Patents by Inventor Won Il Cho

Won Il 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: 7927632
    Abstract: Disclosed are a composition comprising an organic acid extract of Torilidis Fructus, which has a sterilization effect on spores of spore-forming microorganisms including fungi and bacteria, and a method of sterilizing spores and vegetative cells using the composition.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: April 19, 2011
    Assignee: CJ Cheiljedang Corporation
    Inventors: Hee Nam Yoon, Jun Bong Choi, Won Il Cho, Yu Ryang Pyun, Seok Cheol Cho, Moo Chang Kook, Byoung Gon Lee
  • Publication number: 20110002002
    Abstract: A chip mountable on a customer replaceable unit monitory (CRUM) unit used in an image forming job includes a central processing unit (CPU) to perform cryptographic data communication with a main body of an image forming apparatus, using an operating system (OS) of the CPU. The security of a unit on which the chip is mounted can thereby be reinforced and random changes of data of the unit can be prevented.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 6, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-sung LEE, Yoon-tae Lee, Won-il Cho
  • Publication number: 20110004768
    Abstract: A chip mountable on a replaceable unit used in an image forming job is disclosed. The chip includes a central processing unit (CPU) to perform at least one of authentication and cryptographic data communication with a main body of the image forming apparatus using an operating system (OS) of the CPU which operates separately from an OS of the image forming apparatus. With the use of such a configuration, security for a unit in which the chip is mounted can thereby be reinforced.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 6, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won-il CHO, Jae-sung Lee, Yoon-tae Lee
  • Publication number: 20110004746
    Abstract: A chip mountable on a customer replaceable unit monitoring memory (CRUM) unit used in an image forming job includes a central processing unit (CPU) with its own operating system (OS), which operates separately from an OS of the image forming apparatus, to perform authentication communication with a main body of the image forming apparatus using the OS of the CPU. The security of a unit on which the chip is mounted can thereby be reinforced and random changes of data of the unit can be prevented.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 6, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Jae-sung LEE, Yoon-tae Lee, Won-il Cho
  • Publication number: 20100092868
    Abstract: Disclosed are a carbon nanotube-coated silicon/metal composite particle, a preparation method thereof, an anode for a secondary battery comprising the carbon nanotube-coated silicon/metal composite particle, and a secondary battery comprising the anode, wherein the carbon nanotube-coated silicon/metal composite particle characterized in comprising: a composite particle of silicon and metal; and a carbon nanotube coated on the surface of the composite particle of silicon and metal, wherein the carbon nanotube-coated silicon/metal composite particle may be prepared by preparing composite particle of silicon and metal, followed by treating the composite particles of silicon and metal with heat under a mixed gas atmosphere of an inert gas and a hydrocarbon gas.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 15, 2010
    Inventors: Hyung-Sun KIM, Byung Won CHO, Kyung Yoon CHUNG, Joong Kee LEE, Won Il CHO
  • Publication number: 20090220077
    Abstract: A chip mountable on a customer replaceable unit monitoring memory (CRUM) unit used in an image forming job includes a central processing unit (CPU) with an operating system (OS) thereof, which is separate from an OS of the image forming apparatus, to perform at least one of authentication and cryptographic data communication with a main body of an image forming apparatus by executing one cryptographic algorithm corresponding to a set state from among a plurality of pre-provided cryptographic algorithms, using the OS thereof. The security of a unit on which the chip is mounted can thereby be reinforced and random changes of data of the unit can be prevented.
    Type: Application
    Filed: January 6, 2009
    Publication date: September 3, 2009
    Applicant: Samsung Electronics Co.,Ltd
    Inventors: Jae-sung Lee, Yoon-tae Lee, Won-il Cho
  • Publication number: 20090222886
    Abstract: A chip mountable on a customer replaceable unit monitoring memory (CRUM) unit used in an image forming job includes a central processing unit (CPU) with its own operating system (OS), which operates separately from an OS of the image forming apparatus, to perform authentication communication with a main body of the image forming apparatus using the OS of the CPU. The security of a unit on which the chip is mounted can thereby be reinforced and random changes of data of the unit can be prevented.
    Type: Application
    Filed: February 17, 2009
    Publication date: September 3, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-sung Lee, Yoon-tae Lee, Won-il Cho
  • Publication number: 20090222664
    Abstract: A chip mountable on a replaceable unit used in an image forming job is disclosed. The chip includes a central processing unit (CPU) to perform at least one of authentication and cryptographic data communication with a main body of the image forming apparatus using an operating system (OS) of the CPU which operates separately from an OS of the image forming apparatus. With the use of such a configuration, security for a unit in which the chip is mounted can thereby be reinforced.
