Patents Assigned to Amotech Co., Ltd.
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Patent number: 11963067Abstract: A method for providing a location tracking service on the basis of context-aware information of a location tracker, according to the present invention, transmits a signal while changing a communication method by classify a situation as an emergency situation and a normal state which is a non-emergency situation according to the context-aware information of the location tracker, such that it is possible to use power consumption reduced by a low-power communication method in the normal state, and in case of the emergency situation, to safely handle the emergency situation through a sufficient power communication method.Type: GrantFiled: May 27, 2020Date of Patent: April 16, 2024Assignee: AMOTECH CO., LTD.Inventors: Hyungil Baek, Kyunghyun Ryu, Hoeyoung Hwang, Chanwoo Lee, Seongjae Ahn
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Publication number: 20240116822Abstract: A method for manufacturing a silicon nitride substrate is provided. The method comprises the steps of: preparing a ceramic composition containing a metal silicon powder and a crystalline phase control powder containing a rare earth element-containing compound and a magnesium-containing compound; manufacturing a sheet-shaped molded body of a slurry prepared by mixing a solvent and an organic binder with the ceramic composition; and performing heat treatment including a nitrification section where heat treatment is performed at a first temperature in the range of 1300-1500° C. together with the application of nitrogen gas to the molded body at a predetermined pressure and a sintering section where heat treatment is performed at a second temperature in the range of 1700-1900° C.Type: ApplicationFiled: May 3, 2022Publication date: April 11, 2024Applicant: AMOTECH CO., LTD.Inventors: Kyu Hwan PARK, Hun CHEONG
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Patent number: 11949155Abstract: Suggested is an antenna module which maximizes a characteristic of isolation between two radiation patterns located adjacent to each other by forming a ground wall, by means of through-holes, at the radiation patterns. The suggested antenna module comprises: a first radiation pattern disposed on the upper surface of a base substrate; a second radiation pattern disposed on the upper surface of the base substrate while being spaced away from the first radiation pattern; a plurality of first through-holes arranged in parallel with one side of the first radiation pattern facing the second radiation pattern; and a plurality of second through-holes arranged in parallel with one side of the second radiation pattern facing the first radiation pattern.Type: GrantFiled: October 19, 2020Date of Patent: April 2, 2024Assignee: AMOTECH CO., LTD.Inventors: Hongdae Jung, Yunsik Seo, Hyungil Baek, Hyunjoo Park
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Patent number: 11949151Abstract: Proposed is a smart antenna module for a vehicle in which a plurality of cellular antennas are mounted in a non-ground area and spaced apart from a ground pattern to minimize mutual interference. In the proposed smart antenna module for a vehicle, a first antenna is disposed in a ground area of a base substrate, the cellular antennas are disposed in a non-ground area of the base substrate, and the cellular antennas are electrically connected to the ground area of the lower surface of the base substrate.Type: GrantFiled: September 24, 2020Date of Patent: April 2, 2024Assignee: AMOTECH CO., LTD.Inventor: Chul Hwang
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Publication number: 20240087801Abstract: Disclosed is a stacked common mode filter in which an ESD absorption layer is arranged in a common mode filter applied to the mipi C-PHY standard, so that damage to an element caused by ESD is prevented while a change in filter performance is prevented. The disclosed stacked common mode filter comprises: a filter layer having a plurality of coils; a lower magnetic layer arranged below the filter layer; an upper magnetic layer arranged on the filter layer; and an ESD absorption layer arranged inside the lower magnetic layer and/or the upper magnetic layer.Type: ApplicationFiled: September 24, 2020Publication date: March 14, 2024Applicant: AMOTECH CO., LTD.Inventor: Byungguk LIM
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Patent number: 11920601Abstract: A cooling fan includes: a fan housing having an air outlet for discharging air and an air inlet for introducing air; a rotation shaft having a lower portion rotatably supported by the fan housing; a rotor fixed to an upper portion of the rotation shaft; a stator arranged inside the rotor with a predetermined gap with respect to the rotor; an impeller connected to an outer periphery of the rotor and rotated together with the rotor; a printed circuit board (PCB) arranged below the stator to connect power to the stator and having mounted thereon various circuit components of the motor driving circuit; and a PCB housing box connected to the rear surface of the fan housing through a plurality of bridges and accommodating the PCB in a center thereof.Type: GrantFiled: October 22, 2021Date of Patent: March 5, 2024Assignee: AMOTECH CO., LTD.Inventor: Byung Soo Kim
