Patents by Inventor Yong In CHOI

Yong In CHOI 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: 20030195338
    Abstract: Disclosed are concatameric proteins comprising two soluble domains, in which the C-terminus of a soluble domain of a biologically active protein is linked to the N-terminus of an identical soluble domain or a distinct soluble domain of a biologically active protein. Also, the present invention discloses dimeric proteins formed by formation of intermolecular disulfide bonds at the hinge region of two monomeric proteins formed by linkage of a concatamer of two identical soluble extracellular regions of proteins involving immune response to an Fc fragment of an immunoglobulin molecule, their glycosylated proteins, DNA constructs encoding the monomeric proteins, recombinant expression plasmids containing the DNA construct, host cells transformed or transfected with the recombinant expression plasmids, and a method of preparing the dimeric proteins by culturing the host cells. Further, the present invention discloses pharmaceutical or diagnostic compositions comprising the dimeric protein or its glycosylated form.
    Type: Application
    Filed: February 28, 2003
    Publication date: October 16, 2003
    Inventors: Yong-Hoon Chung, Ji-Woong Han, Hye-Ja Lee, Eun-Yong Choi, Jin-Mi Kim
  • Patent number: 6624080
    Abstract: There is provided a metal etching mask fabrication method. Chrome is first sputtered on a silica layer and a photoresist, which is thicker than the chrome layer, is deposited on the chrome layer. The photoresist layer is patterned, a first nickel is sputtered on the photoresist pattern layer and onto a first portion of the chrome layer exposed by the patterning. A second nickel layer is formed on the portions of the first nickel layer in contact with the first portion of the chrome layer by electroplating. The photoresist pattern has side walls having acute angles to prevent contact between the first nickel layer on the photoresist and the second nickel layer on the first portion of the chrome layer. The photoresist pattern layer and the first nickel layer formed on the photoresist pattern layer are removed using a solvent, and the chrome layer is removed by dry etching in plasma using a gas.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: September 23, 2003
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sun-Tae Jung, Duk-Yong Choi, Joo-Hoon Lee
  • Publication number: 20030128617
    Abstract: The present invention discloses a semiconductor memory device and a method of generating a block selection signal for the semiconductor memory device. The semiconductor memory device includes 2n groups comprised of m memory cell array blocks and each of the memory cell array blocks has (2k+a) word lines. The semiconductor memory device further includes a first block selection signal generating circuit for generating first block selection signals for selecting one group of the 2n groups by decoding a n-bit row address, a second block selection signal generating circuit for generating second block selection signals for selecting one memory cell array block in every group by decoding a l-bit row address, and a third block selection signal generating circuit for generating third block selection signals for selecting one memory cell array block out of (m×2n) memory cell array blocks by receiving the first block selection signals and the second block selection signals.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 10, 2003
    Applicant: Samsung Electronic Co., Ltd.
    Inventors: Jung-Yong Choi, Young-Gu Kang
  • Patent number: 6574107
    Abstract: A stacked intelligent power module package is provided. The intelligent power module package of the present invention includes a power unit including a heat sink and a control unit which is separately manufactured from the power unit and is subsequently stacked on the power unit. The power unit and the control unit of the intelligent power module package are stacked in two different ways including stacking two wire-bonded leadframes of the power unit and the control unit and stacking two separate semiconductor packages of the power unit and the control unit by using locking means formed in each of the semiconductor packages after a trimming/forming process and an electrical property test are finished.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: June 3, 2003
    Assignee: Fairchild Korea Semiconductor Ltd.
    Inventors: O-seob Jeon, Gi-young Jeon, Seung-yong Choi, Seung-won Lim, Seung-jin Kim, Eul-bin Im, Byeong Gon Kim
  • Publication number: 20030100223
    Abstract: The present invention provides a susceptor power-interface assembly which is used for a chamber process module that includes a power supply, a process chamber and a susceptor, wherein the susceptor includes a susceptor shaft penetrating a bottom of the process chamber and a susceptor base on which a wafer is disposed for the process. The susceptor power-interface assembly electrically connects the power supply to the susceptor base.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 29, 2003
    Inventors: Myung-Jin Lee, Yong-Jin Kim, Jong-Yong Choi
  • Patent number: 6559373
    Abstract: The present invention relates to a solar powered cathodic protection system using a photocatalyst which functions as a non-sacrificial photoanode under sunlight, wherein said non-sacrificial photoanode consisting of the photocatalyst such as TiO2 (or ZnO) and an electrolyte, is galvanically connected to a metal structure to be protected and continuously provides electrons to the metal structure, whereby the metal structure is protected from the corrosion. The solar powered cathodic protection system using a non-sacrificial photoanode according to present invention is advantageous in that 1) an external power supply is not necessary, 2) it is easy to maintain the system because the non-sacrificial photoanode according to the present invention can be installed outdoors, and 3) the photocatalyst used as the non-sacrificial photoanode is inexpensive and semipermanent.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: May 6, 2003
    Assignee: Envitech, Inc.