    Type: Application
    Filed: February 9, 2009
    Publication date: September 3, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won-il Cho, Jae-sung Lee, Yoon-tae Lee
  • Publication number: 20090219559
    Abstract: A chip mountable on a customer replaceable unit monitory (CRUM) unit used in an image forming job includes a central processing unit (CPU) to perform cryptographic data communication with a main body of an image forming apparatus, using an operating system (OS) of the CPU. The security of a unit on which the chip is mounted can thereby be reinforced and random changes of data of the unit can be prevented.
    Type: Application
    Filed: February 19, 2009
    Publication date: September 3, 2009
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Jae-sung LEE, Yoon-tae LEE, Won-il CHO
  • Patent number: 7505250
    Abstract: The present invention discloses a carbon-porous media composite electrode material, a composite electrode using the same and a preparation method thereof. The carbon-porous media composite electrode can be applied for a device such as a secondary battery, a capacitor or the like, or for preparing ultra pure water using a capacitive deionization process, purifying salty water or the like.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: March 17, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Byung Won Cho, Won Il Cho, Dong Jin Suh, Chun Mo Yang, Woon Hyuk Choi
  • Publication number: 20090026662
    Abstract: The present invention provides a novel hybrid polymer electrolyte, a lithium secondary battery comprising the hybrid polymer electrolyte polymer and their fabrication methods. More particularly, the present invention provides the hybrid polymer electrolyte comprising superfine fibrous porous polymer matrix with particles having diameter of 1-3000 nm, polymers and lithium salt-dissolved organic electrolyte solutions incorporated into the porous polymer matrix. The hybrid polymer electrolyte has advantages of better adhesion with electrodes, good mechanical strength, better performance at low and high temperatures, better compatibility with organic electrolytes of a lithium secondary battery and it can be applied to the manufacture of lithium secondary batteries.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 29, 2009
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Suk Yun, Byung Won Cho, Seong-Mu Jo, Wha Seop Lee, Won Il Cho, Kun You Park, Hyung Sun Kim, Un Seok Kim, Seok Ku Ko, Suk Won Chun, Sung Won Choi
  • Publication number: 20090022820
    Abstract: Disclosed are a composition comprising an organic acid extract of Torilidis Fructus, which has a sterilization effect on spores of spore-forming microorganisms including fungi and bacteria, and a method of sterilizing spores and vegetative cells using the composition.
    Type: Application
    Filed: January 4, 2006
    Publication date: January 22, 2009
    Applicant: CJ Corporation
    Inventors: Hee Nam Yoon, Jun Bong Choi, Won Il Cho, Yu Ryang Pyun, Seok Cheol Cho, Moo Chang Kook, Byoung Gon Lee
  • Patent number: 7437989
    Abstract: A connecting rod for a hermetic compressor is provided. The connecting rod includes a piston connecting portion, a body having an end connected to the piston connecting portion, a crankshaft connecting portion connected to a different end of the body and extending a predetermined length so that a curved surface is formed, an inner peripheral surface of the crankshaft connecting portion making surface contact with an outer peripheral surface of a sleeve fitted to an off-center pin of a crankshaft, and a clamp fastened to both ends of the crankshaft connecting portion and exerting elastic force to retain the sleeve on the inner peripheral surface of the crankshaft connecting portion. The sleeve does not deform, even when retained on the crankshaft connecting portion, and makes uniform surface contact with the off-center pin, which is inserted into the sleeve. This substantially reduces the abrasion of the sleeve and the off-center pin and improves the compressor's efficiency.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: October 21, 2008
    Assignee: LG Electronics Inc.
    Inventors: Seung-Jae Yoon, Won-Il Cho, Dal Soo Kang
  • Publication number: 20080192285
    Abstract: An image forming apparatus which includes a viewer program so as to directly print printing data stored in an external digital storage medium without using a host computer and a method of controlling the same. The image forming apparatus includes a connection interface unit to receive printing data from an external digital storage medium, a storage unit to store a viewer program to view the contents of the printing data, and a control unit to control the received printing data to be displayed on a predetermined screen display unit via the viewer program and to control the displayed printing data to be printed.
    Type: Application
    Filed: December 13, 2007
    Publication date: August 14, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Won-il CHO
  • Patent number: 7387965
    Abstract: A reference pattern for creating a defect recognition level comprises a blank region formed on a transparent substrate and a grating region formed adjacent to the blank region, wherein the grating region includes a plurality of parallel trench lines.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 17, 2008
    Assignee: Samsung Electronics Co, Ltd.
