Patents by Inventor Kwan Oh
Kwan Oh 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).
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Publication number: 20160065042Abstract: Disclosed herein is a step motor. The step motor includes a casing, a stator disposed in the casing, with a coil being wound around the stator, a rotor disposed in the stator, having a rotor shaft that is rotatably supported at both ends of the casing, and rotated by interaction with the stator, a rotary sensing unit provided in the casing to detect a rotation of the rotor, and a coil connector formed on an outer surface of the stator, with an end of the coil being connected to the coil connector.Type: ApplicationFiled: August 26, 2015Publication date: March 3, 2016Inventors: Woo-Seok YEO, Seong-Kwan OH, Hyun-Ki YANG, Hong-Min JANG
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Patent number: 9259412Abstract: The present invention relates to modafinil or derivatives thereof as a medicine for the treatment of vascular diseases or KCa3.1 channel (Ca activated K channel) mediated diseases and a novel use of the same. More specifically, the present invention relates to a pharmaceutical composition for the prevention or treatment of vascular diseases or KCa3.1 channel-mediated diseases comprising modafinil or a derivative of modafinil, or pharmaceutically acceptable salts thereof which relax blood vessels and inhibit KCa3.1 channel currents by increasing intracellular cAMP, a method for treating vascular diseases or KCa3.1 channel-mediated diseases using the composition and a health functional food composition for the prevention or improvement of vascular diseases or the KCa3.1 channel-mediated diseases comprising modafinil or a modafinil derivative compound, or sitologically acceptable salts thereof.Type: GrantFiled: October 24, 2012Date of Patent: February 16, 2016Assignee: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATIONInventors: Suk Hyo Suh, Jae Chul Jung, Sei Kwan Oh
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Patent number: 9246375Abstract: The invention relates to a vibration generator which is used in devices, such as mobile phones, requiring a vibration mode. More specifically, the invention relates to a horizontal vibration type vibration generator which includes a casing that is open on one surface thereof, a vibration part having a weight provided inside the casing, and a spring mounted inside the casing, and which produces horizontal vibration by using the phenomenon of resonance which occurs by causing oscillation in an electromagnetic force having the same frequency as the intrinsic vibration frequency of the spring, and which solves the problem of a reduction in the life span of the vibration generator due to mechanical friction as seen in existing mechanical vibration generators, and generates a large vibration force despite having a thin construction unachievable in a vertical moving type vibration generator. The invention also relates to a production method of the vibration generator.Type: GrantFiled: September 9, 2011Date of Patent: January 26, 2016Assignee: MOATECH CO., LTD.Inventors: Seong-Kwan Oh, Hyuk-Sang Ahn, Ki-Hwan Hong, In-Jae Lee, Hyun-Ki Yang
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Publication number: 20150318771Abstract: Disclosed are a step motor and a manufacturing method thereof. The step motor includes a stator having a bobbin in which a coil is received to generate a magnetic field when power is supplied, and a yoke having a plurality of yoke teeth engaged with the bobbin, a casing covering and protecting the stator, and a rotor inserted into an inner diameter part of the stator and having magnets on a circumference of a rotary shaft, so as to generate rotary force, wherein a bearing is installed to an end of the rotary shaft to support the rotor, and an elastic member is assembled to the bearing to force the end of the rotary shaft inwards in a motor assembly composed of the stator and rotor.Type: ApplicationFiled: May 1, 2014Publication date: November 5, 2015Inventor: SEONG-KWAN OH
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Publication number: 20150282776Abstract: An X-ray apparatus includes: a source configured to emit X-rays to an object; a detector configured to detect the X-rays that have penetrated the object; an arm configured to connect the source to the detector and move centering on a stand fixed to a bottom; a controller configured to control a movement of the arm so that the controller changes a direction of the X-rays, which are radiated to the object, and the arm rotates on the stand to move the detector in a first direction, to obtain images for a plurality of parts of the object; and an image processor configured to obtain the images for the plurality of parts of the object based on the X-rays detected by the detector.Type: ApplicationFiled: June 17, 2015Publication date: October 8, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-woo SHIN, Jeong-hwan KIM, Do-kwan OH, Dong-jae LEE, Sang-chul LEE
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Patent number: 9135946Abstract: The present invention relates to a PM (Pulse-Width Modulation) type step motor used for conveying an optical pickup lens of media devices or a mobile camera lens. In detail, the present invention relates to a step motor that is composed of a stator, a rotor rotating by interacting with the stator, a lead screw combined with the rotor and rotating with the rotation of the rotor, and a bearing supporting the lead screw and which can perform precise conveying because it can perform fine adjustment and of which the operation state can be precisely sensed by having a position correcting unit that moves the lead screw to a desired position by finely moving it while contracting and stretching and a rotation sensing unit that is disposed at a side of the rotor or a rotary member rotating with the rotor and senses rotation of the rotor.Type: GrantFiled: March 12, 2015Date of Patent: September 15, 2015Inventors: Hyun-Ki Yang, Seong-Kwan Oh, Hyok-Sang Ahn, Se-Hee Park