    Inventors: Won Yong Choi, Kyoo Young Kim, Hyun Woong Park
  • Publication number: 20030066206
    Abstract: Method for controlling a washing and drying machine, for improving a drying performance, and saving an energy, the method having a drying cycle for supplying heated air into an inner tub to dry laundry in the inner tub, wherein the drying cycle includes a plurality of drying steps each having the steps of rotating a pulsator for a preset time period, and rotating the inner tub for a preset time period in regular and reverse directions, for enhancing flow of the laundry.
    Type: Application
    Filed: March 29, 2002
    Publication date: April 10, 2003
    Inventors: Kyung Chul Woo, In Chul Jeong, Kyeong Hwan Kim, Choon Myun Chung, Mu Yong Choi
  • Patent number: 6544010
    Abstract: An axial flow fan with a BLDC motor for electronic appliances is disclosed. The axial flow fan of this invention is optimally designed in axial height of both the blades and the fan housing, the number of blades, diameter ratio of the inner diameter to the outer diameter of the blades, camber ratio, pitch angle and sweep angle of the blades. The blades have an axial height higher than that of the fan housing, with a leading surface of the blades being placed outside the surface of the fan housing at a position higher than the surface of the fan housing by a predetermined projection height, thus increasing an air volume of the fan. In addition, the number of the blades is eight, with a diameter ratio of the inner diameter to the outer diameter of the fan being 0.40˜0.45, thus reducing operational noise of the fan.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 8, 2003
    Assignee: LG Electronics Co., Ltd.
    Inventor: Mu Yong Choi
  • Publication number: 20030064365
    Abstract: The present invention provides a method for detecting heterozygous mutation using E. coli stop codon assay. The present invention further provides a gap vector used in the E. coli stop codon assay. According to this invention, the heterozygous mutation in certain gene, e.g. APC gene or BRCA1 gene, may be detected in simple and rapid manner, for example, visual observation on colonies.
    Type: Application
    Filed: June 26, 2001
    Publication date: April 3, 2003
    Inventors: Young-Ho Moon, Hye-Jung Nam, Dong-Hwan Kim, Hyun-Pil Cho, Su-Mi Han, Mi-Uk Chin, Seg-Ho Choi, Su-Yun Kim, Sang-Yong Choi, Byung-Joo Song, Eun-Ryoung Kim, Hyo-Jong Kim, Il-Soo Kim
  • Publication number: 20030064976
    Abstract: The present invention provides certain alpha-amino acids and derivatives thereof, such as, but not limited to, esters, amides and salts. The present invention also provides a novel method for the synthesis of alpha-amino acids and derivatives thereof.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 3, 2003
    Inventors: Sekar Alla, Seung-Yong Choi, Dale Dhanoa, Elso DiFranco, Galina Krokhina, Keqiang Li, Thiagarajan Balasubramanian, Wen-Chun Zhang
  • Publication number: 20030051370
    Abstract: Method for controlling a drying process of a washing and drying machine including a preheating step for tightly closing and heating an inner tub for preparing an environment favorable for vaporization of water by elevating a temperature of the inner tub within a short time period, and a drying step for supplying heated air to the inner tub, to make heat exchange between the heated air and laundry, for drying the laundry, whereby improving a drying performance and reducing occurrence of environmental problem.
    Type: Application
    Filed: August 22, 2002
    Publication date: March 20, 2003
    Inventors: In Chul Jeong, Kyung Chul Woo, Kyeong Hwan Kim, Choon Myun Chung, Mu Yong Choi
  • Patent number: 6527372
    Abstract: Disclosed is a method for optimizing a driving input signal in an ink jet head using shape memory alloy.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: March 4, 2003
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Yong Choi, Myung-Song Jung
  • Publication number: 20030038925
    Abstract: Disclosed is a visual and audio system for theaters including a spherical screen having a desired radius of curvature while having a surface reflectivity of 5-50%, and a projector located at a focal point of the spherical screen. The curvature radius of the spherical screen corresponds to the projection distance of the projector. The image projected from the projector at the focal point of the spherical screen is reflected from the spherical screen in a horizontal direction. Accordingly, viewers can view images projected on the screen corresponding to 5-50 times the brightness of conventional cases. Central speakers are arranged at the focal point of the spherical screen, so that viewers perceive the sound effect as coming directly from the spherical screen. This visual and audio system can be effectively used in theaters for stereoscopic movies, theaters for high resolution images, and theaters for viewing of images at a higher brightness such as theaters for sports broadcasts, and restaurant theaters, etc.
