Patents by Inventor Kyu-cheol Shin

Kyu-cheol Shin 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: 20200136466
    Abstract: An apparatus of charging an electric mobility may include a tire wheel having an external surface configured to be coupled to a tire and an internal surface in which an empty space is formed, a battery accommodated in the empty space of the internal surface of the tire wheel and mounted, like the tire wheel, on a rotation shaft fixed to the tire wheel to be rotationally driven, a stopper configured to selectively couple the battery to the rotation shaft, and a controller connected to the stopper and configured to control selective coupling of the rotation shaft to the battery by the stopper, wherein the stopper is controlled by the controller so that the battery is charged using an induced electromotive force generated between a coil wound on the battery and a permanent magnet which is mounted to face the battery.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 30, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Kyu-Beom KO, Jin-Cheol SHIN
  • Publication number: 20200118181
    Abstract: An apparatus, a system, and a method are for automatically billing a vehicle left unattended in a charging station. The automatic billing apparatus includes a processor that provides a vehicle charging service at a charging station, determines that a vehicle is unattended after charging is completed, and performs a billing based on an unattended time. The apparatus further includes a storage that stores data obtained by the processor when the billing is performed.
    Type: Application
    Filed: November 27, 2018
    Publication date: April 16, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Tae Woo Lee, Seung Myun Chung, Jin Cheol Shin, Ha Young Woo, Kyu Beom Ko, Ik Jun Choi, Deok Keun Shin, Jae Seok You
  • Patent number: 7929888
    Abstract: A developing unit which forms an image on a photosensitive medium, includes a housing which accommodates a developer, a magnetic cylinder having a catch pole which picks up the developer in the housing by a magnetic force, and a main pole which couples a carrier among the picked-up developer, a sleeve rotatably installed on a circumference of the magnetic cylinder to form a magnetic brush having a predetermined width on the circumference by the developer picked up by the catch pole, and a sealing member provided at opposite end parts in an axial direction of the sleeve to prevent a leak of the developer, wherein a width Ws of the sleeve, a magnetized width WM of the main pole, a magnetized width Wc of the catch pole, and a width WB of the magnetic brush satisfy WS>WM>WB>WC.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: April 19, 2011
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventor: Kyu-cheol Shin
  • Patent number: 7715748
    Abstract: An electrophotographic image forming apparatus and a developing method thereof are provided. The electrophotographic image forming apparatus includes an image carrier body on which an electrostatic latent image is formed, a developing roller which faces the image carrier body and supplies toner to the electrostatic latent image formed on the image carrier body, and an anti-toner-dispersion element which faces an outer circumferential surface of the image carrier body between an exposing section where the electrostatic latent image is formed and a developing section where the electrostatic latent image is developed by the developing roller. A collection bias is applied to the anti-toner-dispersion element to collect dispersed toner from the developing roller.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: May 11, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-cheol Shin, Masahiko Itaya, Tsutomu Sasaki
  • Patent number: 7711277
    Abstract: A toner density estimating method for a two-component developer is provided. The toner density estimating method includes: sensing photo-reflectance of a test pattern having a plurality of grayscales formed by using toner; calculating a rate of change of the photo-reflectance according to the grayscales of the test pattern; and estimating a toner density based on the rate of change. Accordingly, it is possible to accurately estimate the toner density irrespective of the influence of changes in temperature, humidity, or other external factors.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 4, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-kook Ahn, Kyu-cheol Shin
  • Patent number: 7519318
    Abstract: An electrophotographic image forming device is provided which includes an image holder on which an electrostatic latent image is formed. A magnetic roller has a magnetic brush including nonmagnetic toner and a magnetic carrier using a magnetic force. Donor rollers are provided which have toner layers that are received from the magnetic roller on an outer circumference of each of the donor rollers. The donor rollers are located opposite to the image holder to develop the toner onto the electrostatic latent image.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: April 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Naonori Kurogawa, Masahiko Itaya, Kyu-Cheol Shin, Tsutomu Teraoka, Tsutomu Sasaki, Myung-Kook Ahn
  • Patent number: 7489893
    Abstract: A hybrid type developing apparatus and method forms a magnetic brush of non-magnetic toner and a magnetic carrier on a circumference of a magnetic roller forms a uniform toner layer on the circumference of a donor roller using only toner from the magnetic roller, and develops an electrostatic latent image on an image receptor. The hybrid type developing apparatus includes: a plurality of electrodes on the circumference of the donor roller; first and second brush electrodes in an upstream area and a downstream area, respectively, of the donor roller facing the magnetic roller with respect to a direction of rotation; and a bias applying device for applying a recovery bias to the first brush electrode to remove toner from the donor roller and a supply bias to the second brush electrode to supply toner from the magnetic roller to the donor roller.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: February 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tsutomu Teraoka, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Sasaki, Myung-kook Ahn, Naonori Kurogawa
  • Publication number: 20080304873
    Abstract: A developing unit which forms an image on a photosensitive medium, includes a housing which accommodates a developer, a magnetic cylinder having a catch pole which picks up the developer in the housing by a magnetic force, and a main pole which couples a carrier among the picked-up developer, a sleeve rotatably installed on a circumference of the magnetic cylinder to form a magnetic brush having a predetermined width on the circumference by the developer picked up by the catch pole, and a sealing member provided at opposite end parts in an axial direction of the sleeve to prevent a leak of the developer, wherein a width Ws of the sleeve, a magnetized width WM of the main pole, a magnetized width Wc of the catch pole, and a width WB of the magnetic brush satisfy WS>WM>WB>WC.
