Patents by Inventor Won-taek Kim

Won-taek Kim 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: 20240113304
    Abstract: Disclosed is a cathode for a lithium secondary battery, which has a coating layer formed on an edge portion of a cathode plate, a method of manufacturing the cathode, and a lithium secondary battery including the cathode. The cathode includes a cathode plate and a coating layer formed at an edge portion of the cathode plate, in which the cathode plate includes a cathode current collector provided with cathode tab and a cathode active material laminated on at least one surface of the cathode current collector, and the coating layer includes a conductive polymer layer and an insulating coating layer.
    Type: Application
    Filed: July 3, 2023
    Publication date: April 4, 2024
    Inventors: Won Joon JANG, Hyun Je KIM, Tae Seob OH, Seong Hwan LEE, Seung Taek LEE, Chan Sub LEE
  • Publication number: 20240106073
    Abstract: Provided are a separator coating composition for a secondary battery including inorganic particles and a silane salt compound having a specific structure, a separator using the same, and an electrochemical device including the same. Specifically, a separator coating composition for a secondary battery which implements adhesion between an inorganic material layer and a porous substrate without including an acid/polymer-based organic binder in a coating composition for forming the inorganic material layer on one or both surfaces of the porous substrate and does not need a separate dispersing agent for dispersing the inorganic particles, a separator manufactured using the same, and an electrochemical device including the separator are provided.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 28, 2024
    Inventors: Tae Wook KWON, Sang Ick LEE, Won Sub KWACK, Cheol Woo KIM, Hyo Shin KWAK, Heung Taek BAE
  • Publication number: 20240090805
    Abstract: According to one embodiment, a method by which a device provides a service so as to enable cognitive function rehabilitation by using a virtual object model comprises the steps of: generating a virtual object model in a virtual space matched to correspond to a real space where a subject is located; generating a plurality of first preliminary stimuli for identifying egocentric neglect in the visual range of the subject on the basis of the virtual object model; obtaining and collecting first reaction information about whether the subject has recognized the first preliminary stimuli; determining an egocentric cognition range in which the subject can egocentrically recognize visual stimuli on the basis of the first reaction information; sequentially generating a plurality of second preliminary stimuli for identifying allocentric neglect in the egocentric cognition range on the basis of the virtual object model; obtaining and collecting second reaction information about whether the subject has recognized the secon
    Type: Application
    Filed: November 5, 2021
    Publication date: March 21, 2024
    Inventors: Sung Min CHO, Won Seok KIM, Jung Taek PARK, Young Hoo CHO
  • Patent number: 8503041
    Abstract: Disclosed are a scanner and an image reading apparatus including the same. The scanner can include a transparent plate, a scanning unit configured to scan a document on the transparent plate, a first sensor and a second sensor. The first sensor is positioned in a first document zone that is associated with an area in which a first document type is to be positioned based on a first alignment reference point provided on the transparent plate. The second sensor is positioned in a second document zone that is associated with an area in which a second document type of a different size is positioned based on a second alignment reference point provided on the transparent plate. The first document zone and the second document zone are non-overlapping zones. The document type and/or orientation can be determined based on the detection signals from the first and second sensors.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: August 6, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-Taek Kim
  • Patent number: 8131175
    Abstract: An image forming apparatus has a structure that it is able to clean an ACR sensor in accordance with an ACR operation, and without requiring a user manipulation. The image forming apparatus includes a plurality of photosensitive media on which color images are formed respectively, a transfer unit to receive color images from the plurality of photosensitive media and transfer the received color images onto a printing medium, an auto color registration (ACR) unit to perform the ACR operation with respect to the transferred image, and a cleaning member to clean the ACR unit in association with the ACR operation. A method of cleaning an ACR sensor in an image forming apparatus is also provided.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: March 6, 2012
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Publication number: 20110181920
    Abstract: An image reading apparatus and a control method thereof, which enable accurate determination of a document size. The image reading apparatus includes a cover provided with a mark pattern having a preset length to sense a width of a document, a light source to irradiate light to a region where the mark pattern is formed, an image sensor to produce an image upon receiving the light reflected from the region where the mark pattern is formed, and a controller to determine the width of the document based on a length of a region of the produced image where a constant pixel value is sensed.
