Patents by Inventor Woo-yong Park

Woo-yong Park 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: 20240146953
    Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 2, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gun BANG, Hui Yong KIM, Gwang Hoon PARK, Woo Woen GWUN, Tae Hyun KIM, Won Jun LEE
  • Publication number: 20240120213
    Abstract: A method of fabricating a semiconductor device is provided. The method includes: loading a substrate into a substrate processing apparatus; and processing the substrate, using the substrate processing apparatus. The processing the substrate includes: providing a process gas; generating a process etchant from the process gas, using plasma ignition, the process etchant including a first etchant and a second etchant; processing the substrate, using the process etchant; identifying a composition rate of the process etchant; and controlling the processing of the substrate based on a process result according to the composition rate of the process etchant.
    Type: Application
    Filed: August 30, 2023
    Publication date: April 11, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Rim LEE, Myoung Jae SEO, Sung Gil KANG, Hyun Ho DOH, Sung Yong PARK, In Hye JEONG
  • Publication number: 20240091320
    Abstract: The present invention relates to a peptide with anti-inflammatory activity, wherein the peptide comprises SEQ ID NO: 1, the peptide has above 80% homology of amino acid sequence with above-mentioned sequence, or the peptide is the fragment of the above-mentioned peptides. The present invention also relates to an inflammatory composition comprising the above mentioned peptides. According to the present invention, a peptide comprising a sequence of SEQ ID NO: 1 has an outstanding efficacy in both suppressing inflammation and in prophylactic means. Therefore, the composition comprising the peptide of this invention can be used as anti-inflammatory pharmaceutical composition or as cosmetic composition, in turn, treating and preventing a variety of different types of inflammatory diseases.
    Type: Application
    Filed: August 9, 2023
    Publication date: March 21, 2024
    Inventors: Sang Jae KIM, Kyung Hee KIM, Kyu-Yong LEE, Seong-Ho KOH, Hyun-Hee PARK, Sung Jin HUH, Woo Jin LEE, Bum Joon KIM
  • Publication number: 20210140528
    Abstract: Disclosed is a rotating device including: a first gear part having a first gear; a second gear part coupled to the first gear and having a second gear that rotates relative to the first gear; a third gear part coupled to the second gear and having a third gear that rotates relative to the second gear; and first and second driving units for respectively providing rotational driving forces to first and second input gear parts which are two gear parts of the first to third gear parts to determine a rotational output of an output gear part which is the remaining gear part. At least one of the first and second driving units changes the rotational speed of at least one of the first and second input gear parts to change the rotational speed of the output gear part.
    Type: Application
    Filed: June 7, 2018
    Publication date: May 13, 2021
    Applicant: XENARTS,INC.
    Inventors: Wan-Pyo LEE, Woo-Yong PARK, Chan-Soon LIM
  • Patent number: 7113730
    Abstract: An apparatus prevents developer wraparound in a wet electrophotographic printer using wraparound preventing units. Each of the wraparound preventing units has varied diameter parts formed at both ends of a developing roller, and matching parts formed at both ends of a metering roller to correspond to the varied diameter parts of the developing roller. Since the varied diameter parts and the matching parts are respectively installed at both ends of the developing roller and the metering roller, developer wraparound is not generated in the developing roller and a photosensitive roller during development.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: September 26, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-yong Park, Woo-yong Park, Yong-su Kim
  • Patent number: 6975824
    Abstract: A wet electrophotographic printer includes a developing chamber communicating with an inlet of a first nip between a developing roller and a deposit roller to supply a liquid developer into the first nip therebetween, a developer storing chamber communicating with an inlet of a second nip between the developing roller and a metering roller to withdraw the liquid developer of a low density generated at the second nip during a development, and preventing the liquid developer of the low density from being supplied to the first nip, and a developer supply unit disposed below a partition to supply the liquid developer from the developer storing chamber into the developing chamber. The liquid developer of the low density generated at the second nip is not directly supplied to the first nip, but is supplied after being withdrawn to the developer storing chamber and mixed therein.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: December 13, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-Yong Park
  • Patent number: 6799908
    Abstract: A developer unit for a wet-type color image forming apparatus. The developer unit includes a developer bath filled with a liquid developing agent to a predetermined depth, and a developing roller that develops an electrostatic latent image formed on a photoreceptor to correspond to an original image by supplying the liquid developing agent while being partially immersed in the liquid developing agent. The developer unit further includes a cleaning roller that cleans the surface of the developing roller, a depositing roller that deposits the liquid developing agent onto the cleaned surface of the developing roller, and a metering roller that adjusts the thickness and concentration of the liquid developing agent deposited onto the surface of the developing roller by the depositing roller to suitable levels to develop the electrostatic latent image. The developer unit also includes a developer cartridge that supplies the liquid developing agent into the developer bath.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: October 5, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-yong Park, Jong-woo Kim
  • Publication number: 20040146317
    Abstract: A wet electrophotographic printer includes a developing chamber communicating with an inlet of a first nip between a developing roller and a deposit roller to supply a liquid developer into the first nip therebetween, a developer storing chamber communicating with an inlet of a second nip between the developing roller and a metering roller to withdraw the liquid developer of a low density generated at the second nip during a development, and preventing the liquid developer of the low density from being supplied to the first nip, and a developer supply unit disposed below a partition to supply the liquid developer from the developer storing chamber into the developing chamber. The liquid developer of the low density generated at the second nip is not directly supplied to the first nip, but is supplied after being withdrawn to the developer storing chamber and mixed therein.
