Patents by Inventor Bu Hyun
Bu Hyun 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: 20240138174Abstract: Provided are an organic electronic element comprising an anode, a cathode, and an organic material layer between the anode and the cathode, and an electronic device comprising the organic electronic element, wherein the organic material layer comprises each compound represented by Formula 1, Formula 2, or Formula 3, thereby the driving voltage of the organic electronic element can be lowered and the luminous efficiency and lifespan can be improved.Type: ApplicationFiled: March 15, 2023Publication date: April 25, 2024Applicant: DUK SAN NEOLUX CO., LTD.Inventors: Hyo Min JIN, Bu Yong YUN, Jae Ho KIM, Hyung Dong LEE, Chi Hyun PARK
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Patent number: 11932993Abstract: A paper coating composition, methods for making the same, and a coated paper. The paper coating composition comprises a solvent, an ethylene-(meth)acrylic acid copolymer, a basic compound, and a polycarbodiimide-based curing agent, wherein the polycarbodiimide-based curing agent has a carbodiimide group equivalent of about 150 to about 350. The coating of the coated paper likewise comprises an ethylene-(meth)acrylic acid copolymer crosslinked by N-acylurea groups.Type: GrantFiled: May 26, 2023Date of Patent: March 19, 2024Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.Inventors: Dong Hyun Woo, Sang Ha Son, Ji Hyeon Choi, Bu Yeon Hwang
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Publication number: 20240087294Abstract: Systems and methods for domain generalization configured in accordance with some embodiments of the invention are illustrated. One embodiment includes a method for domain generalization of a machine learning model. The method sets a parameter of a first model and a parameter of a second model based on a pre-trained model. The method learns the second model by performing a predetermined task on a source domain. The method estimates an unobservable gradient for model updates on an unseen domain based on: the parameter of the first model, and the parameter of the second model. The method updates the first model based on the estimated unobservable gradient.Type: ApplicationFiled: September 13, 2023Publication date: March 14, 2024Applicant: Hyperconnect LLCInventors: Bu Ru Chang, Byoung Gyu Lew, Dong Hyun Son
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Patent number: 9518012Abstract: Disclosed herein is a method of preparing a Cu/Cu2O core-shell copper nanoparticle catalyst having high catalytic activity from [Cu3(BTC)2] and NaBH4 via a simple chemical reduction method. Also disclosed is a method of preparing a chalcogenide compound by using the nanoparticle catalyst as a heterogeneous catalyst in a cross-coupling reaction between a chalcogenide precursor compound and a boron-containing compound. The disclosed cross-coupling reaction is performed via a simple process, and the disclosed nanoparticle catalyst is compatible with various substrates under mild reaction conditions and exhibits excellent recyclability without a reduction in catalytic activity.Type: GrantFiled: September 23, 2015Date of Patent: December 13, 2016Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Kang Hyun Park, Sung Kyun Park, Bu Hyun Youn, Jin Kyoon Park, Jung Sub Lee, Balaji Mohan, Seong Wan Jang, Sang Geun Lee, Cho Hye Yoon
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Publication number: 20160311768Abstract: Disclosed herein is a method of preparing a Cu/Cu2O core-shell copper nanoparticle catalyst having high catalytic activity from [Cu3(BTC)2] and NaBH4 via a simple chemical reduction method. Also disclosed is a method of preparing a chalcogenide compound by using the nanoparticle catalyst as a heterogeneous catalyst in a cross-coupling reaction between a chalcogenide precursor compound and a boron-containing compound. The disclosed cross-coupling reaction is performed via a simple process, and the disclosed nanoparticle catalyst is compatible with various substrates under mild reaction conditions and exhibits excellent recyclability without a reduction in catalytic activity.Type: ApplicationFiled: September 23, 2015Publication date: October 27, 2016Inventors: Kang Hyun PARK, Sung Kyun PARK, Bu Hyun YOUN, Jin Kyoon PARK, Jung Sub LEE, Balaji MOHAN, Seong Wan JANG, Sang Geun LEE, Cho Hye YOON
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Publication number: 20060251281Abstract: Disclosed herein is an actuator module for wireless communication terminals. The actuator module comprises at least one actuator, an upper base for receiving the actuator on a lower surface thereof, a lower base assembled to the upper base while defining an inner space of a predetermined volume with respect to the upper base, and a connecting member having a body fixed to an upper surface of the lower base. One end of the body is exposed from a lower surface of the lower base, and the other end thereof is electrically connected with the actuator when the upper and lower bases are coupled to each other. With the construction, electrical connection between the actuator and a substrate can be conveniently obtained with reduced manufacturing costs thereof. In addition, assembly of the actuator and the substrate can be simplified via efficient use of the inner space of a terminal body.Type: ApplicationFiled: December 27, 2005Publication date: November 9, 2006Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Bu Hyun, Wook Lee
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Patent number: 7106157Abstract: A latch type solenoid switch including a frame, a permanent magnet providing magnetic force to the frame, a coil unit which offsets the magnetic force of a permanent magnet when power is supplied, and a moving part which adheres to and detaches from the frame depending on the power supply to the coil unit. Anti-corrosion coating is applied to the surface of the frame and the moving part. The plating thickness on the contact surfaces between the frame and the moving part is thinner than on the other surfaces of the two bodies.Type: GrantFiled: December 17, 2003Date of Patent: September 12, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Bu-hyun Sung, Soon-kyo Hong
