Patents by Inventor Wan Chang

Wan Chang 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: 20190267384
    Abstract: A semiconductor device includes a lower electrode on a substrate, a capacitor dielectric layer on the lower electrode, and an upper electrode on the capacitor dielectric layer. The capacitor dielectric layer includes a base layer on the lower electrode and a dielectric particle layer in at least a portion of the base layer. The base layer includes a first dielectric material, and the dielectric particle layer extends at least partially continuously along a thickness direction of the capacitor dielectric layer and includes a second dielectric material different from the first dielectric material.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Inventors: Se-hyoung Ahn, Youn-soo Kim, Jae-hyoung Choi, Jae-wan Chang, Sun-min Moon, Jin-sun Lee
  • Patent number: 10360156
    Abstract: A method of operating a data storage device in which a nonvolatile memory is included and a mapping table defining a mapping relation between a physical address and a logical address of the nonvolatile memory is stored in a host memory buffer of a host memory includes requesting a host for an asynchronous event based on information about a map miss that the mapping relation about the logical address received from the host is not included in the mapping table, receiving information about the host memory buffer adjusted by the host based on the asynchronous event, and updating the mapping table to the adjusted host memory buffer with reference to the information about the host memory buffer. A method of operating a data storage device according to example embodiments of the inventive concept can reduce the number of map misses or improve reliability of a nonvolatile memory.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Jin Yun, Sil Wan Chang
  • Patent number: 10297600
    Abstract: A semiconductor device includes a lower electrode on a substrate, a capacitor dielectric layer on the lower electrode, and an upper electrode on the capacitor dielectric layer. The capacitor dielectric layer includes a base layer on the lower electrode and a dielectric particle layer in at least a portion of the base layer. The base layer includes a first dielectric material, and the dielectric particle layer extends at least partially continuously along a thickness direction of the capacitor dielectric layer and includes a second dielectric material different from the first dielectric material.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: May 21, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-hyoung Ahn, Youn-soo Kim, Jae-hyoung Choi, Jae-wan Chang, Sun-min Moon, Jin-sun Lee
  • Patent number: 10285918
    Abstract: Disclosed is a cosmetic composition capable of exhibiting various colors, including red, yellow and blue colors. The disclosed cosmetic composition comprises a red, yellow or blue pearlescent pigment prepared by coating a natural pigment on a matrix, so that it is capable of exhibiting various colors.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 14, 2019
    Assignee: CQV CO., LTD.
    Inventors: Kum-Sung Cho, Min Choi, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang
  • Patent number: 10259943
    Abstract: Disclosed is a method for manufacturing plate ?-alumina pearlescent pigments and nano-metal coating pearlescent pigments with a large aspect ratio, having excellent reflectivity and capable of expressing various colors.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: April 16, 2019
    Assignee: CQV CO., LTD.
    Inventors: Myung-Ho Jung, Kyung-Jun Han, Jae-Il Jeong, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang, Jae-Soo Choi, Beom-Jae Lee, Jung-Min Lee
  • Publication number: 20190087332
    Abstract: An operation method of a memory controller which is configured to control a nonvolatile memory device includes receiving a command from the outside, calculating a delay time based on a currently available write buffer, a previously available write buffer, and a reference value, and processing the command based on the delay time.
    Type: Application
    Filed: June 13, 2018
    Publication date: March 21, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yu-hun JUN, SIL WAN CHANG, Heechul CHAE, SEONTAEK KIM, In Hwan DOH
  • Publication number: 20190002703
    Abstract: The present invention relates to a technology for producing a black pearlescent pigment for cosmetics which is a human-friendly and nature-friendly by using a pigment including natural charcoal powder. The production method of the pearlescent pigment using natural charcoal according to the present invention includes (a) milling natural charcoal to produce a pigment including natural charcoal powder; and (b) coating a flake substrate with the produced pigment including the natural charcoal powder, wherein the milling is performed at 20 to 40 Hz for 24 to 72 hours, and an average particle size of the pigment including the natural charcoal powder is 100 to 300 nm.
    Type: Application
    Filed: October 23, 2017
    Publication date: January 3, 2019
    Applicant: CQV CO., LTD.
    Inventors: Kum-Sung CHO, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG
  • Publication number: 20180311996
    Abstract: A method of fabricating three-dimensional patterns on a workpiece includes steps of providing a transparent film and forming a three-dimensional patterns on the transparent film. A layer of adhesive is coated on the three-dimensional patterns. A heat transfer film is used in transferring the three-dimensional patterns from the heat transfer film to a main surface of the workpiece using a vacuum heat transfer printing method.