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Patent number: 11923609Abstract: Disclosed is a radar antenna including an antenna body including a first plate and a second plate; a slot radiation part and a slot reception part formed in the first plate; a transmission port and a reception port formed in the second plate; and a waveguide formed by assembling the first and second plates. The slot radiation part includes a first slot radiation part configured to radiate a radio wave in a first detection range, and a second slot radiation part configured to radiate radio waves in a second detection range having a larger width and distance than the first detection range.Type: GrantFiled: May 27, 2020Date of Patent: March 5, 2024Assignee: AMOTECH CO., LTD.Inventors: Hyun Joo Park, Kyung Hyun Ryu, Yun Sik Seo, Se Ho Lee, Jeong Geun Heo, Han Ju Do, Hyung Ii Baek
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Publication number: 20240072444Abstract: This disclosure presents a multiband patch antenna which resonates in a second frequency band as well as in a first frequency band, i.e., a GNSS frequency band, by adding an antenna pin to a patch antenna. The presented multiband patch antenna includes a base substrate, an upper patch disposed on an upper surface of the base substrate, a lower patch disposed on a lower surface of the base substrate, a feed pin which passes through the base substrate, the upper patch, and the lower patch, and an antenna pin which is spaced apart from the feed pin and passes through the base substrate and the lower patch.Type: ApplicationFiled: January 13, 2022Publication date: February 29, 2024Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Patent number: 11909499Abstract: A transmitting and receiving antenna system of an LPWAN repeater, according to the present invention, comprise: a first antenna and a second antenna that become a transmitting antenna according to a use's setting; a switch coupled to each of the first antenna and the second antenna; a third antenna for reception; an RF receiving end connected to the third antenna for reception; and a control unit for controlling the RF transmitting end and the RF receiving end through switching of the switch, wherein the first antenna is a dipole antenna having multiple directionalities, the second antenna is a directional patch antenna for transmitting signals in one orientational direction, and the third antenna includes an omni-directional antenna.Type: GrantFiled: December 2, 2019Date of Patent: February 20, 2024Assignee: AMOTECH CO., LTD.Inventors: Yonggil Jo, Hyungil Baek, Jaeil Park, Kyunghyun Ryu
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Patent number: 11908624Abstract: Disclosed is a broadband capacitor in which an electrode unit comprises a main electrode and a plurality of side electrodes so as to facilitate changing of capacitance value. The disclosed broadband capacitor is formed by alternately stacking a first electrode set, which comprises a first main electrode and a plurality of side electrodes spaced apart from the first main electrode, and a second electrode set, which comprises a second main electrode and a plurality of side electrodes spaced apart from the second main electrode.Type: GrantFiled: October 16, 2020Date of Patent: February 20, 2024Assignee: AMOTECH CO., LTD.Inventor: Byungguk Lim
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Publication number: 20240030611Abstract: Disclosed is a patch antenna in which coupling gaps are formed between a lower patch and feed pins so as to maximize the performance of the antenna. The disclosed patch antenna comprises: a base layer; an upper patch disposed on the upper surface of the base layer; a lower patch disposed on the lower surface of the base layer; and feed pins passing through the base layer, upper patch, and lower patch, wherein the feed pins are spaced from the upper patch and thereby form coupling gaps.Type: ApplicationFiled: June 23, 2023Publication date: January 25, 2024Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Patent number: 11881612Abstract: An electronic device according to various embodiments of the present disclosure can comprise: a front plate facing a first direction; a rear plate facing a second direction, which is opposite to the first direction; at least one antenna module arranged between the front plate and the rear plate; and at least one heat dissipation sheet spaced from the at least one antenna module so as to be arranged to come in contact with the rear plate. The at least one heat dissipation sheet can comprise a ceramic filler and a binder resin mixed with the ceramic filler.Type: GrantFiled: August 13, 2021Date of Patent: January 23, 2024Assignees: Samsung Electronics Co., Ltd., Amotech Co., Ltd.Inventors: Seunghoon Kang, Jinhyoung Lee, Kyungha Koo, Jinmyoung Kim, Hongki Moon, Yoonsun Park, Seyoung Jang, Seungjae Hwang
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Publication number: 20240013979Abstract: Provided is a stacked ceramic capacitor package, for an electronic device, preventing noise, vibration and cracks due to piezoelectric properties. The ceramic capacitor package for an electronic device comprises: stacked ceramic capacitors; a first terminal structure connected to a first side surface of the stacked ceramic capacitors; and a second terminal structure connected to a second side surface of the stacked ceramic capacitors and disposed so as to face the first terminal structure with the stacked ceramic capacitors therebetween. The first terminal structure has a first groove defined in an area coming into contact with the first side surface of the stacked ceramic capacitors. The horizontal length of the first groove is 30% to 50% of the horizontal length of the stacked ceramic capacitors.Type: ApplicationFiled: December 2, 2021Publication date: January 11, 2024Applicant: AMOTECH CO., LTD.Inventors: Yugyeong GU, Jaewook LEE
