Patents by Inventor Min Ryu

Min Ryu 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: 20080157667
    Abstract: A method of manufacturing a soft mold to shape a barrier rib, a method of manufacturing a barrier rib and a lower panel, and a plasma display panel (PDP) including the same. The method of manufacturing the soft mold includes: providing a metal mold on which a barrier rib pattern is formed, by alternating channels and projections; disposing a polymer sheet opposite the metal mold; pressing the metal mold into the polymer sheet, to form the soft mold, which has an inverted image of the barrier rib pattern formed on the surface thereof; and releasing the soft mold from the metal mold.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 3, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: DONG-YOL YANG, Seung-Min Ryu, Suk-Hea Park, Jong-Seo Choi, Kwi-Seok Choi, Beom-Wook Lee
  • Publication number: 20080160868
    Abstract: A method of manufacturing barrier ribs of a plasma display panel (PDP), and a method of manufacturing a lower panel for the PDP. The method of manufacturing the barrier ribs for the PDP includes: preparing a mold to shape the barrier ribs, which has a patterned surface; filling a plurality of channels formed in the mold with a barrier rib material, to form barrier ribs; and compression bonding a dielectric sheet to the barrier ribs in the mold. Using a molding process, a barrier rib pattern having a desired shape can be precisely formed, and an electrode burying layer with a uniform thickness can be obtained.
    Type: Application
    Filed: December 26, 2007
    Publication date: July 3, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: DONG-YOL YANG, SEUNG-MIN RYU, SUK-HEE PARK, JONG-SEO CHOI, KWI-SEOK CHOI, BEOM-WOOK LEE
  • Patent number: 7393403
    Abstract: A self-dispersible coloring agent represented by formula (II) below is prepared by incorporating a hydrophilic group into a coloring agent through a reaction of a hydrophilic group-containing halide represented by formula (I) below and the coloring agent in the presence of a Lewis acid catalyst: X-L-R1??(I) (the coloring agent)-L-R1??(II) wherein L represents a single bond or —C(?O)—; R1 is selected from the group consisting of a substituted or unsubstituted C1-C20 alkyl group containing a hydrophilic group, a substituted or unsubstituted C6-C20 aryl group containing a hydrophilic group a substituted or unsubstituted C2-C20 heteroaryl group containing a hydrophilic group and a substituted or unsubstituted C7-C20 arylalkyl group containing a hydrophilic group; and X is one of: —F, —Br, —I and —Cl. may be obtained conveniently through a one-step process.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: July 1, 2008
    Assignee: Samsung Eletronics Co., Ltd.
    Inventors: Jong-in Lee, Seung-min Ryu, Su-aa Jung
  • Patent number: 7368008
    Abstract: An ink set, an inkjet recording apparatus including the ink set, and a method of forming an image using the ink set include a black ink composition comprising a first colorant, water, and a first alkyl ether and a color ink composition comprising a second colorant, water, and a second alkyl ether, wherein an amount of the first alkyl ether based on 100 parts by weight of the black ink composition is at most twice an amount of the second alkyl ether based on 100 parts by weight of the color ink composition. When using the ink set, an image of effective quality may be formed which has a reduced bleeding without decreasing an image density.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: May 6, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-kyoung Jung, Seung-min Ryu
  • Patent number: 7364597
    Abstract: A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; n is an integer from 1 to 3; and J is a linker. The metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-kyoung Jung, Seung-min Ryu, Kyung-hoon Lee
  • Publication number: 20080066644
    Abstract: An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which a kogation problem in a thermal inkjet printer can be decreased.
    Type: Application
    Filed: January 18, 2007
    Publication date: March 20, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Heung-sup Park, Seung-min Ryu, Hoe-jung Roh
  • Publication number: 20080057224
    Abstract: A method of manufacturing a thin film includes providing a metal organic precursor onto a substrate where the metal organic precursor is heated to a temperature of about 60° C. to about 95° C. and has a saturated vapor pressure of about 1 Torr to about 5 Torr. An oxidizing agent including oxygen for oxidizing the metal organic precursor is provided onto the substrate. The metal organic precursor and the oxidizing agent are chemically reacted to form the thin film including metal oxide. The thin film is easily available in a gate insulation layer of a gate structure, a dielectric layer of a capacitor, and similar circuit components.