    Type: Application
    Filed: December 28, 2010
    Publication date: July 28, 2011
    Inventor: Won Taek Kim
  • Patent number: 7717415
    Abstract: A paper feeding device which includes a pickup roller assembly picking up a sheet of paper and transferring the paper, a stopper controlling the paper so that a front end of the paper is located on a lower portion of the pickup roller, a sensing unit sensing whether the paper is loaded or not on the paper feeding board, and a probe unit that is rotated with the stopper and turns on/off the sensor unit. Therefore, the probe unit for turning the sensor unit on/off is operated with the stopper to reduce the number of components, thus reducing the cost and stabling the quality of product.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: May 18, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-taek Kim, Myung-woo Yang
  • Publication number: 20100103480
    Abstract: Disclosed are a scanner and an image reading apparatus including the same. The scanner can include a transparent plate, a scanning unit configured to scan a document on the transparent plate, a first sensor and a second sensor. The first sensor is positioned in a first document zone that is associated with an area in which a first document type is to be positioned based on a first alignment reference point provided on the transparent plate. The second sensor is positioned in a second document zone that is associated with an area in which a second document type of a different size is positioned based on a second alignment reference point provided on the transparent plate. The first document zone and the second document zone are non-overlapping zones. The document type and/or orientation can be determined based on the detection signals from the first and second sensors.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Won-Taek KIM
  • Patent number: 7668499
    Abstract: An image reading and/or reproducing apparatus, including a single sided document feeding tray and a double sided document feed tray to each supply a stack of documents to the apparatus; a document feeding unit to feed a document from a top of the stack of documents in the single sided document feeding tray, and to feed a document from a bottom of the stack of documents in the double sided document feeding tray; and an image scan unit to scan an image of the document fed from the document feeding unit. The apparatus further includes a reverse unit to position the double-sided document, fed by the document feeding unit, upstream of the image scan unit as the image scan unit completes a scanning of the image on a first side of the document such that the image scan unit may scan the image on a second side of the document. According to the above structure, reducing a time required to scan an image is possible.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: February 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Patent number: 7571905
    Abstract: An automatic document feeding (ADF) device includes a document feed tray wherein documents are stacked, a shaft rotatably disposed on the document feed tray, an automatic document feeding roller rotatably coupled to the shaft and transporting the documents one by one, a bracket rotatably coupled to the shaft, a pick-up roller rotatably coupled to the bracket and picking up the documents stacked on the document feed tray by using a rotating force received from the shaft, a document stopper disposed to be able to rotate about the same axis as the pick-up roller rotates about and limiting a movement of the documents stacked on the document feed tray, a latch arm locking the document stopper to limit the movement of the documents and prevent the document stopper from rotating, and a flag rotatably coupled to the shaft and pushing the latch arm to unlock the document stopper.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: August 11, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Publication number: 20080304119
    Abstract: An image forming apparatus has an improved structure, so that it is able to clean an ACR sensor in accordance with an ACR operation, and without requiring a user manipulation. The image forming apparatus includes a plurality of photosensitive media on which color images are formed respectively, a transfer unit to receive color images from the plurality of photosensitive media and transfer the received color images onto a printing medium, an auto color registration (ACR) unit to perform the ACR operation with respect to the transferred image, and a cleaning member to clean the ACR unit in association with the ACR operation.
    Type: Application
    Filed: March 4, 2008
    Publication date: December 11, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Publication number: 20080018044
    Abstract: An automatic document feeding apparatus includes a shaft, an ADF roller for feeding documents piece by piece by cooperating with a separating member, and a power switching member for selectively connecting a driving member with the shaft. The power switching member is installed on the shaft. The ADF roller is also mounted on the shaft such that the ADF roller can rotate by receiving a torque only in a first direction.
    Type: Application
    Filed: August 8, 2007
    Publication date: January 24, 2008
    Inventor: Won-Taek Kim
  • Patent number: 7296790
    Abstract: An automatic document feeding apparatus includes a shaft, an ADF roller for feeding documents piece by piece by cooperating with a separating member, and a power switching member for selectively connecting a driving member with the shaft. The power switching member is installed on the shaft. The ADF roller is also mounted on the shaft such that the ADF roller can rotate by receiving a torque only in a first direction.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: November 20, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-Taek Kim
  • Publication number: 20070097454
    Abstract: A scanning module including a light source to project light onto a document to be read, a lens unit to focus an optical signal read from the document being illuminated by the projected light, a plurality of mirrors to form an optical path from the light source to the lens unit, an image sensor to convert the optical signal focused by the lens unit into an electrical signal, a frame to house the light source, the lens unit, the mirrors, and the image sensor, and a fan to circulate air inside the frame.
