Patents by Inventor Eun-sang Park
Eun-sang Park 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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Patent number: 12238982Abstract: A display device includes: a substrate including a display area having a plurality of pixel areas and a non-display area surrounding at least one side of the display area; a light-blocking layer disposed on a first surface of the substrate and including light transmissive areas to allow incident light to pass therethrough; a circuit-element layer disposed on the light-blocking layer and including a plurality of conductive layers; a light-emitting element layer disposed on the circuit-element layer and including light-emitting elements; and a sensor layer disposed on a second surface of the substrate opposing the first surface to sense the light passing through the light transmissive areas. The light-blocking layer is electrically coupled to at least one of the plurality of conductive layers.Type: GrantFiled: June 4, 2020Date of Patent: February 25, 2025Assignee: Samsung Display Co., Ltd.Inventors: Eun Jin Sung, Seong Ryong Lee, Jae Kyoung Kim, Won Sang Park, Jong In Baek, Bong Hyun You
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Patent number: 12235669Abstract: An electronic pedal device includes an accelerator pedal module and a brake pedal module that operate in a pressure operation manner, whereby a driver may operate the same with a small force. The driver may easily recognize the operational state of the pedal based on a haptic signal generated during operation of the pedal. Because operation of the pedal is detected through a dual detecting structure using a Hall sensor and a pressure sensor, safety may be further ensured during operation of the pedal.Type: GrantFiled: July 10, 2023Date of Patent: February 25, 2025Assignees: Hyundai Motor Company, Kia Corporation, DONG HEE INDUSTRIAL CO., LTD.Inventors: Eun Sik Kim, Wi Sang Park, Jae Hyun Cho, Jung Min Lee, Seong Ju Jo
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Publication number: 20240043021Abstract: A vehicle control apparatus includes: a vehicle state judgment unit that judges a transverse driving control state and a longitudinal driving control state of a vehicle when detecting that a torque of a vehicle power source is abnormal, and judges a normal power source when the transverse driving control is in a normal state and the longitudinal driving control is in a failure state; a driving condition judgment unit that judges a driving state corresponding to a predetermined accident risk driving condition by using vehicle information when there is the normal power source; and a vehicle control unit that controls driving of the vehicle by using a target safety torque provided in advance when the driving state of the vehicle corresponds to the accident risk driving condition, where the vehicle is operated using the target safety torque when the driving state is the accident risk driving condition.Type: ApplicationFiled: August 3, 2023Publication date: February 8, 2024Inventors: Hyun Ki Shin, Eun Sang Park, Byung Gun Kim
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Patent number: 10534021Abstract: A harmonic Hall voltage analysis method is provided to analyze a damping-like effective field ?HDL and a field-like effective field ?HFL with respect to polar angles of all magnetizations and a ratio R of an anomalous Hall effect resistance RAHE to a wide plane Hall resistance RPHE (R=RAHE/RPHE).Type: GrantFiled: August 18, 2017Date of Patent: January 14, 2020Assignee: Korea University Research and Business FoundationInventors: Sang Ho Lim, Seok Jin Yun, Kyung-Jin Lee, Eun-Sang Park
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Patent number: 10316767Abstract: The present invention relates to a method for diagnosing sticking in a cylinder deactivation apparatus, the method comprising: an intake valve sticking determining step of determining whether the intake valve is stuck closed or stuck open by detecting the amount of variation of intake pressure in each intake manifold cylinders in an operation-off mode of the cylinder deactivation apparatus and comparing the amount of variation with a predetermined value; and an exhaust valve sticking determining step of determining whether the exhaust valve is stuck closed or stuck open by detecting the state of the air-fuel ratio in exhaust gas if it is determined whether the intake valve is stuck closed or stuck open in the intake valve sticking determining step, thereby sensing the stuck closed or the stuck open state of the intake valve and the exhaust valve so as to diagnose failure of the cylinder deactivation apparatus.Type: GrantFiled: November 17, 2014Date of Patent: June 11, 2019Assignee: HYUNDAI KEFICO CORPORATIONInventor: Eun Sang Park
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Publication number: 20180210015Abstract: A harmonic Hall voltage analysis method is provided to analyze a damping-like effective field ?HDL and a field-like effective field ?HFL with respect to polar angles of all magnetizations and a ratio R of an anomalous Hall effect resistance RAHE to a wide plane Hall resistance RPHE (R=RAHE/RPHE).Type: ApplicationFiled: August 18, 2017Publication date: July 26, 2018Inventors: Sang Ho Lim, Seok Jin Yun, Kyung-Jin Lee, Eun-Sang Park