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Patent number: 7079171Abstract: A color laser printer producing a color image using a single laser scanning unit includes a lighting unit including first and second laser diodes emitting beams of one polarization, a polarization prism transmitting or reflecting incident beams depending on a direction of polarization, and third and fourth laser diodes disposed in a different direction from the first and second laser diodes with respect to the polarization prism, a rotary polygon mirror that reflects the beam emitted along the same path from the lighting unit, an f-? lens that focuses the beam reflected by the rotary polygon mirror, first and second polarization beam splitters, each of which transmits or reflects the beam passing through the f-? lens depending on the direction of the polarization, and first through fourth photoconductive units on which the beams reflected and transmitted through the first and second polarization beam splitters are incident.Type: GrantFiled: April 28, 2003Date of Patent: July 18, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Bu-hyun Sung, Chul-woo Lee, Soon-kyo Hong, Young-woo Huh
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Publication number: 20060148523Abstract: An electronic device includes a body and a battery to supply various components in the body with current. The battery includes a memory having a built-in main memory and a detachable auxiliary memory. The built-in memory and/or the auxiliary memory are, optionally, connected to another device. According to such configuration, the electronic device can be portable to easily store required information via the memory unit installed on the battery anytime and anywhere.Type: ApplicationFiled: February 28, 2006Publication date: July 6, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Soon-kyo Hong, Byoung-young Bae, Bu-hyun Sung, Young-min Cheong
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Patent number: 6910218Abstract: In a slim type optical disc drive, an optical pickup unit and an optical pickup transport assembly are installed on a main base disposed in a housing having a lower case and an upper case. A spindle motor is mounted on a tray so as to slide in and out of the housing. A spindle motor printed circuit board is mounted on the tray, and a main printed circuit board is fixed to the lower case. A flexible printed circuit connects the spindle motor and main printed circuits boards. The tray includes a table which supports the spindle motor, and side frame bars located at sides of the tray and spaced apart from the table. A pair of guide ribs are arranged in the housing to guide the movement of the table. In the slim type optical disc drive, only the spindle motor is disposed on the tray.Type: GrantFiled: November 6, 2002Date of Patent: June 21, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-kyong Park, Bu-hyun Sung, Dong-seob Jang, Gyu-chan Jun
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Patent number: 6888555Abstract: A color synchronization method and a color laser printer form a color image by forming an electrostatic latent image on a photosensitive body using a laser scanning unit, developing the electrostatic latent image, and transferring the developed image onto a transfer belt. The printer includes a light source which radiates light, a timing belt which rotates the photosensitive body, a plurality of timing displays, which are provided on the timing belt at a constant interval, and on which the light radiated from the light source is incident, and a light receiving portion which detects the light reflected or transmitted by the timing displays. Synchronization for each color is controlled in response to a signal received by the light receiving portion.Type: GrantFiled: April 28, 2003Date of Patent: May 3, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Bu-hyun Sung, Chul-woo Lee, Soon-kyo Hong, Young-woo Huh
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Publication number: 20040140192Abstract: A latch type solenoid switch including a frame, a permanent magnet providing magnetic force to the frame, a coil unit which offsets the magnetic force of a permanent magnet when power is supplied, and a moving part which adheres to and detaches from the frame depending on the power supply to the coil unit. Anti-corrosion coating is applied to the surface of the frame and the moving part. The plating thickness on the contact surfaces between the frame and the moving part is thinner than on the other surfaces of the two bodies.Type: ApplicationFiled: December 17, 2003Publication date: July 22, 2004Applicant: Samsung Electronics Co., Ltd.Inventors: Bu-Hyun Sung, Soon-Kyo Hong
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Publication number: 20030218668Abstract: A color synchronization method and a color laser printer form a color image by forming an electrostatic latent image on a photosensitive body using a laser scanning unit, developing the electrostatic latent image, and transferring the developed image onto a transfer belt. The printer includes a light source which radiates light, a timing belt which rotates the photosensitive body, a plurality of timing displays, which are provided on the timing belt at a constant interval, and on which the light radiated from the light source is incident, and a light receiving portion which detects the light reflected or transmitted by the timing displays. Synchronization for each color is controlled in response to a signal received by the light receiving portion.Type: ApplicationFiled: April 28, 2003Publication date: November 27, 2003Applicant: SAMSUNG Electronics Co., Ltd.Inventors: Bu-Hyun Sung, Chul-Woo Lee, Soon-Kyo Hong, Young-Woo Huh