    Type: Application
    Filed: April 25, 2007
    Publication date: March 6, 2008
    Inventors: Youn-Joung Cho, Jung-Ho Lee, Jun-Hyun Cho, Seung-Min Ryu, Kyoo-Chul Cho, Jung-Sik Choi
  • Publication number: 20070296786
    Abstract: A black ink composition includes a mixture of an azo metal complex dye having a good light fastness and water fastness and an adjective dye. The ink composition has a neutral black gradation, a high optical density and a good decap performance at a print head of an inkjet printer while printing. An inkjet cartridge for inkjet printing includes the black ink composition, and a recording apparatus for inkjet printing including the ink cartridge are also provided.
    Type: Application
    Filed: December 20, 2006
    Publication date: December 27, 2007
    Inventors: Cheol Ham, Seung-min Ryu, Hyo-keun Park
  • Publication number: 20070289487
    Abstract: An ink composition comprising a colorant, a solvent, a surfactant, and a defoaming agent is provided. The defoaming agent has a structure of Formula R1—X—(CH2CH2O)m-(CH CH3CH2O)n-R2 (I), in which, X is selected from the group consisting of COO, O, S, R3—N and R4(R5)—C; R1, R2, R3, R4, and R5 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group and a substituted or unsubstituted aralkyl group; m is an integer from 0 to 100; and n is a natural number from 1 to 100. The ink composition according to the exemplary embodiment exhibits low foaming properties in order to flow smoothly and has a good initial discharge capacity and less ink bleeding so that it is possible to achieve a high print quality during printing, and an ink cartridge including the same.
    Type: Application
    Filed: February 2, 2007
    Publication date: December 20, 2007
    Inventors: Cheol Ham, Seung-min Ryu
  • Publication number: 20070235063
    Abstract: A steam/water mixed dishwasher using steam and water together, and, more particularly, a dishwasher and dishwashing method of achieving improvement in washing performance and efficiency via direct steam injection to dishes. The dishwasher includes a body containing a dishwashing tub, at least one dish basket disposed in the dishwashing tub and adapted to receive dishes therein, a steam generator to generate steam by heating wash water, and steam injection nozzles to inject the steam generated from the steam generator. The steam injection nozzles are disposed at the same height as a lower surface of the dish basket. The dishwashing method includes injecting steam from a number of the plurality of steam injection nozzles by opening a number of the plurality of control valves, to thereby maintain an injection pressure of the steam generated from the steam generator.
    Type: Application
    Filed: November 8, 2006
    Publication date: October 11, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Hui Lee, Gyoung Rok Kim, Jung Chan Ryu, So Jung Imm, Dong Yol Yang, Joong Myeon Bae, Seung Min Ryu, Chong Bae Yun, Sung Kwang Lim, Tae Hyun Ko, Hyun Jo, Hyun-Ho Kim, Hyang Jun Lee
  • Patent number: 7223355
    Abstract: A 2-methoxyphenol derivative and an ink composition containing the 2-methoxyphenol derivative, an aqueous medium, and a colorant enhance light resistance by absorbing ultraviolet (UV) light, provide wettability and stabilize a colorant. The ink composition prepared using the 2-methoxyphenol derivative also has improved light resistance, wettability and stabilizes a colorant and does not require an additional light-resistant agent.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: May 29, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-kyoung Jung, Soung-min Ryu
  • Patent number: 7223805
    Abstract: A 2-methoxyphenol derivative may be used as an ultraviolet (UV) light absorbing dispersant and, an ink composition may include the 2-methoxyphenol derivative as a light-resistant dispersant. The 2-methoxyphenol derivative absorbs UV light and thus provides light resistance to outputs. The 2-methooxyphenol derivative also improves dispersibility. When the 2-methoxyphenol derivative is used to prepare an ink composition, the ink composition has improved dispersibility and light resistance, and there is no need to add a light-resistant additive.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: May 29, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-Kyoung Jung, Seung-min Ryu
  • Patent number: 7205412
    Abstract: An antibiotic additive and an ink composition including the antibiotic additive include a compound produced by binding of an antibiotic substance having the following formula (I) to a predetermined additive via a chemical reaction. The ink composition includes a colorant, a solvent and an antibiotic additive produced by binding of an antibiotic substance having the following formula (I) to a predetermined additive via a chemical reaction.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: April 17, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-min Ryu, Jae-hwan Kim, Jong In Lee, Dae hee Lee
  • Publication number: 20070081061
    Abstract: An inkjet ink composition including about 100 parts by weight of a liquid vehicle (such as water), about 1 to about 35 parts by weight of a colorant including first and second dyes, and about 0.1 to about 130 parts by weight of an organic solvent, and a weight of the first dye soluble in 100 parts by weight of water under standard state conditions is more than 1.5 times an initial weight of the first dye contained in 100 parts by weight of the inkjet ink composition and a weight of the second dye soluble in 100 parts by weight of water under the standard state conditions is less than 1.5 times an initial weight of the second dye contained in 100 parts by weight of the inkjet ink composition; and a multi-color inkjet ink set including the inkjet ink composition.