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Publication number: 20160290246Abstract: The present invention relates to a method for diagnosing sticking in a cylinder deactivation apparatus, the method comprising: an intake valve sticking determining step of determining whether the intake valve is stuck closed or stuck open by detecting the amount of variation of intake pressure in each intake manifold cylinders in an operation-off mode of the cylinder deactivation apparatus and comparing the amount of variation with a predetermined value; and an exhaust valve sticking determining step of determining whether the exhaust valve is stuck closed or stuck open by detecting the state of the air-fuel ratio in exhaust gas if it is determined whether the intake valve is stuck closed or stuck open in the intake valve sticking determining step, thereby sensing the stuck closed or the stuck open state of the intake valve and the exhaust valve so as to diagnose failure of the cylinder deactivation apparatus.Type: ApplicationFiled: November 17, 2014Publication date: October 6, 2016Applicant: Hyundai Kefico CorporationInventor: EUN SANG PARK
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Patent number: 7903997Abstract: An image forming apparatus includes a main body unit which has an image forming unit; a door unit which couples with the main body unit to open and close the main body unit, and has a projection at one side thereof; a mid-transfer unit which couples with the door unit; a coupling knob which is provided in the main body unit and rotates in cooperation with pressure of the projection when the door unit is closed; and a coupling apparatus which is provided in the main body and transmits a driving force from the main body unit to the mid-transfer unit in cooperation with the rotation of the coupling knob.Type: GrantFiled: November 29, 2007Date of Patent: March 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Woo-chul Jung, Jin-kyu Yang, Sang-woon Lee, Eun-sang Park
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Patent number: 7848693Abstract: A fusing device that is provided on a printing passage of an image forming apparatus and fuses an image transferred to a print medium, the fusing device including: a heating roller; a pressure roller to press the print medium fed along the printing passage against the heating roller; a separation roller to separate the print medium from the heating roller; a fusing pressure belt that winds around the pressure roller and the separation roller; a first elastic member to pressure the pressure roller towards the heating roller along a first line; and a second elastic member to pressure the separation roller towards the heating roller, wherein the first line passes through a center of the pressure roller and forms an angle towards the separation roller with a second line that passes through a center of the heating roller and the center of the pressure roller.Type: GrantFiled: June 29, 2007Date of Patent: December 7, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-sang Park, Woo-chul Jung, Kyung-shig Chung
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Patent number: 7444105Abstract: An image-forming apparatus includes a developing unit. The developing unit has at least one carrying screw for uniformly distributing toner on a supply roller, a toner container that includes at least one mixing screw and supplies toner to the developing unit, and a toner pressure control device that controls the transfer of the toner by being rotatably mounted in a toner path between the developing unit and the toner container.Type: GrantFiled: January 23, 2006Date of Patent: October 28, 2008Assignee: Samsung Electronics Co., Ltd.Inventor: Eun-sang Park
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Patent number: 7421238Abstract: A used developer cleaning system is provided which removes used developer remaining on an image transmission medium after a developer image has been transferred, and an image forming apparatus having such a used developer cleaning system. The used developer cleaning system includes a cleaning section, a used developer collecting section, a first sludge filtering section, positioned in the used developer collecting section to divide the used developer collecting section into at least two spaces, and a used developer storage section for storing the used developer, from which sludge has been filtered through the first sludge filtering section. The used developer storage section communicates with the used developer collecting section.Type: GrantFiled: October 6, 2005Date of Patent: September 2, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Jun-Hee Lee, Eun-Sang Park
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Publication number: 20080134824Abstract: An image forming apparatus includes a main body unit which has an image forming unit; a door unit which couples with the main body unit to open and close the main body unit, and has a projection at one side thereof; a mid-transfer unit which couples with the door unit; a coupling knob which is provided in the main body unit and rotates in cooperation with pressure of the projection when the door unit is closed; and a coupling apparatus which is provided in the main body and transmits a driving force from the main body unit to the mid-transfer unit in cooperation with the rotation of the coupling knob.Type: ApplicationFiled: November 29, 2007Publication date: June 12, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Woo-chul Jung, Jin-kyu Yang, Sang-woon Lee, Eun-sang Park
