Patents by Inventor Cheol Lim

Cheol Lim 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).

  • Lens driving device and camera module including the same
    Patent number: 9329402
    Abstract: A lens driving device includes a lens barrel supporting a lens; an autofocusing driving unit disposed on one side of a plane perpendicular to an optical axis direction based on the lens barrel to thereby drive the lens barrel in the optical axis direction; and a hand-shake prevention driving unit disposed on sides of the plane perpendicular to the optical axis direction other than the one side on which the autofocusing driving unit is disposed, to thereby drive the lens in a direction perpendicular to the optical axis direction.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 3, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Soo Cheol Lim, Chul Jin Kim, Jae Hyuk Lee, Sung Ryung Park
  • Thermoplastic Resin Composition and Molded Article Using the Same
    Publication number: 20160090470
    Abstract: A thermoplastic resin composition includes (A) a polyester resin, (B) inorganic fillers, and (C) a white pigment, wherein at least one of the (B) inorganic fillers and the (C) white pigment is subjected to surface treatment with a silicone compound, and silicon is present in an amount of about 0.3 wt % to about 2 wt % based on the total weight of (A), (B), and (C).
    Type: Application
    Filed: September 23, 2015
    Publication date: March 31, 2016
    Inventors: Chan Moo PARK, Tae Gon KANG, Yoo Jin JUNG, Jong Cheol LIM, Sang Hyun HONG
  • Polycarbonate resin composition having good chemical resistance
    Patent number: 9290655
    Abstract: A polycarbonate resin composition includes (A) a polycarbonate resin, (B) syndiotactic polystyrene, and (C) modified polyolefin compound including a polar functional group on a polyolefin backbone. The polycarbonate resin compositions can have excellent chemical resistance, impact resistance, weathering resistance, fatigue resistance, thermal stability, mechanical properties, transparency, and/or molding processability.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 22, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Jung Ki Kim, Eun Taek Woo, Na Ri Park, Jae Hyun Han, Jong Cheol Lim
  • Tubular integrated light emitting diode (LED) lamp housing having a heat radiation section and a light transmission section and method for making the same
    Patent number: 9283703
    Abstract: An integrated LED lamp housing can include a heat radiation section and a light transmission section. The integrated LED lamp housing can be prepared by co-extruding different polycarbonate resin compositions.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 15, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Chan Gyun Shin, Hoo Seok Lee, Nam Hyun Kim, Jeong Won Lee, Jong Cheol Lim
  • Polyamide-Based Resin Composition Having Excellent Flexural Modulus and Impact Strength
    Publication number: 20160053093
    Abstract: Disclosed is a polyamide-based resin composition comprising (A) 20 to 60% by weight of an aliphatic polyamide resin having 16 to 24 carbon atoms, and (B) 40 to 80% by weight of a glass fiber having a fibrous shape and a ratio of a short axis to a long axis of 1:2 to 1:6 in cross section. The polyamide-based resin composition according to the present invention exhibits excellent flexural modulus and impact strength.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 25, 2016
    Inventors: Jae Hyun Han, Eun Taek Woo, Jung Ki Kim, Jong Cheol Lim
  • Thermoplastic Rubber Composition and Molded Product Using Same
    Publication number: 20160046802
    Abstract: Disclosed is a thermoplastic rubber composition comprising, based on 100 parts by weight of a block terpolymer (A) of an aromatic vinyl compound and an alkene compound, 50 to 100 parts by weight of a paraffin oil (B), 30 to 70 parts by weight of an inorganic additive (C), 5 to 30 parts by weight of a polyolefin-based resin (D), and 30 to 70 parts by weight of an acryl-based resin (E). The hardness of the thermoplastic rubber composition may be freely adjusted and the thermoplastic rubber composition has a bonding strength of 2 to 4 N/mm as measured using a UTM according to a KS M 6518 peeling test method. Accordingly, bonding strength thereof to a thermoplastic resin is increased even without addition of an adhesive.
    Type: Application
    Filed: June 26, 2013
    Publication date: February 18, 2016
    Inventors: Jung Wook Kim, Chan Gyun Shin, Jong Cheol Lim
  • SEMICONDUCTOR DEVICE
    Publication number: 20160034216
    Abstract: A semiconductor device includes a first processing unit configured to perform a calculation by using data stored in a memory; and a memory path controller configured to communicate with the first processing unit and control the memory for the first processing unit to perform the calculation, wherein the memory path controller includes an address region control unit configured to divide an address space of the memory to include a secure address and a non-secure address and permit the first processing unit to access the secure address or the non-secure address, and a first content firewall unit connected with the address region control unit and configured to prevent the first processing unit from writing secure contents in the non-secure address.