    Type: Application
    Filed: July 24, 2003
    Publication date: July 29, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Woo-Yong Park
  • Patent number: 6766130
    Abstract: A liquid developer imaging system and a method using the system for developing an image, including a cartridge for containing a developing solution; a developing container for receiving the developing solution supplied from the cartridge via a predetermined supply line; a developing roller partly submerged in the developing solution contained in the developing container, installed to be rotated facing a photosensitive object; and a metering blade for scraping off the developing solution coated on the surface of the developing roller to a predetermined thickness, is provided. According to the system, a developing supply structure can be considerably simplified because a high-density developing solution is directly used in developing an image without a process of diluting the solution, and an image can be developed to have high definition because the concentration of the developing solution coated on the developing roller is regularly controlled by a metering blade.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: July 20, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-yong Song, Kyu-cheol Shin, Kwang-ho No, Hyun-seong Shin, Geun-yong Park, Jong-woo Kim, Seung-young Byun, Joong-gwang Shin, Sam-seuk Choi, Yong-su Kim, Woo-yong Park, Jun-hee Cho, Wan-ha Kim
  • Patent number: 6711370
    Abstract: A liquid image forming apparatus including a developing portion in which ink is maintained at a uniform level so that the developing roller is dipped at a predetermined level, an ink reservoir in which ink supplied to the developing portion is stored, and an ink supplying unit to supply ink stored in the ink reservoir to the developing portion. The developing portion and the ink reservoir are provided in one developing container, and the ink supplying unit which supplies ink to the developing portion from the ink reservoir is provided in the liquid image forming apparatus.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: March 23, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-yong Park, Young-ha No, Kwang-ho No
  • Publication number: 20040005173
    Abstract: A liquid image forming apparatus including a developing portion in which ink is maintained at a uniform level so that the developing roller is dipped at a predetermined level, an ink reservoir in which ink supplied to the developing portion is stored, and an ink supplying unit to supply ink stored in the ink reservoir to the developing portion. The developing portion and the ink reservoir are provided in one developing container, and the ink supplying unit which supplies ink to the developing portion from the ink reservoir is provided in the liquid image forming apparatus.
    Type: Application
    Filed: March 25, 2003
    Publication date: January 8, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woo-yong Park, Young-ha No, Kwang-ho No
  • Publication number: 20040005174
    Abstract: An apparatus prevents developer wraparound in a wet electrophotographic printer using wraparound preventing units. Each of the wraparound preventing units has varied diameter parts formed at both ends of a developing roller, and matching parts formed at both ends of a metering roller to correspond to the varied diameter parts of the developing roller. Since the varied diameter parts and the matching parts are respectively installed at both ends of the developing roller and the metering roller, developer wraparound is not generated in the developing roller and a photosensitive roller during development.
    Type: Application
    Filed: July 2, 2003
    Publication date: January 8, 2004
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Geun-Yong Park, Woo-Yong Park, Yong-Su Kim
  • Patent number: 6650856
    Abstract: A liquid electrophotographic printer employs a continuously circulating photoreceptor web having a non-image region with a potential higher than an image region. A laser scanner forms a latent electrostatic image in the image region, and a development unit develops the latent image using an ink having toner particles dispersed in a liquid carrier. The development unit includes a developer roller with a surface potential in between that of the image and non-image region for forming the toner image by attaching the toner particles to the image region; a toner removal roller with a surface potential between that of the image and non-image regions after they pass through the developer roller, for removing toner particles remaining in a liquid carrier film in the non-image region; and a squeeze roller with a surface potential higher than any of the foregoing, for squeezing the liquid carrier out of the toner image by compression.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: November 18, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-jin Ahn, Cheol-young Han, Woo-yong Park, Seung-young Byun, Myung-ho Kyung
  • Patent number: 6597880
    Abstract: An ink pollution prevention device in a wet electrophotographic printer, for preventing a developer from polluting a photoreceptor and peripheral devices by flowing out at the ends of a development roller, a squeegee roller, and a cleaning roller, is provided with a pair of ink stoppers mounted around a shaft of each roller in a symmetrical manner with each other. Each ink stopper has a plurality of peaks and recesses which form a continuous helical shape in an opposite helical direction from the other ink stopper. The helical direction of the ink stopper is formed to permit the ink in the ink stopper to flow toward the center of the rollers when the rollers are rotated.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: July 22, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-yong Park
  • Publication number: 20030044202
    Abstract: A liquid developer imaging system and a method using the system for developing an image, including a cartridge for containing a developing solution; a developing container for receiving the developing solution supplied from the cartridge via a predetermined supply line; a developing roller partly submerged in the developing solution contained in the developing container, installed to be rotated facing a photosensitive object; and a metering blade for scraping off the developing solution coated on the surface of the developing roller to a predetermined thickness, is provided. According to the system, a developing supply structure can be considerably simplified because a high-density developing solution is directly used in developing an image without a process of diluting the solution, and an image can be developed to have high definition because the concentration of the developing solution coated on the developing roller is regularly controlled by a metering blade.