    Type: Application
    Filed: January 16, 2008
    Publication date: December 11, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Kyu-cheol Shin
  • Publication number: 20080025738
    Abstract: A toner density estimating method for a two-component developer is provided. The toner density estimating method includes: sensing photo-reflectance of a test pattern having a plurality of grayscales formed by using toner; calculating a rate of change of the photo-reflectance according to the grayscales of the test pattern; and estimating a toner density based on the rate of change. Accordingly, it is possible to accurately estimate the toner density irrespective of the influence of changes in temperature, humidity, or other external factors.
    Type: Application
    Filed: December 14, 2006
    Publication date: January 31, 2008
    Inventors: Myung-kook Ahn, Kyu-cheol Shin
  • Patent number: 7228085
    Abstract: A color image forming apparatus which, in a sequential order for each of plural colors of a composite color image, charges plural photosensitive bodies, exposes electrostatic latent images on the plural photosensitive bodies, develops latent images on the photosensitive bodies into color images, and transfers the color images to sequentially form images of each of the plural colors one on another to form the composite color image and transcribing the composite color image onto a printing medium. The color image forming apparatus includes: plural charging units which perform the charging process for each of the plural colors; plural exposing units which perform the exposing process for each of the plural colors; plural developing units which perform the developing process for each of the plural colors; and plural transfer units which perform the transfer process for each of the plural colors.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: June 5, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyu-cheol Shin
  • Publication number: 20070092288
    Abstract: An electrophotographic image forming apparatus and a developing method thereof are provided. The electrophotographic image forming apparatus includes an image carrier body on which an electrostatic latent image is formed, a developing roller which faces the image carrier body and supplies toner to the electrostatic latent image formed on the image carrier body, and an anti-toner-dispersion element which faces an outer circumferential surface of the image carrier body between an exposing section where the electrostatic latent image is formed and a developing section where the electrostatic latent image is developed by the developing roller. A collection bias is applied to the anti-toner-dispersion element to collect dispersed toner from the developing roller.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 26, 2007
    Inventors: Kyu-cheol Shin, Masahiko Itaya, Tsutomu Sasaki
  • Patent number: 7177562
    Abstract: An apparatus for applying a voltage across an image carrying member carrying a toner image and a print medium, the toner image being transferred from the image carrying member to the print medium during an image transfer process. The apparatus includes a first voltage receiver disposed on a first side in reference to the print medium, a second voltage receiver disposed on a second side opposite the first side, a voltage supply unit adapted to apply the voltage selectively to the first voltage receiver and to the second voltage receiver, and a voltage adjustment unit adapted to compensate for variations of the voltage.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyu cheol Shin
  • Publication number: 20070019995
    Abstract: There are provided a hybrid type developing apparatus and method.
    Type: Application
    Filed: May 26, 2006
    Publication date: January 25, 2007
    Inventors: Tsutomu Teraoka, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Sasaki, Myung-kook Ahn, Naonori Kurogawa
  • Publication number: 20070014593
    Abstract: An electrophotographic image forming apparatus includes: an image receptor on which an electrostatic latent image is formed; a magnetic roller for forming a magnetic brush having a non-magnetic toner and a magnetic carrier by magnetic force; a donor roller facing the image receptor and receiving a toner from the magnetic roller to form a toner layer on an outer circumference thereof; bias applying device for applying a bias voltage to the donor roller to develop the electrostatic latent image by supplying the toner from the toner layer; and toner removing device which contacts the donor roller and removes at least a portion of the toner layer from a surface of the donor roller after developing. A method of developing the latent image on the image receptor is provided by the apparatus.
