Patents by Inventor Jae-Hong Ahn
Jae-Hong Ahn 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: 7582993Abstract: A motor having a reverse-rotation preventing unit, comprises: a casing; a stator fixedly-coupled to an inside of the casing; a primary rotor rotatably inserted into the stator; a motor shaft coupled to the primary rotor; a secondary rotor having a permanent magnet and rotatably inserted into an air gap between the stator and the primary rotor; a locking unit installed at an inner wall of the casing; a ratchet unit rotatably coupled to the secondary rotor, and locked or unlocked to/from the locking unit when the secondary rotor is forward-rotated or reverse-rotated, for rotating the secondary rotor in a forward direction; and a position setting unit for moving the ratchet unit to a locking position or a unlocking position by a difference between a centrifugal force generated when the secondary rotor is rotated and its restoration force. In the present invention, the motor is only forward-rotated without being reverse-rotated and thus a reliability thereof is enhanced.Type: GrantFiled: June 13, 2006Date of Patent: September 1, 2009Assignee: LG Electronics Inc.Inventors: Seung-Do Han, Seung-Suk Oh, Jae-Hong Ahn, Hyoun-Jeong Shin, Dong-Il Lee
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Patent number: 7511395Abstract: A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first synchronous rotor slid in a longitudinal direction of the shaft between the stator and the induction rotor and free-rotatably installed in a circumferential direction of the shaft, and a second synchronous rotor facing the first synchronous rotor, slid in a longitudinal direction of the shaft between the stator and the induction rotor, and free-rotatably installed in a circumferential direction of the shaft.Type: GrantFiled: December 21, 2005Date of Patent: March 31, 2009Assignee: LG Electronics Inc.Inventors: Seung Do Han, Hyoun Jeong Shin, Jae Hong Ahn
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Publication number: 20080301568Abstract: Disclosed is a method for proposing a meeting in a moblog-based regional community service through a mobile terminal. The method includes the steps of setting a plurality of main arenas by dividing a geographical area in a regional unit, setting and storing one or more virtual spatial locations, the one or more virtual spatial locations being a projection of real spatial public locations, as spots in one of the main arenas; selecting one of the spots belonging to the main arena from information on a location of the mobile terminal and entering into the selected spot; and registering a meeting proposal post in the selected spot.Type: ApplicationFiled: July 19, 2005Publication date: December 4, 2008Inventors: Hyuck Jin Im, Ji Hoon Kim, Kun Yong Park, Jung Wook Seo, Chester An, Yong Lee, II, Chol Hong Im, Jonathan Kim, Ui Chung Chung, Youn Kyung Go, Hyun Jung Kwon, Soo Jin Kim, Jae Hong Ahn, Don Hi Won, Sung Wha Shim
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Patent number: 7459814Abstract: The hybrid induction motor includes a housing; a stator installed in the housing and having a stator core portion and a stator coil portion; a rotor coupling body having a rotary shaft rotatably installed in at the housing, a cage rotor portion rotating integrally with the rotary shaft, and a permanent magnet rotor portion coupled to a circumference of the cage rotor portion with a certain air gap so as to rotate freely with respect to the rotary shaft; and a reverse rotation preventing switch, when the rotary shaft rotates reversibly, coming in contact with the permanent magnet rotor portion which is moved along the shaft by thrust generated by the rotor coupling body and cutting off power being supplied to the stator coil portion.Type: GrantFiled: January 5, 2006Date of Patent: December 2, 2008Assignee: LG Electronics Inc.Inventors: Dong-Il Lee, Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn, Seung-Suk Oh
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Patent number: 7459815Abstract: An induction motor having a reverse-rotation preventing function, comprises: a stator provided with a winding coil generating flux by a current; an induction rotor provided with a cage and rotatably inserted in the stator, wherein a rotary shaft is coupled to its inside; a synchronous rotor provided with a permanent magnet and rotatably coupled between the stator and the induction rotor; an induction-force generating unit generating a force for moving the synchronous rotor in an axial direction; and a rotation preventing unit preventing a reverse rotation by fixing the synchronous rotor moved by the induction-force generating unit at the time of reverse rotation of the synchronous rotor.Type: GrantFiled: January 27, 2006Date of Patent: December 2, 2008Assignee: LG Electronics Inc.Inventors: Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn, Seung-Suk Oh, Dong-Il Lee
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Patent number: 7439644Abstract: A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first synchronous rotor installed between the stator and the induction rotor in a circumferential direction of the shaft so as to be freely rotatable, and a second synchronous rotor facing the first synchronous rotor in a longitudinal direction of the shaft and installed between the stator and the induction rotor so as to be freely rotatable.Type: GrantFiled: January 5, 2006Date of Patent: October 21, 2008Assignee: LG Electronics Inc.Inventors: Jeong-Chul Kim, Dong-Il Lee, Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn, Seung-Suk Oh