    Type: Application
    Filed: May 13, 2002
    Publication date: March 6, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: In-yong Song, Kyu-cheol Shin, Kwang-ho No, Hyun-seong Shin, Geun-yong Park, Jong-woo Kim, Seung-young Byun, Joong-gwang Shin, Sam-seuk Choi, Yong-su Kim, Woo-yong Park, Jun-hee Cho, Wan-ha Kim
  • Publication number: 20020136569
    Abstract: A liquid electrophotographic printer employs a continuously circulating photoreceptor web having a non-image region with a potential higher than an image region. A laser scanner forms a latent electrostatic image in the image region, and a development unit develops the latent image using an ink having toner particles dispersed in a liquid carrier. The development unit includes a developer roller with a surface potential in between that of the image and non-image region for forming the toner image by attaching the toner particles to the image region; a toner removal roller with a surface potential between that of the image and non-image regions after they pass through the developer roller, for removing toner particles remaining in a liquid carrier film in the non-image region; and a squeeze roller with a surface potential higher than any of the foregoing, for squeezing the liquid carrier out of the toner image by compression.
    Type: Application
    Filed: September 17, 2001
    Publication date: September 26, 2002
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeong-jin Ahn, Cheol-young Han, Woo-yong Park, Seung-young Byun, Myung-ho Kyung
  • Patent number: 6356725
    Abstract: A photosensitive belt cartridge includes a cartridge body substantially in the shape of an ovoid whose one end is open to receive the photosensitive belt in an endless track thereto. A plurality of spring plates, whose respective ends are fixed on ends of inner wall of the cartridge body, are arranged on the inner wall of the cartridge body along the endless track of the photosensitive belt at certain intervals, for supporting the photosensitive belt in cooperation with the inner wall of the cartridge body. An inner cover is used which is disposed at an open portion of the cartridge body for supporting edges of the photosensitive belt, and also for supporting the ends of the plurality of spring plates, for preventing partial loosening of the photosensitive belt. Further, the cartridge body includes a guiding rail formed on the upper surface, which has a pair of outwardly-bent locking ribs which are slidably fit into the advancing rail of the belt unit.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: March 12, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-yong Park, Kwang-ho No
  • Publication number: 20020025182
    Abstract: An ink pollution prevention device in a wet electrophotographic printer, for preventing a developer from polluting a photoreceptor and peripheral devices by flowing out at the ends of a development roller, a squeegee roller, and a cleaning roller, is provided with a pair of ink stoppers mounted around a shaft of each roller in a symmetrical manner with each other. Each ink stopper has a plurality of peaks and recesses which form a continuous helical shape in an opposite helical direction from the other ink stopper. The helical direction of the ink stopper is formed to permit the ink in the ink stopper to flow toward the center of the rollers when the rollers are rotated.
    Type: Application
    Filed: May 4, 2001
    Publication date: February 28, 2002
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Woo-Yong Park
  • Patent number: 6349186
    Abstract: There are provided a method for controlling the mode of a developing station of a liquid electrophotographic printer and a development roller driving apparatus therefor. In the controlling method, a printing mode, a drip line removal mode and a home mode are sequentially performed, and a development roller is subjected to racing in the home mode to be cleaned. Since the development roller is cleaned in the home mode in which the development roller is spaced apart from a photosensitive belt, the photosensitive belt is not contaminated by the development roller while cleaning the development roller. Also, the cleaning of the development roller is performed after completing a drip line removal mode, so sufficient cleaning time can be obtained.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: February 19, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-yong Park, Kwang-ho No
  • Patent number: 6321054
    Abstract: A squeegee roller cleaning apparatus of a liquid electrophotographic printer includes a squeegee roller and a cleaning roller. The squeegee roller is mounted to be operative for movement in order to selectively contact a photoreceptor web circulating along an endless path. The cleaning roller includes at least one blade member that is spirally twisted on the outer circumference of a rotary rod so as to contact the squeegee roller by the movement of the squeegee roller to remove a hold-up volume of developer. Thus, contamination of the photoreceptor web and the transfer roller can be reduced so that the quality of the printed image can be improved.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: November 20, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-yong Park