Patents by Inventor Il Hyuk Kim

Il Hyuk Kim 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: 11964658
    Abstract: A vehicle restart control apparatus includes a processor configured to generate an override torque according to the environment information of the host vehicle when the vehicle is restarted after stopping; and a storage configured to store data and algorithms driven by the processor.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: April 23, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Jeong Ki Hong, Kyung Joo Bang, Kyeong Eun Kim, Dong Hyuk Kim, Il Hwan Kim
  • Patent number: 11941637
    Abstract: Disclosed is a method of processing item sales information by an electronic apparatus including acquiring a purchase request including item information related to an item selected by a user and information related to a payment means, providing a purchase response including approval information corresponding to the purchase request before proceeding with payment through the payment means in response to the purchase request when the information related to the payment means satisfies a first condition, transmitting a release request for the item to a first server; and requesting payment for at least some of an amount corresponding to one or more purchase requests related to the payment means according to an arrival of settlement timing corresponding to the payment means.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: March 26, 2024
    Assignee: Coupang Corp.
    Inventors: Zee Young Min, Ki Hyun Jeong, Il Hyun Seo, Hyun Ju Cho, Jin Hwan Kim, Hyun Yong Jung, Min Yong Yuk, Ho Hyun Lim, Jin Hyuk Kim
  • Patent number: 11942640
    Abstract: Provided is a negative electrode active material for a lithium secondary battery which includes: a silicon-silicon oxide-magnesium silicate composite comprising a silicon oxide (SiOx, 0<x?2) matrix; and silicon (Si) crystal grains, MgSiO3 crystal grains and Mg2SiO4 crystal grains present in the silicon oxide matrix, wherein the MgSiO3 crystal grains have a crystal size of 5-30 nm and the Mg2SiO4 crystal grains have a crystal size of 20-100 nm in the silicon-silicon oxide-magnesium silicate composite, and the content ratio of MgSiO3 crystal grains to Mg2SiO4 crystal grains is 2:1-1:1 on the weight basis. A method for preparing the negative electrode active material for a lithium secondary battery is also provided.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: March 26, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Il-Geun Oh, Dong-Hyuk Kim, Yong-Ju Lee
  • Patent number: 9921508
    Abstract: Provided is a method of preparing a poly-silicic-ferric coagulant (PSFC) having a controlled aggregating strength. In particular, according to an embodiment, provided is a method of preparing a PSFC that may effectively suppress both formation of fine toner particles having a particle size that is smaller than a desired particle size and formation of coarse toner particles having a particle size that is greater than the desired particle size, wherein the PSFC for a toner is used in preparation of a toner by using an emulsion aggregation (EA) method. The PSFC for a toner prepared by using the method, according to an embodiment, significantly exhibits a controlled aggregating strength, and thus a viscosity of an emulsion aggregation solution for the toner preparation is appropriate, which results in suppressing production of fine toner particles and coarse toner particles. In this regard, a toner preparation yield may improve.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: March 20, 2018
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventors: Sung-hwa Lee, Il-hyuk Kim, Yeong-sik Mun
  • Publication number: 20140199624
    Abstract: A method of preparing a toner. A toner having a low residual VOC content, a narrow particle size distribution, excellent fixing properties at low temperature, and high image quality may be prepared using the method by which a polyester resin dispersion is prepared by adding ingredients to a single reactor in a predetermined order.
    Type: Application
    Filed: April 1, 2011
    Publication date: July 17, 2014
    Inventors: Eui Hyun Ryu, Il Sun Hwang, Il Hyuk Kim, Sung Yul Kim
  • Patent number: 8603717
    Abstract: Provided are a toner and a method of preparing the same. The toner includes a binder resin, a coloring agent, and at least one additive, and a storage modulus curve of the toner with respect to temperature has multiple inflection points. The toner may be used in an electrophotographic image forming apparatus.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: December 10, 2013
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Jae Bum Park, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Dong Won Kim, Duck Kyun Ahn
  • Patent number: 8492060
    Abstract: Provided are a method of forming a toner image and an electrophotographic image forming apparatus including a toner. The method of forming a toner image is performed using a first toner having a yellow color and color coordinate values of a lightness (L) ranging from 91 to 94, a redness (a) ranging from ?11 to ?9, and a yellowness (b) ranging from 77 to 82; a second toner having a magenta color and color coordinate values of a lightness (L) ranging from 56 to 61, a redness (a) ranging from 56 to 61, and a yellowness (b) ranging from ?7 to ?5; and a third toner having a cyan color and color coordinate values of a lightness (L) ranging from 58 to 62, a redness (a) ranging from ?33 to ?30, and a yellowness (b) ranging from ?42 to ?37.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: July 23, 2013
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Dae Woong Choi, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dong Won Kim, Duck Kyun Ahn
  • Patent number: 8475995
    Abstract: A toner has a core-shell structure including a toner core portion having a resin with an active hydrogenactive hydrogen containing group, a colorant and at least one additive, and a toner shell portion surrounding the toner core portion, wherein the toner shell portion includes a cross-linked resin prepared by reaction of at least a portion of the active hydrogen containing group and the cross-linking agent.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: July 2, 2013
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Dae Il Hwang, Woo Young Yang, Keon Il Kim, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Dong Won Kim, Duck Kyun Ahn
  • Patent number: 8389188
    Abstract: Provided are a toner using a resin having an active hydrogen-containing group, and a method of preparing the toner. The toner using a resin having an active hydrogen-containing group includes a binder resin (A), a cross-linked resin including a THF insoluble content of 99-100 weight %, a colorant, and at least one additive. The cross-linked resin is arranged in the form of a plurality of islands in each particle of the toner.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: March 5, 2013
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Dong Won Kim, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Duck Kyun Ahn
  • Patent number: 8389196
    Abstract: Provided is a method of preparing a toner, the method including: preparing a solvent emulsion by stirring a medium including a polar medium, an organic solvent, and a surfactant; adding toner components including a resin and a pigment to the solvent emulsion; removing the organic solvent from the solvent emulsion including the toner components; and collecting a toner particle from the solvent emulsion from which the organic solvent is removed.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: March 5, 2013
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Dong Won Kim, Duck Kyun Ahn
  • Publication number: 20120328981
    Abstract: Disclosed is a preparation method for a toner. Problems according to use of a surfactant can be solved and it is possible to prepare toner particles having a uniform distribution of particle size by using an alkali-soluble resin containing an acidic group.