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Publication number: 20030210324Abstract: A color laser printer producing a color image using a single laser scanning unit includes a lighting unit including first and second laser diodes emitting beams of one polarization, a polarization prism transmitting or reflecting incident beams depending on a direction of polarization, and third and fourth laser diodes disposed in a different direction from the first and second laser diodes with respect to the polarization prism, a rotary polygon mirror that reflects the beam emitted along the same path from the lighting unit, an f-&thgr; lens that focuses the beam reflected by the rotary polygon mirror, first and second polarization beam splitters, each of which transmits or reflects the beam passing through the f-&thgr; lens depending on the direction of the polarization, and first through fourth photoconductive units on which the beams reflected and transmitted through the first and second polarization beam splitters are incident.Type: ApplicationFiled: April 28, 2003Publication date: November 13, 2003Applicant: SAMSUNG Electronics Co., Ltd. of Republic of KoreaInventors: Bu-hyun Sung, Chul-woo Lee, Soon-kyo Hong, Young-woo Huh
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Publication number: 20030086358Abstract: In a slim type optical disc drive, an optical pickup unit and an optical pickup transport assembly are installed on a main base disposed in a housing having a lower case and an upper case. A spindle motor is mounted on a tray so as to slide in and out of the housing. A spindle motor printed circuit board is mounted on the tray, and a main printed circuit board is fixed to the lower case. A flexible printed circuit connects the spindle motor and main printed circuits boards. The tray includes a table which supports the spindle motor, and side frame bars located at sides of the tray and spaced apart from the table. A pair of guide ribs are arranged in the housing to guide the movement of the table. In the slim type optical disc drive, only the spindle motor is disposed on the tray.Type: ApplicationFiled: November 6, 2002Publication date: May 8, 2003Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae-kyong Park, Bu-hyun Sung, Dong-seob Jang, Gyu-chan Jun
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Patent number: 6473264Abstract: A hard disk drive filtering apparatus for filtering particles from flowing air generated while a hard disk installed within a housing rotates, the apparatus including a holder installed within the housing, and a filter supported by the holder, the filter having at least a pair of filter plates connected to be met at predetermined angles, wherein the flowing air is filtered while being entered into the space formed by the filter plates.Type: GrantFiled: November 30, 2000Date of Patent: October 29, 2002Assignee: Samsung Electronics Co., Ltd.Inventors: Byoung-young Bae, Bu-hyun Sung
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Publication number: 20020142194Abstract: An electronic device includes a body and a battery to supply various components in the body with current. The battery includes a memory having a built-in main memory and a detachable auxiliary memory. The built-in memory and/or the auxiliary memory are, optionally, connected to another device. According to such configuration, the electronic device can be portable to easily store required information via the memory unit installed on the battery anytime and anywhere.Type: ApplicationFiled: November 30, 2001Publication date: October 3, 2002Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Soon-kyo Hong, Byoung-young Bae, Bu-hyun Sung, Young-min Cheong
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Publication number: 20010017744Abstract: A hard disk drive filtering apparatus for filtering particles from flowing air generated while a hard disk installed within a housing rotates, the apparatus including a holder installed within the housing, and a filter supported by the holder, the filter having at least a pair of filter plates connected to be met at predetermined angles, wherein the flowing air is filtered while being entered into the space formed by the filter plates.Type: ApplicationFiled: November 30, 2000Publication date: August 30, 2001Inventors: Byoung-young Bae, Bu-hyun Sung
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Patent number: 6232680Abstract: An apparatus for cooling an electronic device includes a case where a plurality of air intake/exhaust holes through which air passes are formed. A plate type mobile member is installed to vibrate in the case and divides an inner space of the case into an upper space and a lower space. An elastic support film is fixed in the case to support the mobile member and has a bulged portion capable of being elastically deformed. A driving device is provided for vibrating the mobile member. By the vibration of the mobile member, air in the upper and lower spaces of the case is exchanged with outside air through the air intake/exhaust holes so that a heat source is cooled.Type: GrantFiled: January 12, 2000Date of Patent: May 15, 2001Assignee: Samsung Electronics Co., Ltd.Inventors: Byoung-young Bae, Soon-kyo Hong, Bu-hyun Sung, Hong-kyun Yim, Yong-jun Kim
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Patent number: 6134041Abstract: A polygonal mirror assembly is provided with a vibration absorption. The polygonal mirror assembly includes a motor and a polygonal mirror rotatably installed around the rotation shaft of the motor. The polygonal mirror is provided with a plurality of reflective facets. The vibration absorption device is provided for absorbing rotational vibration due to the eccentric mass of the polygonal mirror, by elastically moving in the radial direction of the polygonal mirror. Therefore, the linearity of a scan line scanned from the laser scanning unit to the photoreceptor medium can be maintained.Type: GrantFiled: October 18, 1999Date of Patent: October 17, 2000Assignee: Samsung Electronics Co., Ltd.Inventors: Soon-kyo Hong, Sung-jin Lee, Byoung-young Bae, Seong-hoon Kim, Bu-hyun Sung