block copolymer forms micelles or nano-particles in an aqueous medium.
    Type: Application
    Filed: February 1, 2005
    Publication date: October 13, 2005
    Inventors: Hye-Jeong Yoon, Min Seo, Jeong-Kyung Kim
  • Publication number: 20050201972
    Abstract: The present invention relates to an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block with a terminal hydroxyl group wherein the terminal hydroxyl group of the hydrophobic bock is substituted with a tocopherol or cholesterol group. It also relates to polymeric compositions capable of forming stable micelles in an aqueous solution, comprising the amphiphilic block copolymer and a polylactic acid derivative wherein one or more ends of the polylactic acid are covalently bound to at least one carboxyl group.
    Type: Application
    Filed: October 7, 2004
    Publication date: September 15, 2005
    Inventors: Min Seo, Bong Kim, In Choi, Myung Shim, Sa-Won Lee, Myung-Han Hyun, Jeong-Il Yu, Dong-Hoon Chang, Hye-Jeong Yoon, Jeong-Kyung Kim