    Type: Application
    Filed: March 31, 2015
    Publication date: February 4, 2016
    Inventors: Woo-Hyung Chun, Min-Je Jun, Sim-Ji Lee, Eui-Cheol Lim, Seong-Min Jo, Sung-Min Hong
  • OPTICAL IMAGE STABILIZER DETECTING X DIRECTION DISPLACEMENT AND Y DIRECTION DISPLACEMENT OF LENS GROUP
    Publication number: 20160004091
    Abstract: An optical image stabilizer, in which a magnet and a coil are arranges such that they oppose each other. The Hall sensor is arranged such that one face thereof is opposed to one face of the magnet. The Hall sensor can easily detect the location of a group of lenses by generating a corresponding signal in response to a variation in magnetic force following a variation in the gap between magnets depending on the direction in which a group of lenses is driven, and simultaneously, in response to a variation in magnetic force that occurs when the group of lenses is displaced in the direction that intersects the direction of the gap.
    Type: Application
    Filed: September 14, 2015
    Publication date: January 7, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Soo Cheol LIM, Byung Woo KANG, Sang Min OH
  • CAMERA MODULE
    Publication number: 20150373272
    Abstract: A camera module includes first and second frames accommodated in housing, and a hand-shake correction unit. The hand-shake correction unit is provided on the first frame or the second frame and configured to generate a driving force in a direction perpendicular to an optical axis of a lens accommodated in the first and second frames. Sidewalls of the housing opposite to each other comprise different thicknesses.
    Type: Application
    Filed: May 21, 2015
    Publication date: December 24, 2015
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Soo Cheol LIM, Sung Ryung PARK, Chul Jin KIM, Jae Hyuk KIM, Oh Byoung KWON, Byung Woo KANG
  • CAMERA MODULE
    Publication number: 20150346587
    Abstract: There is provided a camera module including: a housing unit; a lens unit which is movable relative to the housing unit in an optical axis direction and directions perpendicular with respect to an optical axis; and an actuator unit moving the lens unit, wherein corners of the housing unit are provided with flat surfaces which are inclined with respect to an optical axis of the lens unit.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Soo Cheol LIM, Chul Jin KIM, Oh Byoung KWON, Sung Ryung PARK, Jae Hyuk LEE
  • IMAGING APPARATUS AND CONTROL METHOD THEREOF
    Publication number: 20150304562
    Abstract: An imaging apparatus including an imaging unit, a lens transferring means, and an image processing device. The image processing device may include a controlling unit, an illuminance sensing unit, an image storing unit, an image processing unit, a noise removing unit, a memory, and a displaying unit. Therefore, hand shaking at the time of capturing an image may be compensated for by the lens transferring means, and an exposure time may be compensated for by synthesizing luminance information of several images with the image processing device, whereby a clear image may be obtained even in a low luminance environment.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Min On, Sung Ryung Park, Soo Cheol Lim, Byung Woo Kang, Chul Jin Kim
  • CAMERA MODULE
    Publication number: 20150296112
    Abstract: There is provided a camera module including a plurality of ball bearings to support the driving of a lens barrel at the time of compensating for unintended camera movement due to disturbance such as hand shake. The lens barrel may be driven in first and second directions, independently, by one driving force exerted in the first direction perpendicular to an optical axis and by another driving force exerted in the second direction perpendicular to both the optical axis and the first direction, thereby preventing driving displacement from being generated at the time of compensating for unwanted motion such as hand shake while securing reliability against external impact, and having reduced power consumption at the time of compensating for the disturbance.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 15, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Ryung PARK, Oh Byoung KWON, Soo Cheol LIM, Byung Woo KANG
  • CAMERA MODULE
    Publication number: 20150296143
    Abstract: A camera module including a lens unit configured to move in a direction of an optical axis and a direction perpendicular with respect to the optical axis; a housing unit accommodating the lens unit; and a shock absorbing member disposed between the housing unit and the lens unit to reduce impacts and noise generated when the housing unit and the lens unit collide.