    Type: Application
    Filed: February 16, 2011
    Publication date: December 27, 2012
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Il Hyuk Kim, Ji Sang Jeong, Ha Na Jung, Sung Hwa Lee, Kyung Gyol Yon
  • Publication number: 20120028182
    Abstract: A toner having a core-shell structure and a method of preparing the same. Since a shell includes a crosslinked resin, a toner preventing hot offsets and having excellent charge stability is prepared.
    Type: Application
    Filed: January 26, 2010
    Publication date: February 2, 2012
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Ji Sang Jeong, Il Hyuk Kim, Dong Won Kim, Ha Na Jung, Kyung Gyol Yon
  • Publication number: 20110159424
    Abstract: Provided are a method of forming a toner image and an electrophotographic image forming apparatus including a toner. The method of forming a toner image is performed using a first toner having a yellow color and color coordinate values of a lightness (L) ranging from 91 to 94, a redness (a) ranging from ?11 to ?9, and a yellowness (b) ranging from 77 to 82; a second toner having a magenta color and color coordinate values of a lightness (L) ranging from 56 to 61, a redness (a) ranging from 56 to 61, and a yellowness (b) ranging from ?7 to ?5; and a third toner having a cyan color and color coordinate values of a lightness (L) ranging from 58 to 62, a redness (a) ranging from ?33 to ?30, and a yellowness (b) ranging from ?42 to ?37.
    Type: Application
    Filed: June 4, 2009
    Publication date: June 30, 2011
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD
    Inventors: Dae Woong Choi, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dong Won Kim, Duck Kyun Ahn
  • Publication number: 20110116841
    Abstract: Provided are a toner and a method of preparing the same. The toner includes a binder resin, a coloring agent, and at least one additive, and a storage modulus curve of the toner with respect to temperature has multiple inflection points. The toner may be used in an electrophotographic image forming apparatus.
    Type: Application
    Filed: July 22, 2009
    Publication date: May 19, 2011
    Applicant: Samsung Fine Chemicals Co., Ltd.
    Inventors: Jae Bum Park, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Dong Won Kim, Duck Kyun Ahn
  • Publication number: 20100232837
    Abstract: A toner has a core-shell structure including a toner core portion having a resin with an active hydrogenactive hydrogen containing group, a colorant and at least one additive, and a toner shell portion surrounding the toner core portion, wherein the toner shell portion includes a cross-linked resin prepared by reaction of at least a portion of the active hydrogen containing group and the cross-linking agent.
    Type: Application
    Filed: October 22, 2008
    Publication date: September 16, 2010
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD
    Inventors: Dae Il Hwang, Woo Young Yang, Keon Il Kim, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Dong Won Kim, Duck Kyun Ahn
  • Publication number: 20100216069
    Abstract: Provided is a method of preparing a toner, the method including: preparing a solvent emulsion by stirring a medium including a polar medium, an organic solvent, and a surfactant; adding toner components including a resin and a pigment to the solvent emulsion; removing the organic solvent from the solvent emulsion including the toner components; and collecting a toner particle from the solvent emulsion from which the organic solvent is removed.
    Type: Application
    Filed: September 19, 2008
    Publication date: August 26, 2010
    Applicant: Samsung Fine Chemicals Co. LTd
    Inventors: Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dae Woong Choi, Dong Won Kim, Duck Kyun Ahn
  • Patent number: 6893493
    Abstract: The present invention relates to a preparation method of solvent-free water-dispersible hydroxypropyl methyl cellulose phthalate nanoparticle, and more particularly, to a preparation method of solvent-free water-dispersible hydroxypropyl methyl cellulose phthalate nanoparticle, which is environment-friendly and advantageous in disintegration and dissolution when used as an enteric coating material, which is prepared by obtaining suitable hydroxypropyl methyl cellulose phthalate (HPMCP) particle through aqueous emulsification process and regulating content of remaining electrolyte through ion exchange process.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: May 17, 2005
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Kyu-Il Cho, Hyon-Ho Baek, Jung Hyun Kim, Jun Young Lee, Il Hyuk Kim, Jung Hwan Park