Patents by Inventor Wan Chu

Wan Chu 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: 8674427
    Abstract: A nonvolatile memory device and a method of manufacturing thereof are provided. The method includes forming a floating gate on a substrate, forming a dielectric layer to conform to a shape of the floating gate, forming a conductive layer to form a control gate on the substrate, the control gate covering the floating gate and the dielectric layer, forming a photoresist pattern on one side of the conductive layer, forming the control gate in the form of a spacer to surround sides of the floating gate, the forming of the control gate including performing an etch-back on the conductive layer until a portion of the dielectric layer on the floating gate is exposed, and forming a poly pad, to which a plurality of contact plugs are connected, on one side of the control gate, the forming of the poly pad including removing the photoresist pattern.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 18, 2014
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Jeong-ho Cho, Jung-goo Park, Min-wan Chu, Doo-yeol Ryu
  • Publication number: 20130099301
    Abstract: A nonvolatile memory device and a method of manufacturing thereof are provided. The method includes forming a floating gate on a substrate, forming a dielectric layer to conform to a shape of the floating gate, forming a conductive layer to form a control gate on the substrate, the control gate covering the floating gate and the dielectric layer, forming a photoresist pattern on one side of the conductive layer, forming the control gate in the form of a spacer to surround sides of the floating gate, the forming of the control gate including performing an etch-back on the conductive layer until a portion of the dielectric layer on the floating gate is exposed, and forming a poly pad, to which a plurality of contact plugs are connected, on one side of the control gate, the forming of the poly pad including removing the photoresist pattern.
    Type: Application
    Filed: May 11, 2012
    Publication date: April 25, 2013
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Jeong-ho Cho, Jung-goo Park, Min-wan Chu, Doo-yeol Ryu
  • Patent number: 7541095
    Abstract: The disclosed invention relates to black multi-layer coatings for metallic substrates (1) or substrates having a metallic coating (2) and to articles covered, or partially covered with such coatings. The black coating consists of a black first layer (3) substantially comprised of nickel and a second polymeric silicate inorganic layer (4). The present invention may additionally have a third layer comprised substantially of organic constituents (5). This invention offers properties currently unavailable or insufficient in existing technologies. The present invention provides enhanced corrosion resistant, adherent black coatings which are thin enough to allow application to fasteners while providing a uniform black color, the combination of which have only been available previously with the use of hexavalent or trivalent chromium conversion coatings.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: June 2, 2009
    Assignees: Elisha Holding LLC, Kismart Corporation
    Inventors: Wan-Chu Wu, Wei-Liang Yang, Wen-Chi Chang
  • Publication number: 20080259633
    Abstract: The invention relates to a soft light-transportable tube, which connect with a lighting apparatus at one end or both ends. The soft tube is made of light-transportable material, which has a lot of tiny apertures formed evenly therein to reflect ray emitted from the lighting apparatus again and again in order that the entire tube can lightened. Hence, the decoration formed by the tube display a perfect lighting effect with improvement and utilization.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 23, 2008
    Inventor: Wan-Chu Wang
  • Publication number: 20080243382
    Abstract: A method for providing crossroad information using a navigation system mounted to a vehicle includes searching a map database to extract information on a driving route to a destination, extracting information on crossroads present in the driving route, and providing a drive guide image to a display panel, the driving guide image including a map of an area around a current position of the vehicle, a traveling direction in the driving route and a number of remaining crossroads, wherein the number of remaining crossroads decreases each time the vehicle passes through the remaining crossroads. The method further includes providing a turn symbol which indicates a target turning direction of the vehicle and representing the turn symbol at or around a road intersection of a turning point in the drive guide image, when the vehicle passes through a last remaining crossroad left before the turning point.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 2, 2008
    Applicant: SK C&C Co., Ltd.
    Inventor: Kyung Wan Chu
  • Publication number: 20080102297
    Abstract: The disclosed invention relates to black multi-layer coatings for metallic substrates (1) or substrates having a metallic coating (2) and to articles covered, or partially covered with such coatings. The black coating consists of a black first layer (3) substantially comprised of nickel and a second polymeric silicate inorganic layer (4). The present invention may additionally have a third layer comprised substantially of organic constituents (5). This invention offers properties currently unavailable or insufficient in existing technologies. The present invention provides enhanced corrosion resistant, adherent black coatings which are thin enough to allow application to fasteners while providing a uniform black color, the combination of which have only been available previously with the use of hexavalent or trivalent chromium conversion coatings.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Applicants: ELISHA HOLDING LLC, KISMART CORPORATION
    Inventors: Wan-Chu Wu, Wei-Liang Yang, Wen-Chi Chang
  • Publication number: 20080049199
    Abstract: The invention relates to an improved slide projector with multiple projection sections, which includes at least two lighting sources controlled by an IC therein. The projector has a head with multiple projection sections on its lens and a slot for receiving a slide, which is provided with multiple drawings relating to a lighting source. The slide projector can provide an action projection shows when the lighting sources are lightened in series that obtains a utilized effect.
    Type: Application
    Filed: August 22, 2006
    Publication date: February 28, 2008
    Inventor: Wan-Chu Wang
  • Publication number: 20080030992
    Abstract: The invention relates to a lighting decoration, which includes two symmetrical transparent shells to form a single body being connected with a support. The decoration is provided with several condensing boards while the shells are formed with preset figures having several relating independent areas. Each condensing board is provided with at least one lighting object nearby. Under control of the lighting objects, the decoration can display various lighting outlooks brightly and clearly that obtains the best decorative effect.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Inventor: Wan-Chu Wang
  • Publication number: 20070079858
    Abstract: A collapsible structure having a first fabric-covered frame defining a first side panel, a second fabric-covered frame defining a second side panel, a fabric sheet mounted on and extending along the first and second fabric-covered frames; and a plurality of frame supports mounted on the fabric sheet whereby folding of the frame supports drives the first and second side panels towards a collapsed and superimposed position, and unfolding of the frame supports drives the first and second side panels towards a spaced apart and expanded position, and wherein the first and second side panels in the collapsed and superimposed position can be twisted and folded into a compact configuration.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 12, 2007
    Inventors: Wan Chu, Lai Wu
  • Publication number: 20060227530
    Abstract: The invention relates to a patterned decoration connected with ELY (electro luminescent wire), which includes a patterned decoration and ELY being connected around the circumstance. The ELY can be lightened by either DC or AC without any tungsten bulb or LED provided. Hence, the ELY decoration can provides better decorative effect showing the special obvious outlook whenever at day or at night.
    Type: Application
    Filed: April 11, 2005
    Publication date: October 12, 2006
    Inventor: Wan-Chu Wang
  • Publication number: 20060049597
    Abstract: A vehicle includes a chassis, a transmission shaft, a linkage, and a seat. The chassis has two front wheel units pivotally mounted thereto. The transmission shaft is rotatably mounted to the chassis. The linkage is connected between the transmission shaft and the two front wheel units for turning the two front wheel units upon rotation of the transmission shaft. The seat is fixedly mounted on the transmission shaft for the user sitting thereon to turn the transmission shaft and to further turn the two front wheel units relatively to the chassis.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 9, 2006
    Applicant: J.D. Corporation
    Inventors: Kun-Do Chan, Wan-Chu Hung
  • Patent number: 6492467
    Abstract: A process for the preparation of a blend of ABS polymers is disclosed. The invention comprises introducing a core/shell grafted rubber in the form of powder (crumb) to at least one stage of the continuous mass polymerization process for making an ABS polymer.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: December 10, 2002
    Assignee: Bayer Corporation
    Inventors: Joong-In Kim, Wan Chu Wu