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Patent number: 9116034Abstract: A wireless measurement device includes a sound acoustic wave (SAW)-based micro sensor converting a wirelessly received pulse signal into an SAW and generating a plurality of pulse signals by reflecting the SAW, and wirelessly transmitting the plurality of pulse signals to measure a variance of an environmental element; and a reader generating and wirelessly transmitting a pulse signal to the SAW-based micro sensor to measure variances in environmental elements.Type: GrantFiled: September 14, 2011Date of Patent: August 25, 2015Assignee: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATIONInventors: Sang Sik Yang, Ik Mo Park, Young kil Kim, Kee Keun Lee, Ick Jin Kwon, Hae Kwan Oh
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Publication number: 20150223764Abstract: Disclosed herein are an X-ray imaging apparatus which recognizes a marker located at a part to be subjected to X-ray imaging from an image of a subject imaged by a camera and which controls a respective movement of each of an X-ray tube and an X-ray detector to a respective position which corresponds to the recognized marker, and a method for controlling the same. An X-ray imaging apparatus includes an X-ray tube which radiates X-rays toward a subject, an X-ray detector which detects X-rays which propagate through the subject, an imaging unit which generates an image of the subject, a recognizes which recognizes a part to be subjected to X-ray imaging from the image of the subject, and a position controller which controls a movement of the X-ray tube and the X-ray detector to a position corresponding to the part to be subjected to X-ray imaging.Type: ApplicationFiled: April 23, 2015Publication date: August 13, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho Seong KWAK, Choong Hwan CHOI, Do Kwan OH, Woo Sup HAN
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Patent number: 9078620Abstract: An X-ray apparatus includes: a source for emitting X-rays to an object; a detector for detecting the X-rays penetrating the object; an arm for connecting the source to the detector and moving the detector up and down according to a rotation of the source; and a controller for controlling an imaging of the object by driving the arm.Type: GrantFiled: October 4, 2013Date of Patent: July 14, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-woo Shin, Jeong-hwan Kim, Do-kwan Oh, Dong-jae Lee, Sang-chul Lee
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Publication number: 20150160530Abstract: Provided are an acousto-optic element, an acousto-optic element array, and a display apparatus including the acousto-optic element array. The acousto-optic element includes: an acousto-optic modulator which includes an acousto-optic layer formed of an acousto-optic material; a light supplier which supplies light to the acousto-optic modulator in a first direction; a first sound-wave modulator which applies first elastic waves to the acousto-optic modulator in a second direction; and a second sound-wave modulator which applies second elastic waves to the acousto-optic modulator in a third direction. The light supplied from the light supplier to the acousto-optic modulator is deflected by diffraction caused by the first elastic waves applied from the first sound-wave modulator and diffraction caused by the second elastic waves applied from the second sound-wave modulator, and is output from the acousto-optic modulator through a front side of the acousto-optic modulator.Type: ApplicationFiled: July 1, 2014Publication date: June 11, 2015Applicants: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Seung-hoon HAN, Won-taek SEO, Hae-kwan OH, Hong-seok LEE, Eun-hyoung CHO, Kee-keun LEE
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Patent number: 9028144Abstract: Disclosed herein are an X-ray imaging apparatus which recognizes a marker located at a part to be subjected to X-ray imaging from an image of a subject imaged by a camera and which controls a respective movement of each of an X-ray tube and an X-ray detector to a respective position which corresponds to the recognized marker, and a method for controlling the same. An X-ray imaging apparatus includes an X-ray tube which radiates X-rays toward a subject, an X-ray detector which detects X-rays which propagate through the subject, an imaging unit which generates an image of the subject, a recognizer which recognizes a part to be subjected to X-ray imaging from the image of the subject, and a position controller which controls a movement of the X-ray tube and the X-ray detector to a position corresponding to the part to be subjected to X-ray imaging.Type: GrantFiled: June 17, 2013Date of Patent: May 12, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Choong Hwan Choi, Do Kwan Oh, Woo Sup Han
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Publication number: 20150123498Abstract: Disclosed herein is a vibration generator which is used to embody vibration for signal reception indication or a haptic function of wireless communication devices such as mobile phones. The vibration generator includes a casing which has a space therein, a stator which is provided in the casing and is provided with a coil along which current flows, a vibrator which is provided in the casing and is horizontally moved by electromagnetic force, an elastic body which is fixed at a first end thereof to the casing and fixed at a second end thereof to the vibrator, and a residual vibration reducer which is provided between the vibrator and the casing to absorb vibration of the vibrator. Therefore, after the vibration of the vibrator is stopped, the time it takes to stop movement of the vibrator can be markedly reduced.Type: ApplicationFiled: November 4, 2013Publication date: May 7, 2015Inventors: Hyun-Ki YANG, Seong-Kwan Oh, Hyok-Sang Ahn, Se-Hee Park