    Type: Application
    Filed: May 24, 2006
    Publication date: January 18, 2007
    Inventors: Naonori Kurogawa, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Teraoka, Tsutomu Sasaki, Myung-kook Ahn
  • Publication number: 20070003328
    Abstract: A hybrid type developing apparatus of an electrophotographic image forming apparatus includes: an image receptor on which an electrostatic latent image is formed; a magnetic roller for forming a magnetic brush of non-magnetic toner and magnetic carrier by using magnetic force; a donor roller which faces the image receptor and has a circumference for supporting a toner layer formed by receiving toner from the magnetic roller; a bias voltage applying device for applying a development bias voltage to the donor roller to develop toner of the toner layer to the electrostatic latent image; an electrode positioned at an upstream side at a point closest and most adjacent position between the donor roller and the image receptor and at a downstream side at a point closest and most adjacent position between the donor roller and the magnetic roller and an applied bias voltage of weakening adhesive force of the toner layer to the donor roller and cohesive force of toner to each other.
    Type: Application
    Filed: May 24, 2006
    Publication date: January 4, 2007
    Inventors: Naonori Kurogawa, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Teraoka, Tsutomu Sasaki, Myung-kook Ahn
  • Patent number: 7158741
    Abstract: A developing device for a liquid electrophotographic image forming apparatus is provided. The developing device may have a developing roller, which supplies ink to a photosensitive body on which an electrostatic latent image is formed and develops the electrostatic latent image. The apparatus may include an ink reservoir in which ink supplied to the developing roller is accommodated, and an ink removal unit, which removes ink remaining in the ink reservoir after a development operation is performed. The ink removal unit may comprise an ink removal member rotatably installed in the ink reservoir that exhausts ink through a through hole formed under the ink reservoir. A driving member rotates the ink removal member. An ink cartridge stores ink exhausted through the through hole.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: January 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-dae Kim, Kyu-cheol Shin, In-yong Song, Joong-gwang Shin
  • Publication number: 20060280525
    Abstract: An electrophotographic image forming apparatus is provided which includes a first developing unit which forms a monochrome image in a two-component development method and includes a photosensitive medium on which an electrostatic latent image is formed by a first exposure unit. Additionally, a plurality of second developing units are provided which form a color image in a one-component development method and include a photosensitive medium on which an electrostatic latent image is formed by a second exposure unit. A control unit generates control signals to independently control the operations of the first and second exposure units and the first and second developing units.
    Type: Application
    Filed: February 17, 2006
    Publication date: December 14, 2006
    Inventors: Kyu-Cheol Shin, Myung-Kook Ahn, Masahiko Itaya, Tsutomu Teraoka, Tsutomu Sasaki, Naonori Kurogawa
  • Publication number: 20060222416
    Abstract: An electrophotographic image forming device is provided which includes an image holder on which an electrostatic latent image is formed. A magnetic roller has a magnetic brush including nonmagnetic toner and a magnetic carrier using a magnetic force. Donor rollers are provided which have toner layers that are received from the magnetic roller on an outer circumference of each of the donor rollers. The donor rollers are located opposite to the image holder to develop the toner onto the electrostatic latent image.
    Type: Application
    Filed: December 9, 2005
    Publication date: October 5, 2006
    Inventors: Naonori Kurogawa, Masahiko Itaya, Kyu-Cheol Shin, Tsutomu Teraoka, Tsutomu Sasaki, Myung-Kook Ahn
  • Publication number: 20060222390
    Abstract: Provided is an image forming device performing hybrid development that uses magnetic carriers and nonmagnetic carriers. An electrical potential of a non-image portion on an image holder and an electrical potential of a direct current component of a developing bias voltage applied to a developing roller are determined so that a difference between the electrical potentials are less than or equal to a value at which a developing rate of the non-image portion is saturated.
    Type: Application
    Filed: January 31, 2006
    Publication date: October 5, 2006
    Inventors: Tsutomu Sasaki, Kyu-cheol Shin, Myung-kook Ahn, Masahiko Itaya, Tsutomu Teraoka, Naonori Kurogawa
  • Patent number: 7110685
    Abstract: A transfer power supply apparatus of an image forming machine which can maintain a predetermined degree of the quality of an image on a print medium even when the temperature of the surrounding environment varies. The image forming machine includes a voltage computation unit computing an appropriate voltage corresponding to resistance of an intermediate transfer medium, an output voltage generator generating a transfer voltage according to a signal output from the voltage computation unit, and a switching unit selectively applying a voltage output from the output voltage generator, wherein the switching unit connects a voltage output from the output voltage generator to a transfer roller when the image created on the intermediate transfer medium is transferred to a print medium, and connects a voltage output from the output voltage generator to a transfer backup roller when the image is not transferred to the print medium.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: September 19, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyu cheol Shin