公开(公告)号：US20240204617A1

公开(公告)日：2024-06-20

申请号：US18286662

申请日：2022-04-20

申请人： AMOTECH CO., LTD.

发明人： Jeong Hoon LEE ,  Seung Jin CHOI

IPC分类号： H02K9/06 ,  B64D33/08 ,  H02K1/278 ,  H02K1/28 ,  H02K5/20 ,  H02K7/08 ,  H02K9/19 ,  H02K9/22 ,  H02K21/16

CPC分类号： H02K9/06 ,  B64D33/08 ,  H02K1/278 ,  H02K1/28 ,  H02K5/203 ,  H02K5/207 ,  H02K7/083 ,  H02K9/19 ,  H02K9/223 ,  H02K21/16

摘要： Provided are a rotor, and a propeller driving device and an aircraft using same. The propeller driving device includes: a housing in which an upper cover and a lower cover having a plurality of through holes are respectively coupled to an upper portion and a lower portion of a cylindrical case; a stator arranged inside the case; a rotor arranged at a distance from the stator; and a rotary shaft connected to the rotor through a plurality of bridges and having both ends rotatably supported by an upper bearing and a lower bearing positioned at respective centers of the upper cover and the lower cover, wherein inner cooling of a motor is formed by an air flow passage that passes through a plurality of through holes of the upper cover and the lower cover and a plurality of spaces formed between the plurality of bridges.

公开(公告)号：US20240186706A1

公开(公告)日：2024-06-06

申请号：US18283783

申请日：2022-03-17

申请人： AMOTECH CO., LTD.

发明人： Chul HWANG

IPC分类号： H01Q9/04 ,  H01Q5/25

CPC分类号： H01Q9/0457 ,  H01Q5/25

摘要： Provided is a multi-band patch antenna which has, on a base substrate, a feeding patch and radiation patches, which are formed apart from an upper patch, so as to resonate with a first frequency band and a second frequency band. The provided multi-band patch antenna comprises: a base substrate having an upper surface, a lower surface, and a plurality of sides; an upper patch disposed on the upper surface of the base substrate; a lower patch disposed on the lower surface of the base substrate; a feeding patch disposed on the upper surface and a first side of the base substrate and disposed to be apart from the upper patch; and a first radiation patch disposed on the upper surface and a second side of the base substrate and disposed to be apart from the upper patch and the feeding patch on the upper surface of the base substrate.

公开(公告)号：US20240140798A1

公开(公告)日：2024-05-02

申请号：US18550924

申请日：2022-03-18

申请人： AMOTECH CO., LTD.

发明人： Kyu Hwan PARK ,  Hun CHEONG

IPC分类号： C01B21/068

CPC分类号： C01B21/0682 ,  C01B21/0687 ,  C01P2004/62 ,  C01P2006/32 ,  C01P2006/40

摘要： Provided is a method for preparing silicon nitride powder for manufacturing a substrate. The method for preparing silicon nitride powder for manufacturing a substrate, according to an embodiment of the present invention, comprises the steps of: preparing mixed raw material powder comprising metallic silicon powder and crystalline phase control powder; preparing the mixed raw material powder into granules having a predetermined particle size; nitrifying the granules at a predetermined temperature ranging from 1,200-1,500° C. while nitrogen gas is applied to the granules at a predetermined pressure; and pulverizing the nitrified granules. According to the method, it is easy to realize powder having an α crystal phase at a desired level, and when this is realized as a substrate, a substrate having compact density can be manufactured.

公开(公告)号：US11949151B2

公开(公告)日：2024-04-02

申请号：US17767233

申请日：2020-09-24

申请人： AMOTECH CO., LTD.

发明人： Chul Hwang

IPC分类号： H01Q1/32 ,  H01Q1/12 ,  H01Q1/48

CPC分类号： H01Q1/32 ,  H01Q1/12 ,  H01Q1/48

摘要： 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.

公开(公告)号：US20230299487A1

公开(公告)日：2023-09-21

申请号：US18013881

申请日：2021-06-21

申请人： AMOTECH CO., LTD.

发明人： Chul HWANG

IPC分类号： H01Q9/04 ,  H01Q21/06

CPC分类号： H01Q9/0414 ,  H01Q21/065

摘要： 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.

公开(公告)号：US20230054296A1

公开(公告)日：2023-02-23

申请号：US17797100

申请日：2021-01-25

申请人： AMOTECH CO., LTD.

发明人： Jinwon NOH ,  Hongdae JUNG ,  Hyungil BAEK ,  Donghyun IM ,  Euijin JUNG ,  Kisang LIM ,  Chungha BACK ,  Jooseung MAENG

IPC分类号： H01Q5/35 ,  H01Q1/24 ,  H01Q1/38 ,  H01Q1/48

摘要： Disclosed is a combo antenna module and a method for manufacturing the same, in which a combo antenna of a low frequency band and an antenna of a high frequency band are integrated to minimize the mounting space and thickness while maintaining the same level of antenna performance. The disclosed combo antenna module comprises: a first antenna in which a first antenna pattern having a first operation frequency is disposed, and an attachment area not overlapping with the first antenna pattern is defined; and a second antenna which is disposed in the attachment area and has a second antenna pattern having a second operation frequency higher than the first operation frequency and disposed on the upper surface thereof, wherein the dielectric loss value of the second antenna is lower than the dielectric loss value of the first antenna.

公开(公告)号：US20220394891A1

公开(公告)日：2022-12-08

申请号：US17754939

申请日：2020-09-17

申请人： AMOTECH CO., LTD.

发明人： Byung guk LIM

IPC分类号： H05K9/00 ,  H01C7/12 ,  H01G4/40

摘要： 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.

公开(公告)号：US20220376384A1

公开(公告)日：2022-11-24

申请号：US17767233

申请日：2020-09-24

申请人： AMOTECH CO., LTD.

发明人： Chul HWANG

IPC分类号： H01Q1/32 ,  H01Q1/48 ,  H01Q1/12

摘要： 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.

公开(公告)号：US20220368013A1

公开(公告)日：2022-11-17

申请号：US17773580

申请日：2020-10-19

申请人： AMOTECH CO., LTD.

发明人： Hongdae JUNG ,  Yunsik SEO ,  Hyungil BAEK ,  Hyunjoo PARK

IPC分类号： H01Q1/52 ,  H01Q1/48

摘要： 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.

公开(公告)号：US20220026479A1

公开(公告)日：2022-01-27

申请号：US17277660

申请日：2019-09-17

申请人： AMOTECH CO., LTD.

发明人： Jongho PARK ,  Hyungil BAEK ,  Chanwoo LEE

IPC分类号： G01R29/08 ,  G01R29/10

摘要： Disclosed is herein an antenna performance tester including: a horizontal rotor 200 rotatable about a shaft part 110 to which a DUT holder 300 is detachably coupled; and a vertical rotor 500 to which a reference antenna holder 400 is detachably fixed and which is spaced apart from a side surface of the DUT holder 300, is installed perpendicular to the horizontal rotor 200, and is rotatable about a virtual central point lying at the center. The antenna performance tester is advantageous in that: a reference antenna measures an RF while performing transmission and reception with respect to a DUT in all directions at a constant distance from the DUT; extension and replacement are possible depending on a frequency to be measured; and an influence of reflected waves is minimized at RF measurement, antenna performance can be simply tested in an anechoic chamber or even in a semi-anechoic chamber.