    Inventors: Won-Il Cho, In-Kyun Shin, Jin-Hyung Park
  • Patent number: 7279251
    Abstract: The present invention provides a lithium secondary battery and its fabrication method. More particularly, the present invention provides a lithium secondary battery comprising a super fine fibrous porous polymer separator film and its fabrication method, wherein the porous polymer separator film is fabricated by the following process: a) melting at least one polymer or dissolving at least one polymer with organic solvents to obtain at least one polymeric melt or at least one polymeric solution; b) adding the obtained polymeric melt or polymeric solution to barrels of an electrospinning machine; and c) discharging the polymeric melt or polymeric solution onto a substrate using a nozzle to form a porous separator film. The lithium secondary battery of the present invention has the advantages of better adhesion with electrodes, good mechanical strength, better performance at low and high temperatures, better compatibility with organic electrolyte solution of a lithium secondary battery.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: October 9, 2007
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyung Suk Yun, Byung Won Cho, Seong Mu Jo, Wha Seop Lee, Won Il Cho, Kun You Park, Hyung Sun Kim, Un Seok Kim, Seok Ku Ko, Suk Won Chun, Sung Won Choi
  • Publication number: 20070227349
    Abstract: Disclosed is a connecting rod for a hermetic compressor including a piston connecting portion 20; a body 22 having an end connected to the piston connecting portion 20; a crankshaft connecting portion 24 connected to a different end of the body 22 and extending a predetermined length so that a curved surface is formed, an inner peripheral surface of the crankshaft connecting portion 24 making surface contact with an outer peripheral surface of a sleeve 28 fitted to an off-center pin 5b of a crankshaft 5; and a clamp 26 fastened to both ends of the crankshaft connecting portion 24 and exerting elastic force for retaining the sleeve 28 on the inner peripheral surface of the crankshaft connecting portion 24. The sleeve 28 does not deform, even when retained on the crankshaft connecting portion 24, and makes uniform surface contact with the off-center pin 5b, which is inserted into the sleeve 28.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 4, 2007
    Inventors: Seung-Jae Yoon, Won-Il Cho, Dal Soo Kang
  • Patent number: 7135254
    Abstract: The present invention relates to a multi-layered, UV-cured polymer electrolyte and lithium secondary battery comprising the same, wherein the polymer electrolyte comprises: A) a separator layer formed of polymer electrolyte, PP, PE, PVdF or non-woven fabric, wherein the separator layer having two surfaces; B) at least one gelled polymer electrolyte layer located on at least one surface of the separator layer comprising: a) polymer obtained by curing ethyleneglycoldi(meth)acrylate oligomer of the formula (I) by UV irradiation: CH2?CR1COO(CH2CH2O)nCOCR2?CH2 wherein, R1 and R2 are independently hydrogen or methyl group, and n is a integer of 3–20; and b) at least one polymer selected from the group consisting of PVdF-based polymer, PAN-based polymer, PMMA-based polymer and PVC-based polymer; and C) organic electrolyte solution in which lithium salt is dissolved in a solvent.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: November 14, 2006
    Assignee: Korea Institute of Science and Technologies
    Inventors: Kyung-Suk Yun, Byung-Won Cho, Won-Il Cho, Hyung-Sun Kim, Un-Sek Kim, Hee-Woo Rhee, Yong-Tae Kim
  • Patent number: 7097943
    Abstract: The present invention relates to a UV-cured multi-component polymer blend electrolyte, lithium secondary battery and their fabrication method, wherein the UV-cured multi-component polymer blend electrolyte, comprises: A) function-I polymer obtained by curing ethyleneglycoldi-(meth)acrylate oligomer of formula 1 by UV irradiation, CH2?CR1COO(CH2CH2O)nCOCR2?CH2 (1) wherein, R1 and R2 are independently a hydrogen or methyl group, and n is an integer of 3-20; B) function-II polymer selected from the group consisting of PAN-based polymer, PMMA-based polymer and mixtures thereof; C) function-III polymer selected from the group consisting of PVdF-based polymer, PVC-based polymer and mixtures thereof; and D) organic electrolyte solution in which lithium salt is dissolved in a solvent.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: August 29, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Byung-Won Cho, Won-Il Cho, Hyung-Sun Kim, Un-Sek Kim, Hee-Woo Rhee, Yong-Tae Kim, Min-Kyu Song
  • Publication number: 20050221194
    Abstract: The present invetion relates to a UV-cured multi-component polymer blend electrolyte, lithium secondary battery and their fabrication method, wherein the UV-cured multi-component polymer blend electrolyte, comprises: A) function-I polymer obtained by curing ethyleneglycoldi-(meth)acrylate oligomer of formula 1 by UV irradiation, CH2?CR1COO(CH2CH2O)nCOCR2?CH2 (1) wherein,R1 and R2 are independently a hydrogen or methyl group, and n is an integer of 3-20;B) function-II polymer selected from the group consisting of PAN-based polymer, PMMA-based polymer and mixtures thereof; C) function-III polymer selected from the group consisting of PVdF-based polymer, PVC-based polymer and mixtures thereof; and D) organic electrolyte solution in which lithium salt is dissolved in a solvent.
    Type: Application
    Filed: January 31, 2001
    Publication date: October 6, 2005
    Inventors: Byung-Won Cho, Won-Il Cho, Hyung-Sun Kim, Un-Sek Kim, Hee-Woo Rhee, Yong-Tae Kim, Min-Kyu Song