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Patent number: 11827178Abstract: The present invention is to perform position estimation in relation to a vehicle and a key module by using an ultra-wideband (UWB) and, specifically, relates to a method and system for precise position estimation for a vehicle, whereby position can be estimated, with effects minimized that result from the type of the vehicle and the quality of exterior metal of the vehicle.Type: GrantFiled: October 22, 2019Date of Patent: November 28, 2023Assignee: AMOTECH CO., LTD.Inventors: Hyungil Baek, Kyunghyun Ryu, Jaeil Park, Chanwoo Lee, Hanju Do
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Patent number: 11811445Abstract: A portable terminal cover fastened to a portable terminal not including a UWB module comprises: a first antenna driven by receiving wireless power through a wireless power transmission with a portable terminal; a second antenna, which is driven by the wireless power supplied from the first antenna so as to measure and receive the location and distance data for an object within a communication range; a third antenna, which is operated by the wireless power supplied from the first antenna so as to transmit the location and distance data, having been measured by the second antenna, to the portable terminal; and a control unit for controlling the first, second and third antennas.Type: GrantFiled: August 13, 2019Date of Patent: November 7, 2023Assignee: AMOTECH CO., LTD.Inventors: Hyungil Baek, Kyunghyun Ryu, Jaeil Park, Semin Oh, Yonggil Jo
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Patent number: 11812596Abstract: A complex device is provided. A complex device according to an embodiment of the present invention comprises: a suppressor including a pair of first dielectric sheet layers having a first dielectric constant and a pair of internal electrodes spaced apart from each other on one surface of one of the pair of first dielectric sheet layers; a capacitor including a plurality of second dielectric sheet layers having a second dielectric constant and a plurality of capacitor electrodes provided on each of the plurality of second dielectric sheet layers; and a pair of external terminals provided on both sides of the suppressor and the capacitor to be connected to the plurality of capacitor electrodes and the pair of internal electrodes. Here, provided is the complex device in which the first dielectric constant is greater than the second dielectric constant.Type: GrantFiled: September 17, 2020Date of Patent: November 7, 2023Assignee: AMOTECH CO., LTD.Inventor: Byung guk Lim
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Publication number: 20230307838Abstract: Proposed is an RFID antenna module in which feed pins of a patch antenna are connected to a first coupler and a second coupler so that the patch antenna operates as a left hand circular polarization antenna and a right hand circular polarization antenna. The proposed RFID antenna module comprises first to fourth feed pins penetrating through a laminate in which a dielectric, an upper patch, and a lower patch are laminated, and the first to fourth feed pins are spaced apart from each other.Type: ApplicationFiled: June 23, 2021Publication date: September 28, 2023Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Publication number: 20230307182Abstract: A high-voltage antiferroelectric and a method for manufacturing the same are provided. The antiferroelectric has a composition of PbxLa1-x([Zr1-YSnY]ZTi1-Z). The antiferroelectric is sintered at a low temperature, and has a high density and a high breakdown voltage.Type: ApplicationFiled: January 31, 2023Publication date: September 28, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, AMOTECH CO., LTD., Korea Institute of Ceramic Engineering and TechnologyInventors: Hyung Suk Kim, Sung Jin Hong, Hyun Jin Jo, Jae Woo Choi, Hyo Soon Shin, Dong Hun Yeo, Jeoung Sik Choi
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Publication number: 20230299487Abstract: Disclosed is a lightweight patch antenna having grooves formed in a dielectric, an upper patch, and a lower patch so as to maintain antenna performance while being lightweight. The disclosed lightweight patch antenna comprises: a dielectric; an upper patch layered on the dielectric; a lower patch layered under the dielectric; and a plurality of lightweight grooves formed by removing a portion of a stack from the outside of the stack in which the dielectric, the upper patch, and the lower patch are stacked.Type: ApplicationFiled: June 21, 2021Publication date: September 21, 2023Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Patent number: 11735820Abstract: Disclosed are an antenna module and a method for producing same, the antenna module having an insulating substrate interposed between a base substrate and electrodes so as to keep the base substrate apart from the electrodes and thereby prevent interference by the electrodes in the magnetic permeability of the base substrate. The disclosed antenna module comprises: a base substrate made of a magnetic material; an insulating substrate stacked on the lower surface of the base substrate; a first electrode disposed on the lower surface of the insulating substrate; a second electrode disposed, apart from the first electrode, on the lower surface of the insulating substrate; and a radiation wire which is wound around the base substrate and/or the insulating substrate and has one end thereof connected to the first electrode and the other end thereof connected to the second electrode.Type: GrantFiled: July 13, 2018Date of Patent: August 22, 2023Assignee: AMOTECH CO., LTD.Inventors: Beom Jin Kim, Jong Ho Park