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Patent number: 7294949Abstract: A single-phase induction motor comprises a stator having a stator coil; an induction cage rotor rotatably inserted into a receiving groove of the stator, having a rotation shaft at a center thereof, having a plurality of first conductor bars at an outer peripheral portion thereof with the same interval in a circumferential direction, having a protrusion portion at an outer circumferential surface thereof, and having a plurality of second conductor bars installed at the protrusion portion in a circumferential direction; and a permanent magnet rotor free-rotatably installed between the stator and the induction cage rotor.Type: GrantFiled: October 19, 2005Date of Patent: November 13, 2007Assignee: LG Electronics Inc.Inventors: Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn
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Publication number: 20070164699Abstract: An apparatus and method for varying a speed of a hybrid induction motor (HIM). The apparatus comprises a starting capacitor; a driving capacitor; at least one speed varying capacitor for varying a speed of a HIM by a control signal; and a controlling unit for analyzing a user's commands and outputting a control signal to vary the speed of the HIM based on a result of the analysis.Type: ApplicationFiled: December 26, 2006Publication date: July 19, 2007Applicant: LG ELECTRONICS INC.Inventors: Seung-Suk OH, Jae-Hong AHN, Hyoun-Jeong SHIN
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Publication number: 20070148348Abstract: An evaporation source and method for depositing a thin film, including a crucible having a predetermined space for placing a deposition material and at least one baffle, the baffle positioned inside the crucible and parallel to the predetermined space to divide the crucible into a plurality of channels, a heating unit, and at least one spray nozzle in fluid communication with the crucible, the spray nozzle having a plurality of spray orifices.Type: ApplicationFiled: October 20, 2006Publication date: June 28, 2007Inventors: Myung Soo Huh, Kazuo Furuno, Sang Jin Han, Jae Hong Ahn, Seok Heon Jeong
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Publication number: 20070081103Abstract: A display apparatus includes a display unit; a signal processing unit which processes an image signal to be displayed on the display unit; a color transforming unit which adjusts a white balance of the image signal input from the signal processing unit within a color area defined by a set of adjacent colors in a color space; and a controlling unit which controls the color transforming unit to perform color-transformation on only a white color within the color area of colors of the image signal in order to adjust the white balance of the image signal.Type: ApplicationFiled: October 5, 2006Publication date: April 12, 2007Inventors: Jae-hong Ahn, Kil-soo Park
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Publication number: 20060284505Abstract: An induction motor comprising a stator including main winding coils and sub winding coils wound in a stator core, respectively, the main winding coil having a volume greater than that of the sub winding coil, a primary rotor rotatably inserted in the stator, and a secondary rotor rotatably inserted in an air gap between the stator and the primary rotor, whereby counter electromotive force of the main winding coils is increased and resistance thereof is decreased, and thus an operation efficiency can be improved and starting voltage and break down voltage can be reduced.Type: ApplicationFiled: June 13, 2006Publication date: December 21, 2006Applicant: LG ELECTRONICS INC.Inventors: Seung-Do HAN, Seung-Suk OH, Jae-Hong AHN, Hyoun-Jeong SHIN
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Publication number: 20060284509Abstract: An induction motor includes: a stator in which a plurality of winding coils wound in a central direction of a stator core are arranged; an induction rotor rotatably inserted into the stator; and a synchronous rotor including a magnet and rotatably inserted into an air gap between the stator and the induction rotor, so that the induction motor reduces the size of the whole motor and has a structure of a compact size to thereby reduce installation space and manufacturing cost and increase output power and efficiency.Type: ApplicationFiled: January 26, 2006Publication date: December 21, 2006Applicant: LG Electronics Inc.Inventors: Seung-Do Han, Seung-Suk Oh, Jae-Hong Ahn, Hyoun-Jeong Shin
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Publication number: 20060284500Abstract: A motor having a reverse-rotation preventing unit, comprises: a casing; a stator fixedly-coupled to an inside of the casing; a primary rotor rotatably inserted into the stator; a motor shaft coupled to the primary rotor; a secondary rotor having a permanent magnet and rotatably inserted into an air gap between the stator and the primary rotor; a locking unit installed at an inner wall of the casing; a ratchet unit rotatably coupled to the secondary rotor, and locked or unlocked to/from the locking unit when the secondary rotor is forward-rotated or reverse-rotated, for rotating the secondary rotor in a forward direction; and a position setting unit for moving the ratchet unit to a locking position or a unlocking position by a difference between a centrifugal force generated when the secondary rotor is rotated and its restoration force. In the present invention, the motor is only forward-rotated without being reverse-rotated and thus a reliability thereof is enhanced.Type: ApplicationFiled: June 13, 2006Publication date: December 21, 2006Applicant: LG ELECTRONICS INC.Inventors: Seung-Do HAN, Seung-Suk OH, Jae-Hong AHN, Hyoun-Jeong SHIN, Dong-Il LEE