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Publication number: 20080138130Abstract: A fusing device that is provided on a printing passage of an image forming apparatus and fuses an image transferred to a print medium, the fusing device including: a heating roller; a pressure roller to press a print medium fed along the printing passage against the heating roller; a separation roller to separate the print medium from the heating roller; a fusing pressure belt that winds around the pressure roller and the separation roller; a first elastic member to pressure the pressure roller towards the heating roller along a first line; and a second elastic member to pressure the separation roller towards the heating roller, wherein the first line passes through a center of the pressure roller and forms an angle towards the separation roller with a second line that passes through a center of the heating roller and the center of the pressure roller.Type: ApplicationFiled: June 29, 2007Publication date: June 12, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Eun-sang PARK, Woo-chul Jung, Kyung-shig Chung
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Publication number: 20070019983Abstract: An image forming apparatus has a transfer belt including a transfer belt that transfers a toner image transferred from a photographic drum. A vibrator-bar is disposed inside of the transfer belt to contact the back side of the transfer belt. Preferably, the vibrator-bar applies ultrasonic vibrations. A cleaning blade and a cleaning roller may be disposed downstream of the vibrator-bar.Type: ApplicationFiled: February 9, 2006Publication date: January 25, 2007Inventor: Eun-sang Park
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Publication number: 20060239721Abstract: An image-forming apparatus includes a developing unit. The developing unit has at least one carrying screw for uniformly distributing toner on a supply roller, a toner container that includes at least one mixing screw and supplies toner to the developing unit, and a toner pressure control device that controls the transfer of the toner by being rotatably mounted in a toner path between the developing unit and the toner container.Type: ApplicationFiled: January 23, 2006Publication date: October 26, 2006Inventor: Eun-sang Park
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Patent number: 7085521Abstract: Disclosed is a developing unit of a wet electrophotographic printer, which has a photoconductive drum, a developing roller for transferring a developer onto the photoconductive drum, a cartridge for storing a developer therein, a developer guide disposed at a predetermined distance away from an inner wall of the cartridge, and having a developer supplying path defined therein to guide the developer in the cartridge to the developing roller, and a developer pumping means disposed in the cartridge to pump up the developer in the cartridge toward the developing roller.Type: GrantFiled: February 19, 2004Date of Patent: August 1, 2006Assignee: Samsung Electronics Co., Ltd.Inventor: Eun-Sang Park
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Publication number: 20060083563Abstract: A used developer cleaning system is provided which removes used developer remaining on an image transmission medium after a developer image has been transferred, and an image forming apparatus having such a used developer cleaning system. The used developer cleaning system includes a cleaning section, a used developer collecting section, a first sludge filtering section, positioned in the used developer collecting section to divide the used developer collecting section into at least two spaces, and a used developer storage section for storing the used developer, from which sludge has been filtered through the first sludge filtering section. The used developer storage section communicates with the used sludge collecting section.Type: ApplicationFiled: October 6, 2005Publication date: April 20, 2006Inventors: Jun-Hee Lee, Eun-Sang Park
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Publication number: 20050100485Abstract: A device for filtering discharged air of a wet-type electrophotographic image forming apparatus capable of diffusing heat transmitted from a heater and an oxidation catalyst filter to prevent transformation of a casing of the device. The filtering device comprises a heater connected to a power unit of the image forming apparatus to generate heat. An oxidation catalyst filter is disposed adjacent to the heater to filter the discharged air through a chemical reaction with the discharged air. A filter casing holds the heater and the oxidation catalyst filter inside. A filtering device casing having the filter casing at a predetermined distance inside to form an air path through which the discharged air is drawn through a discharge path of the image forming apparatus.Type: ApplicationFiled: August 10, 2004Publication date: May 12, 2005Inventors: Jong-tae Kim, Young-sil Lee, Eun-sang Park
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Patent number: 6879804Abstract: A liquid image forming apparatus includes a waste developing agent container in which a developing agent removed by the cleaning blade from a photosensitive body is stored. The waste developing agent container is provided in a developing container.Type: GrantFiled: January 9, 2003Date of Patent: April 12, 2005Assignee: Samsung Electronics Co., Ltd.Inventor: Eun-sang Park
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Publication number: 20040253021Abstract: Disclosed is a developing unit of a wet electrophotographic printer, which has a photoconductive drum, a developing roller for transferring a developer onto the photoconductive drum, a cartridge for storing a developer therein, a developer guide disposed at a predetermined distance away from an inner wall of the cartridge, and having a developer supplying path defined therein to guide the developer in the cartridge to the developing roller, and a developer pumping means disposed in the cartridge to pump up the developer in the cartridge toward the developing roller.Type: ApplicationFiled: February 19, 2004Publication date: December 16, 2004Inventor: Eun-sang Park