    Type: Application
    Filed: July 7, 2017
    Publication date: November 1, 2018
    Inventors: JIH-CHEN LIU, HUNG-CHUN MA, CHIH-JUNG CHANG, WEI-TING CHEN, YU-LIN LIAO, CHEN-CHU CHIANG, HAN-LUNG LEE, JAN-WAN CHANG, HAN-LUNG CHAO
  • Patent number: 10114555
    Abstract: A semiconductor device includes a memory cell array including a first memory region and a second memory region; a plurality of register sets for storing a plurality of parameter sets; and a control logic circuit configured to, activate a first register set among the plurality of register sets in response to a selection signal, and perform an access operation on the first memory region using a parameter set stored in an activated register set from among the plurality of register sets.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 30, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sil Wan Chang, Byung Gook Kim, Jae Young Kwon, Jong Youl Lee
  • Publication number: 20180301068
    Abstract: A method for manufacturing an oxidation-resistant glass-mounted photograph includes steps of providing a transparent base, the transparent base includes a front surface and a rear surface opposite to the front surface. A UV inkjet printer sprays UV-curable glue onto the rear surface of the transparent base to form a bonding layer, and an electronic file of a pattern layer is installed into the UV inkjet printer, a layer of UV-curable ink on the bonding layer is printed on the bonding layer using the UV inkjet printer according to the electronic file of the pattern layer. The layer of UV-curable ink is cured to form the pattern layer providing a representation of a desired image.
    Type: Application
    Filed: August 4, 2017
    Publication date: October 18, 2018
    Inventors: FENG-YUEN DAI, JIH-CHEN LIU, CHIH-JUNG CHANG, HUNG-CHUN MA, HAN-LUNG LEE, HAN-LUNG CHAO, YU-LIN LIAO, CHEN-CHU CHIANG, WEI-TING CHEN, JAN-WAN CHANG
  • Publication number: 20180298198
    Abstract: Disclosed are a glossy pigment having a hollow structure and a method for producing the same. The glossy pigment having a hollow structure according to the present invention comprises: a hollow which penetrates through the center of the inside thereof; and a metal oxide coating layer which covers a part or all of the hollow, wherein the metal oxide coating layer has a hollow structure having a thickness of 0.1-3 ?m.
    Type: Application
    Filed: September 30, 2016
    Publication date: October 18, 2018
    Inventors: Yong-Ho SON, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG
  • Patent number: 10061521
    Abstract: An operation method of a storage device, which is connected to a host through an interface sharing a memory buffer of the host, includes receiving an access command from the host, anticipating data that is expected to be requested by the host with reference to the access command, reading out the anticipated data from a nonvolatile memory device and loading the read data to a first area of the memory buffer, and in a case of being requested to load the anticipated data into a second area of the memory buffer by the host, moving the anticipated data from the first area to the second area.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 28, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Sik Yun, Sil Wan Chang, Jaesub Kim, Sangyoon Oh
  • Publication number: 20180240800
    Abstract: A semiconductor device includes a lower electrode on a substrate, a capacitor dielectric layer on the lower electrode, and an upper electrode on the capacitor dielectric layer. The capacitor dielectric layer includes a base layer on the lower electrode and a dielectric particle layer in at least a portion of the base layer. The base layer includes a first dielectric material, and the dielectric particle layer extends at least partially continuously along a thickness direction of the capacitor dielectric layer and includes a second dielectric material different from the first dielectric material.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 23, 2018
    Inventors: Se-hyoung Ahn, Youn-soo Kim, Jae-hyoung Choi, Jae-wan Chang, Sun-min Moon, Jin-sun Lee
  • Publication number: 20180178573
    Abstract: A glass-mounted photograph includes a transparent plate with front and rear surfaces. A bonding layer is formed on the rear surface, and a pattern layer is formed on the bonding layer, the pattern layer being made from UV curable ink to present a picture that could have been photographed. The pattern layer of the oxidation-resistant glass-mounted photograph 100 is formed by spray printing color UV ink on the free surface of the bonding layer, when the UV ink is cured, the pattern layer is firmly formed on the surface of the transparent plate, and the pattern layer is an UV ink layer, the pattern layer 16 has an advantage of permanent preservation, and not become yellow as time goes on.