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Publication number: 20150000399Abstract: Provided is a gyroscope using a surface acoustic wave (SAW) and an angular velocity measurement method. The gyroscope includes an SAW resonator generating a first SAW, generating Coriolis force using an interaction between a velocity component of the first SAW and applied angular velocity on a metallic dot layer disposed in a certain position, and generating a second SAW using the Coriolis force, an SAW sensing oscillator generating a third SAW and receiving a fourth SAW, which is the third SAW reflected and returning after causing interference due to the second SAW, and a measurement device measuring a level of the applied angular velocity using variations in time of receiving the fourth SAW.Type: ApplicationFiled: December 31, 2012Publication date: January 1, 2015Applicant: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATIONInventors: Kee Keun Lee, Sang Sik Yang, Hae Kwan Oh
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Publication number: 20140348387Abstract: A method of and apparatus for changing lesion classification data, the method including determining whether at least one mass is included in an image of an object, determining whether the at least one mass corresponds to a lesion by using first data including at least one first information, selecting a false negative (FN) mass which has been determined as not corresponding to the lesion among the at least one mass, based on a first input, and changing the first data to second data by using second information of the selected FN mass.Type: ApplicationFiled: May 27, 2014Publication date: November 27, 2014Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and TechnologyInventors: Choong-hwan CHOI, Yong-man RO, Seong-ho CHANG, Woo-sup HAN, Seong-tae KIM, Min-cheol PARK, Do-kwan OH, Byeong-won LEE
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Publication number: 20140296333Abstract: The present invention relates to modafinil or derivatives thereof as a medicine for the treatment of vascular diseases or KCa3.1 channel (Ca activated K channel) mediated diseases and a novel use of the same. More specifically, the present invention relates to a pharmaceutical composition for the prevention or treatment of vascular diseases or KCa3.1 channel-mediated diseases comprising modafinil or a derivative of modafinil, or pharmaceutically acceptable salts thereof which relax blood vessels and inhibit KCa3.1 channel currents by increasing intracellular cAMP, a method for treating vascular diseases or KCa3.1 channel-mediated diseases using the composition and a health functional food composition for the prevention or improvement of vascular diseases or the KCa3.1 channel-mediated diseases comprising modafinil or a modafinil derivative compound, or sitologically acceptable salts thereof.Type: ApplicationFiled: October 24, 2012Publication date: October 2, 2014Applicant: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATIONInventors: Suk Hyo Suh, Jae Chul Jung, Sei Kwan Oh
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Publication number: 20140240812Abstract: Provided is an acousto-optic device including an elastic medium; a meta structure formed on a first surface of the elastic medium, and an elastic-wave generating unit which generates an elastic wave in the elastic medium. The meta structure includes a first layer and a second layer that is formed on the first layer. The at least one of the first layer and the second layer includes a predetermined repetitive pattern.Type: ApplicationFiled: January 23, 2014Publication date: August 28, 2014Applicants: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-hoon HAN, Wan-joo MAENG, Won-taek SEO, Hoon SONG, Hae-kwan OH, Kee-keun LEE
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Publication number: 20140153697Abstract: Disclosed herein are an X-ray imaging apparatus which recognizes a marker located at a part to be subjected to X-ray imaging from an image of a subject imaged by a camera and which controls a respective movement of each of an X-ray tube and an X-ray detector to a respective position which corresponds to the recognized marker, and a method for controlling the same. An X-ray imaging apparatus includes an X-ray tube which radiates X-rays toward a subject, an X-ray detector which detects X-rays which propagate through the subject, an imaging unit which generates an image of the subject, a recognizer which recognizes a part to be subjected to X-ray imaging from the image of the subject, and a position controller which controls a movement of the X-ray tube and the X-ray detector to a position corresponding to the part to be subjected to X-ray imaging.Type: ApplicationFiled: June 17, 2013Publication date: June 5, 2014Inventors: Choong Hwan CHOI, Do Kwan OH, Woo Sup HAN
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Publication number: 20140105357Abstract: An X-ray apparatus includes: a source for emitting X-rays to an object; a detector for detecting the X-rays penetrating the object; an arm for connecting the source to the detector and moving the detector up and down according to a rotation of the source; and a controller for controlling an imaging of the object by driving the arm.Type: ApplicationFiled: October 4, 2013Publication date: April 17, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-woo SHIN, Jeong-hwan KIM, Do-kwan OH, Dong-jae LEE, Sang-chul LEE
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Publication number: 20130174662Abstract: A wireless measurement device includes a sound acoustic wave (SAW)-based micro sensor converting a wirelessly received pulse signal into an SAW and generating a plurality of pulse signals by reflecting the SAW, and wirelessly transmitting the plurality of pulse signals to measure a variance of an environmental element; and a reader generating and wirelessly transmitting a pulse signal to the SAW-based micro sensor to measure variances in environmental elements.Type: ApplicationFiled: September 14, 2011Publication date: July 11, 2013Applicant: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATIONInventors: Sang Sik Yang, Ik Mo Park, Young kil Kim, Kee Keun Lee, Ick Jin Kwon, Hae Kwan Oh
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Patent number: D703625Type: GrantFiled: March 18, 2013Date of Patent: April 29, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Hyun Lim, Young Ki Lee, Tae Hyun Kim, Si Joong Yang, Jong Man Kim, Kyu Kwan Oh, Young Ho Sohn