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Publication number: 20060226722Abstract: A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first synchronous rotor free-rotatably installed between the stator and the induction rotor in a circumferential direction of the shaft, and a second synchronous rotor facing the first synchronous rotor and free-rotatably installed between the stator and the induction rotor in a longitudinal direction of the shaft.Type: ApplicationFiled: January 5, 2006Publication date: October 12, 2006Applicant: LG Electronics Inc.Inventors: Jeong-Chul Kim, Dong-Il Lee, Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn, Seung-Suk Oh
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Publication number: 20060208597Abstract: The hybrid induction motor includes a housing; a stator installed in the housing and having a stator core portion and a stator coil portion; a rotor coupling body having a rotary shaft rotatably installed in at the housing, a cage rotor portion rotating integrally with the rotary shaft, and a permanent magnet rotor portion coupled to a circumference of the cage rotor portion with a certain air gap so as to be freely rotatable with respect to the rotary shaft; and a reverse rotation preventing switch, when the rotary shaft rotates reversibly, coming in contact with the permanent magnet rotor portion which is moved along the shaft by thrust generated by the rotor coupling body and cutting off power being supplied to the stator coil portion.Type: ApplicationFiled: January 5, 2006Publication date: September 21, 2006Applicant: LG Electronics Inc.Inventors: Dong-Il Lee, Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn, Seung-Suk Oh
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Publication number: 20060175924Abstract: An induction motor having a reverse-rotation preventing function, comprises: a stator provided with a winding coil generating flux by a current; an induction rotor provided with a cage and rotatably inserted in the stator, wherein a rotary shaft is coupled to its inside; a synchronous rotor provided with a permanent magnet and rotatably coupled between the stator and the induction rotor; an induction-force generating unit generating a force for moving the synchronous rotor in an axial direction; and a rotation preventing unit preventing a reverse rotation by fixing the synchronous rotor moved by the induction-force generating unit at the time of reverse rotation of the synchronous rotor.Type: ApplicationFiled: January 27, 2006Publication date: August 10, 2006Applicant: LG ELECTRONICS INCInventors: Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn, Seung-Suk Oh, Dong-Il Lee
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Publication number: 20060147628Abstract: In a method of controlling an effusion cell in a deposition system, including a crucible, a guiding pathway and an injection nozzle, a guiding pathway and an injection nozzle are heated. The crucible is heated after heating the guiding pathway and the injection nozzle. In addition, in cooling the effusion cell including a crucible, a guiding pathway and an injection nozzle, the crucible is cooled. The guiding pathway and the injection nozzle are cooled after cooling the crucible. This method has an advantage of enhancing uniformity of the organic layer formed on the substrate by preventing the clogging of the injection nozzle by deposition material vaporized in the crucible or splashing.Type: ApplicationFiled: January 5, 2006Publication date: July 6, 2006Inventors: Min-Jeong Hwang, Kwan-Seop Song, Do-Geun Kim, Jae-Hong Ahn, Sung-Ho Lee
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Publication number: 20060131984Abstract: A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first synchronous rotor slid in a longitudinal direction of the shaft between the stator and the induction rotor and free-rotatably installed in a circumferential direction of the shaft, and a second synchronous rotor facing the first synchronous rotor, slid in a longitudinal direction of the shaft between the stator and the induction rotor, and free-rotatably installed in a circumferential direction of the shaft.Type: ApplicationFiled: December 21, 2005Publication date: June 22, 2006Applicant: LG ELECTRONICS INC.Inventors: Seung-Do HAN, Hyoun-Jeong SHIN, Jae-Hong AHN
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Publication number: 20060130766Abstract: A deposition source having a constant deposition rate and high reproducibility, and a deposition apparatus including the deposition source includes: a heating chamber having a linear opening portion; and a cover including a plurality of holes and attached to the linear opening portion of the heating chamber. The distances between the holes formed on the cover vary along a long side direction of the linear opening portion of the heating chamber. The number of holes formed on the cover along a long side direction of the linear opening portion of the heating chamber can also vary.Type: ApplicationFiled: November 30, 2005Publication date: June 22, 2006Inventors: Do-Geun Kim, Jae-Hong Ahn, Kwan-Seop Song, Myung-Soo Huh, Seok-Heon Jeong
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Publication number: 20060087190Abstract: A single-phase induction motor comprises a stator having a stator coil; an induction cage rotor rotatably inserted into a receiving groove of the stator, having a rotation shaft at a center thereof, having a plurality of first conductor bars at an outer peripheral portion thereof with the same interval in a circumferential direction, having a protrusion portion at an outer circumferential surface thereof, and having a plurality of second conductor bars installed at the protrusion portion in a circumferential direction; and a permanent magnet rotor free-rotatably installed between the stator and the induction cage rotor.Type: ApplicationFiled: October 19, 2005Publication date: April 27, 2006Inventors: Seung-Do Han, Hyoun-Jeong Shin, Jae-Hong Ahn