    Type: Application
    Filed: July 30, 2017
    Publication date: June 28, 2018
    Inventors: FENG-YUEN DAI, JIH-CHEN LIU, HUNG-LIEN YEH, CHIH-JUNG CHANG, HUNG-CHUN MA, HAN-LUNG LEE, HAN-LUNG CHAO, JAN-WAN CHANG, CHEN-CHU CHIANG, WEI-TING CHEN
  • Publication number: 20180150401
    Abstract: A memory system includes a first and a second flash domain, a domain distributor, and a first redirector. The first and second flash domains includes first and second spare memory dies, respectively. The domain distributor is configured to generate a first logical address corresponding to first data and to generate a second logical address corresponding to second data. The first redirector is configured to receive the first data and the second data from the domain distributor and to respectively provide the first data and the second data to the first flash domain and the second flash domain. The first redirector is configured to provide a part of the second data corresponding to a first fail memory die to the first flash domain, if the second flash domain include the first fail memory die, such that the first redirector replaces the first fail memory die with the first spare memory die.
    Type: Application
    Filed: September 21, 2017
    Publication date: May 31, 2018
    Inventor: Sil-wan CHANG
  • Publication number: 20180148576
    Abstract: A gold pigment is disclosed. The gold pigment according to the present disclosure includes a substrate; a first coating layer formed on a surface of the substrate and including a metal oxide having a refractive index of more than 1.8; a second coating layer formed on the first coating layer and including an oxide containing manganese; a third coating layer formed on the second coating layer and including a colorless metal oxide having a refractive index of 1.8 or less; a fourth coating layer formed on the third coating layer and including a metal oxide having a refractive index of more than 1.8; and a fifth coating layer formed on the fourth coating layer and including Fe2O3.
    Type: Application
    Filed: June 2, 2016
    Publication date: May 31, 2018
    Inventors: Kil-Wan CHANG, Kwang-Soo LIM, Byung-Ki CHOI, Jin-Hyoung LEE
  • Patent number: 9984757
    Abstract: An operating method of a memory controller, configured to control a non-volatile memory device that performs a refresh read operation, detects a power on state or power off state of the non-volatile memory device and issues a refresh read command. The non-volatile memory device that receives the refresh read command is controlled to perform, one time, the refresh read operation including a read operation on one of a plurality of word lines with respect to each of the plurality of memory blocks.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: May 29, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Ho Lee, Sil-Wan Chang, Hyun-Jin Choi, Dong-Hoon Ham
  • Publication number: 20180141309
    Abstract: A method for manufacturing an imitation metallic decoration on an article includes providing a base layer with a first surface, applying a texture layer on the first surface; the texture layer including a second surface facing away from the first surface, and applying a complete metallic ink layer on the second surface. Hereby, a plastic article can be given a metallic appearance to match that, for example, of an actual metal used as another cover of the article.
    Type: Application
    Filed: June 20, 2017
    Publication date: May 24, 2018
    Inventors: FENG-YUEN DAI, JIH-CHEN LIU, CHIH-JUNG CHANG, HUNG-CHUN MA, YU-LIN LIAO, YI-ZHONG SHEU, HAN-LUNG CHAO, JAN-WAN CHANG, WEI-TING CHEN, CHEN-CHU CHIANG
  • Publication number: 20180143780
    Abstract: A storage system performing data deduplication includes a storage device configured to store data received from a host, and a controller configured to receive the data and an index associated with the data received from the host. The controller includes a memory configured to store mapping information and a reference count, the mapping information associating the index received from the host with a physical address of the storage system, the reference count associated with the index received from the host. The controller determines whether the data received from the host corresponds to a duplicate of data previously stored in the storage device by reading, from the memory, the mapping information and the reference count, the reading based on the index received from the host. The controller performs a deduplication process by updating the reference count if the data received from the host corresponds to the duplicate of data previously stored.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 24, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-kug CHO, Byoung-young AHN, Eun-jin YUN, Yang-seok KI, Sil-wan CHANG, Seok-chan LEE
  • Patent number: 9978753
    Abstract: A semiconductor device includes a lower electrode on a substrate, a capacitor dielectric layer on the lower electrode, and an upper electrode on the capacitor dielectric layer. The capacitor dielectric layer includes a base layer on the lower electrode and a dielectric particle layer in at least a portion of the base layer. The base layer includes a first dielectric material, and the dielectric particle layer extends at least partially continuously along a thickness direction of the capacitor dielectric layer and includes a second dielectric material different from the first dielectric material.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 22, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-hyoung Ahn, Youn-soo Kim, Jae-hyoung Choi, Jae-wan Chang, Sun-min Moon, Jin-sun Lee