    Type: Application
    Filed: August 29, 2006
    Publication date: April 12, 2007
    Inventors: Seung-min Ryu, Yeon-kyoung Jung
  • Publication number: 20070064073
    Abstract: A multi-color inkjet ink set includes a first ink composition including a first colorant and a heterocyclic amine compound, and a second ink composition include a second colorant having an, in which the acid moiety of the second colorant within the second ink composition reacts with the heterocyclic amine compound within the first ink composition to form a precipitate to prevent the second colorant from moving on a printing medium.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 22, 2007
    Inventors: Seung-min RYU, Yeon-kyoung Jung
  • Publication number: 20070040881
    Abstract: An inkjet ink composition includes water, a colorant, a cyclic amide compound, and a compound of formula I below; an ink cartridge including the same; and an inkjet recording apparatus including the ink cartridge.
    Type: Application
    Filed: August 1, 2006
    Publication date: February 22, 2007
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Cheol Ham, Seung-min Ryu
  • Publication number: 20070035598
    Abstract: An inkjet ink composition, an inkjet printer cartridge including the ink composition and an inkjet recording apparatus including the ink cartridge including the ink composition, the inkjet ink composition including a colorant, water, and an additive, the additive including at least one media-philic additive in an amount in a range of about 0.1 to about 35 parts by weight based on 100 parts by weight of the ink composition, and an amount of the media-phobic additive is in a range of about 1 to about 25 parts by weight based on 100 parts by weight of the ink composition.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 15, 2007
    Inventors: Seung-min RYU, Yeon-kyoung Jung
  • Patent number: 7173114
    Abstract: A lightfast colorant and a lightfast ink composition including the lightfast colorant utilize a lightfast colorant that is derived by covalently binding a cinnamate derivative and a conventional colorant. The lightfast colorant improves storage stability as well as lightfastness when added to an ink composition.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: February 6, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-hoon Lee, Seung-min Ryu, Yeon-Kyoung Jung
  • Patent number: 7164036
    Abstract: A benzophenone compound, and an ink composition that includes the benzophenone compound can absorb UV light, and thus improve lightfastness of images produced with the ink composition containing the compound. Due to the function of the benzophenone compound as a lightfast dispersant, the dispersibility and the lightfastness of an ink composition are improved with the benzophenone compound, without requiring an additional lightfastness enhancer.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: January 16, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-hoon Lee, Seung-min Ryu, Yeon-kyoung Jung
  • Publication number: 20070002111
    Abstract: An ink composition including a colorant, a cyclic amide compound, a cyclic dicarbonyl compound, and water, an ink cartridge including the same, and an inkjet recording apparatus including the same. The ink composition maintains high solubility and stability of a colorant, even when used in small amounts, thereby enhancing not only a storage stability but also a fusing property of the ink composition on a print medium, and thus reinfroces a rubbing resistance of the ink composition on the print medium. The ink composition is easily dried on the print medium, and thus bleeding between colors is minimized, thereby improving printed image quality because little or solvent having a high boiling point is used in the ink composition.
    Type: Application
    Filed: May 2, 2006
    Publication date: January 4, 2007
    Inventors: Hee-jung ROH, Seung-min Ryu