Patents by Inventor Won-bong Cho

Won-bong Cho 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: 11969693
    Abstract: Provided is an ultra large-width coating device applied to a consecutive process. More particularly, the present invention relates to a coating device capable of maximizing productivity by consecutively manufacturing a large-width film without reducing physical properties of the manufactured film by overcoming a problem in that a coating width is limited during a coating process using the existing contact type coating roller, and a method for manufacturing an ultra large-width membrane using the same.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: April 30, 2024
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Dong Jin Joo, Kyu Young Cho, Yun Bong Kim, Su Ji Lee, Won Sub Kwack, Hye Jin Kim
  • Publication number: 20230140297
    Abstract: Provided is a method for manufacturing a brake pad used in a brake of a vehicle, which is capable of improving a limitation of separation of a friction material and a back plate of the brake pad. The method for manufacturing the brake pad includes manufacturing an intermediate plate and integrally pressing and molding a back plate and a friction material on both surfaces with the intermediate plate manufactured in a mold therebetween so that the back plate and the friction material are integrally coupled to each other by using the intermediate plate as a medium to manufacture the brake pad.
    Type: Application
    Filed: September 13, 2022
    Publication date: May 4, 2023
    Inventors: Won-Bong CHO, Sung-Ki LEE, Yun-Hee KWON
  • Publication number: 20230016971
    Abstract: Provided is a caliper unit for a brake of a vehicle, in particular, a compact caliper unit capable of reducing a size, a weight, and a production cost of a component and improving fuel efficiency. The caliper unit for the brake includes an inner pad and an outer pad, which press both surfaces of a disc to generate braking force, a torque member fixed to a vehicle body and coupled to be movable forward and backward so that the inner pad and the outer pad press the disc, or the pressing of the inner pad and the outer pad to the disc is released, a caliper housing including a cylinder to which a brake hydraulic pressure is applied and a reaction force support part configured to press the outer pad to the disc, and a piston installed in the cylinder and moving forward and backward depending on a state of the brake hydraulic pressure applied to the cylinder to press the inner pad to the disc.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 19, 2023
    Inventors: Won-Bong CHO, Sung-Ki LEE, Yun-Hee KWON
  • Publication number: 20180274608
    Abstract: The present disclosure provides a brake apparatus comprising: a single monolithic brake shoe having a circular shape, wherein the shoe has a spacing defined therein at a predetermined location thereof; an actuator disposed in the spacing, wherein the actuator includes a hollow cylinder an a piston slidably contained in the cylinder, wherein when the actuator is activated, the spacing increases; and a brake lining lined on an outer face of the brake shoe, wherein when the spacing increases, the lining selectively contacts a brake drum, wherein the piston is step-shaped such that a braking force of the brake apparatus having the single monolithic brake shoe is substantially equal to a braking force of a brake apparatus having two individual brake shoes.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 27, 2018
    Inventors: Won Bong CHO, Yul Hee LEE, Sang Ji LEE
  • Publication number: 20180100553
    Abstract: Disclosed herein is a single shoe-type brake apparatus. The single shoe-type brake apparatus includes: an integrated sideways ā€œUā€-shaped single brake shoe configured to form an open ring shape, to be integrated into a single body, and to have a separation region on one side thereof so that it is subjected to external force in a direction where it is extended to both sides thereof; a cylinder installed in the separation region, and configured to provide the external force; and a friction material coupled to the outer circumferential surface of the brake shoe, and installed to selectively come into contact with a brake drum as the brake shoe is extended. The friction coefficient of the friction material is considerably lower than that of a common brake friction material, and a brake factor is almost identical to that of a brake apparatus having two shoes.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 12, 2018
    Inventors: Won Bong CHO, Yul Hee LEE, Sang Ji LEE
  • Patent number: 6598091
    Abstract: A method and a medium for rendering documents to a browser from a server are provided. According to the rendering method, the browser requests a predetermined document and at the same time transmits user's computing environmental information to the server. The server evaluates the computing environmental information received from the browser. The server converts the requested document based on the evaluated user's computing environmental information. The server transmits the converted document to the browser. The server renders the documents to the browser in an appropriate manner by including only the information accessible in compliance to the user's computing environmental information, or converting it into the document accessible by the user. Thus, the data volume to be processed by the browser as well as the network traffic are reduced, and thus the document transfer rate is enhanced. In addition, the user having a limited computing environment can sufficiently utilize the documents.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: July 22, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Hee Yoo, Won Bong Cho, Min Seop Lee
  • Patent number: 6332156
    Abstract: An e-mail processing method for transmitting an activity program along with data, to thereby perform various forms of activities upon reception of e-mail. The sender first creates a message having a message header and a message body including data which is to be sent to a receiver. If the sender wishes to designate an activity for the receiver, the sender creates an activity program to perform the activity, attaches the activity program to the message, and sends the activity program along with the data. When the receiver receives the message, it is determined whether the activity program is attached to the received message. If the activity program is attached to the received message, the activity program is executed.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: December 18, 2001
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Won-bong Cho, Sang-youl Lee, Ho-woong Hwang
  • Patent number: 5910194
    Abstract: An automatic parking brake cable tension adjustment apparatus includes a first connecting member attached by a cable to a brake handle, a first pivoting member, a second pivoting member, a mechanical linkage between the first and second pivoting member, and a second connecting member attached by a cable to a parking brake. As the brake cable becomes extended past a certain point, the first pivoting member contacts a fixed stop and pivots, thereby pivoting the second pivoting member. A threaded connection between the second pivoting member and the second connecting member rotates, automatically adjusting the tension of the brake cable.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: June 8, 1999
    Assignee: Hyundai Motor Company
    Inventor: Won-bong Cho