    Type: Application
    Filed: July 18, 2002
    Publication date: February 27, 2003
    Inventor: Hae-Yong Choi
  • Patent number: 6485210
    Abstract: A clamshell device for printers is disclosed. This clamshell device has a main body including a paper roll seat opening used for installing a paper roll therein, with an inclined guide surface formed at the upper edge of each sideall defining the paper roll seat opening. A roller frame is hinged to the main body, and is used for selectively closing the paper roll seat opening. This roller frame has a rubber roller coming into compression contact with a holding roller of the main body so as to compress paper passing through the nip of the two rollers. A locking post is movably set within two longitudinal slits of the roller frame at opposite ends thereof, and is movable along the guide surfaces of the main body while being changed in its position within the longitudinal slits during a rotation of the roller frame relative to the main body.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: November 26, 2002
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hae Yong Choi
  • Patent number: 6481821
    Abstract: The present invention relates to an actuator for an ink jet printer head using a shape memory alloy which includes a lower space part; a silicon substrate where said lower space part is formed; an insulating film formed on said silicon substrate surface and made of a silicon oxide film which acts to push the shape memory alloy film to nozzle side direction and a silicon nitride film which acts to pull the shape memory alloy film in a direction opposite to nozzle side; and a shape memory alloy layer formed upon said insulation film so as to cover said lower space part. The invention can make effect to prevent print state deterioration by repetitive use as it can minimize actuator fatigue phenomenon by repetitive use by way of initial transformation direction and magniture control according to insulation film formation of adequate composition and thickness.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: November 19, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Kyeong Yun, Sung June Park, Hae Yong Choi
  • Publication number: 20020106719
    Abstract: The present invention relates to methods of production of the completely post-translationally modified protein by combination of cell-free protein synthesis and cell-free co- and post-translational modification. Previous cell-free protein synthesis system has only been capable of producing partially post-translationally modified protein but the present invention employs a co- and post-translational modification machinery that produces completely post-translationally modified protein.
    Type: Application
    Filed: February 23, 2001
    Publication date: August 8, 2002
    Applicant: DreamBiogen Co., Ltd.
    Inventors: Cha Yong Choi, Sang Hyeon Kang, Taek Jin Kang, Ji Hyoung Woo, Sang Kil Lee, Seung Woo Cho
  • Publication number: 20020101368
    Abstract: Audio data decoded in an MPEG system to be stored in a storage unit is supplied to an audio output via a filtering processing. For performing the filtering processing, presentation time interval of respective audio data is changed to conform to a user's designated playback speed, and the decoded audio data stored in the storage unit by being synchronized with the changed presentation time interval is written on an input queue in the set unit. A TSM algorithm is performed in the frame unit with respect to the audio data of the input queue to decrease the quantity of the audio data when the designated playback speed is faster than a normal playback speed or to increase it when the designated playback speed is slower than the normal playback speed, in accordance with a value of the designated playback speed. The TSM audio data is transferred to a middle queue.
    Type: Application
    Filed: May 30, 2001
    Publication date: August 1, 2002
    Applicant: Cosmotan Inc.
    Inventors: Won-Yong Choi, Byoung-Chul Lee, Sang-Hun Jeong, Won-Sik Choi
  • Publication number: 20020100298
    Abstract: A pulsator type washing machine having a washing function and a drying function in one unit, includes a first tub, a second tub disposed in the first tub, and a structure operatively coupled with at least one of the first and second tubs to receive air from the second tub, dehumidify the air and recirculate the dehumidified air back into the second tub to dry laundry in the second tub during a drying operation of the washing machine.
    Type: Application
    Filed: January 23, 2002
    Publication date: August 1, 2002
    Inventors: In Chul Jeong, Mu Yong Choi, Kyeong Hwan Kim, Bo Young Chang
  • Publication number: 20020081734
    Abstract: The present invention discloses modified muteins of erythropoietin (EPO) with increased biological activity derived from in vitro or in vivo expression system of microorganism exhibited a prolonged circulating half-life compared to unmodified muteins of EPO produced from microorganisms, and novel methods of preparing the selectively modified muteins of EPO.
    Type: Application
    Filed: February 14, 2001
    Publication date: June 27, 2002
    Inventors: Cha Yong Choi, Sang Hyeon Kang, Taek Jin Kang, Ji Hyoung Woo
  • Publication number: 20020081136
    Abstract: A clamshell device for printers is disclosed. This clamshell device has a main body including a paper roll seat opening used for installing a paper roll therein, with an inclined guide surface formed at the upper edge of each sidewall defining the paper roll seat opening. A roller frame is hinged to the main body, and is used for selectively closing the paper roll seat opening. This roller frame has a rubber roller coming into compression contact with a holding roller of the main body so as to compress paper passing through the nip of the two rollers. A locking post is movably set within two longitudinal slits of the roller frame at opposite ends thereof, and is movable along the guide surfaces of the main body while being changed in its position within the longitudinal slits during a rotation of the roller frame relative to the main body. A spring is held on the roller frame at a first end thereof and on the main body at a second end thereof, and normally applies elastic force to the roller frame.
    Type: Application
    Filed: April 24, 2001
    Publication date: June 27, 2002
    Applicant: SAMSUNG ELECTRO-MECHANICS CO.,LTD
    Inventor: Hae Yong Choi