    Type: Application
    Filed: March 16, 2015
    Publication date: October 15, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Woo KANG, Oh Byoung KWON, Soo Cheol LIM, Kwang Joon HAN
  • Polyester resin composition
    Patent number: 9150704
    Abstract: A polyester resin composition comprises (A) about 100 parts by weight of polyester resin with a melting point greater than about 200° C. and including repeat units of Formula 1; (B) about 0.1 to about 80 parts by weight of white pigment; and (C) about 0.01 to about 80 parts by weight of filler. The polyester resin composition of the present invention does not exhibit deteriorated reflectance and impact strength and also has good heat resistance, non-yellowing property and humidity resistance and can be used in a light emitting diode (LED) reflector.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: October 6, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Pil Ho Kim, Sun Ho Song, In Sik Shim, Sang Hwa Lee, Jong Cheol Lim
  • Lens driving device and camera module including the same
    Patent number: 9151965
    Abstract: A lens driving device includes a lens barrel supporting a lens; an autofocusing driving unit disposed on one side of a plane perpendicular to an optical axis direction based on the lens barrel to thereby drive the lens barrel in the optical axis direction; and a hand-shake prevention driving unit disposed on sides of the plane perpendicular to the optical axis direction other than the one side on which the autofocusing driving unit is disposed, to thereby drive the lens in a direction perpendicular to the optical axis direction.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 6, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Soo Cheol Lim, Chul Jin Kim, Jae Hyuk Lee, Sung Ryung Park
  • Polyester Resin Composition Having Improved Mechanical Properties and Moldability
    Publication number: 20150280085
    Abstract: A polyester resin composition includes: (A) a polyester resin which includes a polymer of a dicarboxylic acid component including an aromatic dicarboxylic acid and a diol component including an alicyclic diol having a trans/cis isomer ratio of about 2.3 or more; (B) a white pigment; and (C) inorganic fillers. A molded article formed from the polyester resin composition can exhibit improved mechanical properties and moldability, and thus can be suitable for light emitting diode (LED) reflectors.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 1, 2015
    Inventors: Tae Gon KANG, Chan Moo PARK, Yoo Jin JUNG, Jong Cheol LIM, Sang Hyun HONG, Tae Soo KIM, Young Ho PARK
  • Electronic document communication system and electronic document communication method
    Patent number: 9143358
    Abstract: The present invention relates to an electronic document communication system and to an electronic document communication method, which can construct an electronic document communication system for providing not only enterprise/institutions with reliability, but also individuals and small companies.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 22, 2015
    Assignee: NATIONAL IT INDUSTRY PROMOTION AGENCY
    Inventors: Dae Seob An, Jung Gu Lee, Seong Pil Kong, Yeong Cheol Lim
  • Optical image stablilizer detecting X direction displacement and Y direction displacement of lens group
    Patent number: 9134587
    Abstract: An optical image stabilizer, in which a magnet and a coil are arranged such that they oppose each other. The Hall sensor is arranged such that one face thereof is opposed to one face of the magnet. The Hall sensor can easily detect the location of a group of lenses by generating a corresponding signal in response to a variation in magnetic force following a variation in the gap between magnets depending on the direction in which a group of lenses is driven, and simultaneously, in response to a variation in magnetic force that occurs when the group of lenses is displaced in the direction that intersects the direction of the gap.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: September 15, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Soo Cheol Lim, Byung Woo Kang, Sang Min On
  • Semiconductor memory device and method of operating the semiconductor memory device
    Patent number: 9128633
    Abstract: A method of operating a semiconductor memory device includes receiving a timeout index signal corresponding to a master of the first master group based on a residual capacity of a data buffer of the first master, setting a first timeout value in response to the timeout index signal, and changing an execution order of commands stored in a queue of the semiconductor memory device based on a result of counting the first timeout value and counting a second timeout value corresponding to a master of the second master group.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: September 8, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Eui Cheol Lim
  • Polyester Resin Composition Having Improved Mechanical Properties and Anti-Discoloration
    Publication number: 20150247035
    Abstract: A polyester resin composition comprises: (A) a first polyester resin having a melting temperature of greater than about 285° C.; (B) a second polyester resin having a melting temperature of less than or equal to about 285° C.; (C) a white pigment; and (D) an inorganic filler. The polyester resin composition may exhibit improved mechanical properties and discoloration resistance and can be used in a molded article, for example, as a LED reflector.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 3, 2015
    Inventors: Yoo Jin JUNG, Tae Gon KANG, Chan Moo PARK, Jong Cheol LIM, Sang Hyun HONG