    Type: Application
    Filed: October 24, 2006
    Publication date: May 3, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Publication number: 20070089271
    Abstract: A hinge unit applies resilience differently according to the angle at which the hinge unit is opened, and an image forming apparatus has a cover attached by the hinge unit. The hinge unit includes a lower frame connected to a scan unit of a main body of an apparatus; an upper frame engaged with the lower frame through a hinge shaft and connected to a cover; and first and second resilient members serially arranged within the upper frame. When the cover pivots toward the scan unit at less than a predetermined angle, the hinge unit provides relatively minor resistance, whereas when the cover pivots toward the scan unit at the predetermined angle or greater, the hinge unit provides relatively greater resistance, thereby appropriately coping with the moment by weight of the cover. As a result, the improved hinge unit may enable a user to open and close the cover more comfortably.
    Type: Application
    Filed: July 11, 2006
    Publication date: April 26, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyoo-sang Jo, Won-taek Kim
  • Publication number: 20060170989
    Abstract: An image reading and/or reproducing apparatus, including a single sided document feeding tray and a double sided document feed tray to each supply a stack of documents to the apparatus; a document feeding unit to feed a document from a top of the stack of documents in the single sided document feeding tray, and to feed a document from a bottom of the stack of documents in the double sided document feeding tray; and an image scan unit to scan an image of the document fed from the document feeding unit. The apparatus further includes a reverse unit to position the double-sided document, fed by the document feeding unit, upstream of the image scan unit as the image scan unit completes a scanning of the image on a first side of the document such that the image scan unit may scan the image on a second side of the document. According to the above structure, reducing a time required to scan an image is possible.
    Type: Application
    Filed: December 19, 2005
    Publication date: August 3, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Publication number: 20060072949
    Abstract: A duplex-image reading apparatus and a method for the same. The duplex-image reading apparatus comprises a document feeding path along which a document supplied from a document supply tray is passed through an image reading unit for an image reading operation and discharged to the outside of a main body of the duplex-image reading apparatus by a discharging roller, a document returning unit for returning a feeding direction of the document being discharged by the discharging roller, so that a rear end of the document becomes a leading end, a sensor mounted on the document feeding path to detect a length of the document, and at least two document returning paths having different lengths according to the length of the document detected by the sensor. Accordingly, generation of an unnecessary path can be restrained by varying the document returning path when returning the document according to the length of the document, and therefore image reading speed can be improved.
    Type: Application
    Filed: September 28, 2005
    Publication date: April 6, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Won-taek Kim
  • Publication number: 20060045564
    Abstract: A color image forming apparatus is provided capable of easily assembling and controlling the elements relating to color registration and image quality. The apparatus includes an image forming module having a plurality of image forming units, exposure units, a transfer unit and an integrally formed image forming frame, and a main body in which the image forming module is detachably mounted by use of positioning members. Upon assembling the plurality of image forming units, exposure units and the transfer unit in the image forming frame, distances between the former elements are always maintained constant.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 2, 2006
    Inventors: Byung-Sun Ahn, Won-Taek Kim, Soo-Yong Jung, Dong-Ha Choi
  • Patent number: 6991227
    Abstract: A sheet feeding apparatus for a printing device includes a pickup roller and a feeding roller picking up sheets loaded on a tray and feeding the sheets into a sheet feeding path, respectively, a rotation member installed on a rotation shaft of the feeding roller to support and rotate the pickup roller at a free end, a relay gear engaging the feeding roller and the pickup roller, a clutch unit selectively transferring a raising force of the rotation shaft to the rotation member, and a stopper installed in the rotation member to be elevated and lowered with respect to the rotation member to block a path between the pickup roller and the feeding roller. Accordingly, since the pickup roller is raised to allow the sheets to be loaded and then lowered after the sheets are loaded on the tray, front ends of the sheets are automatically inserted under the pickup roller.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: January 31, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-taek Kim
  • Publication number: 20060012104
    Abstract: An automatic document feeder with an anti-skew function is disclosed. The automatic document feeder comprises a pick up roller for feeding documents loaded on a tray, a feed roller for transferring the fed documents toward document scanning means; and an intermediate roller disposed just before the feed roller to transfer the documents toward the feed roller. The Intermediate roller has a document feed speed on a surface thereof faster than that of the feed roller. It is possible to prevent skew from occurring between the REGI roller or the intermediate roller and the feed roller by merely adjusting a linear velocity of the REGI roller or the intermediate roller, thereby improving document feeding performance and extending a lifetime of the device such as a motor since a driving system has no additional load.
    Type: Application
    Filed: April 20, 2005
    Publication date: January 19, 2006
    Inventor: Won-Taek Kim