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Patent Agency Ranking
公开(公告)号：US11383297B2
公开(公告)日：2022-07-12
申请号：US16400412
申请日：2019-05-01
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Ik Hyun Oh , Hyun Kuk Park , Jun Ho Jang , Hyun Rok Cha , Jeong Han Lee
Abstract: A method of manufacturing a metal hybrid, heat-dissipating material includes the steps of (a) preparing a spherical metal powder and a flake graphite powder having an aspect ratio greater than 1, respectively; (b) preparing a powder mixture by inserting only the spherical metal powder and the flake graphite powder into a container, followed by dry mixing the powder mixture using a multi-axial mixing method for rotating or vibrating the container about two or more different rotation axes without any liquid input and without any mixing aids; (c) manufacturing a green compact by pressing the powder mixture; and (d) sintering the green compact to provide the metal hybrid, heat-dissipating material.
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公开(公告)号：US20140182347A1
公开(公告)日：2014-07-03
申请号：US13731468
申请日：2012-12-31
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun Rok Cha , Dae Yeong Im
IPC: B21C23/00
CPC classification number: B21C23/004
Abstract: Disclosed herein is an ultrasonic extrusion apparatus which causes resonance of an extrusion die using ultrasonic vibrations, thus reducing friction between the extrusion die and an extrusion material. The ultrasonic extrusion apparatus has an increased number of ultrasonic vibrators provided around the extrusion die in the circumferential direction to increase the vibration output, whereby when extruding a metal material such as a magnesium material, friction between the metal material and the extrusion die can be reduced, thus improving the performance of the extrusion process (preventing a reduction in an extrusion rate, generation of heat, cracking of a product, errors in measurements, etc.).
Abstract translation: 本文公开了一种超声波挤出装置，其使用超声波振动引起挤出模头的共振，从而减少挤出模头和挤出材料之间的摩擦。 超声波挤压装置在周向上具有设置在挤压模周围的超声波振动器数量增加，以增加振动输出，由此，当挤出金属材料如镁材料时，可以减少金属材料和挤出模头之间的摩擦 ，从而提高挤出过程的性能（防止挤出速度降低，产生热量，产品破裂，测量误差等）。
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3.发明授权公开(公告)号：US10766543B2
公开(公告)日：2020-09-08
申请号：US16212562
申请日：2018-12-06
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun Rok Cha , Myeong Hwan Hwang , Jong Ho Han , Dong Hyun Kim , Gil Woo Choi , Se Hyeon Yang , Gye Seong Lee , Hae Sol Lee
Abstract: A joint member for coupling a chassis frame according to the present invention, which couples frames composing a chassis, includes a block-shaped main body and a first insertion groove into which one end portion of a first frame, which is a frame extending in a width direction of the chassis, is inserted and which is formed on one surface of the main body, and the plurality of first insertion grooves are formed in a longitudinal direction of the chassis so that a length of the chassis is changed according to a position at which the first frame is inserted.
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公开(公告)号：US09696364B2
公开(公告)日：2017-07-04
申请号：US14529177
申请日：2014-10-31
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Dae Yeong Im , Hyun Rok Cha , Bong Kee Park , Jin Ho You
CPC classification number: G01R31/024 , G06F3/0416 , G06F3/0418 , G06F3/044
Abstract: Disclosed herein is an apparatus and method for detecting a fault in a digitizer. The apparatus includes a function generator for generating test signals, a transmitting switch for transmitting the test signals generated by the function generator to a selective part or all of X- and Y-channels of a transmitting digitizer, a receiving digitizer arranged in a shape identical to that of the transmitting digitizer to be adjacent to the transmitting digitizer, the receiving digitizer receiving reception signals produced by the transmitting digitizer, a receiving switch for receiving resulting signals, generated by the receiving digitizer in response to the reception signals, from a selective part or all of X- and Y-channels of the receiving digitizer, a channel controller for controlling the transmitting switch and the receiving switch, a data collection unit for collecting the resulting signals, and an analysis unit for analyzing the collected resulting signals.
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公开(公告)号：US09156072B2
公开(公告)日：2015-10-13
申请号：US13731468
申请日：2012-12-31
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun Rok Cha , Dae Yeong Im
IPC: B21C23/00
CPC classification number: B21C23/004
Abstract: Disclosed herein is an ultrasonic extrusion apparatus which causes resonance of an extrusion die using ultrasonic vibrations, thus reducing friction between the extrusion die and an extrusion material. The ultrasonic extrusion apparatus has an increased number of ultrasonic vibrators provided around the extrusion die in the circumferential direction to increase the vibration output, whereby when extruding a metal material such as a magnesium material, friction between the metal material and the extrusion die can be reduced, thus improving the performance of the extrusion process (preventing a reduction in an extrusion rate, generation of heat, cracking of a product, errors in measurements, etc.).
Abstract translation: 本文公开了一种超声波挤出装置，其使用超声波振动引起挤出模头的共振，从而减少挤出模头和挤出材料之间的摩擦。 超声波挤压装置在周向上具有设置在挤压模周围的超声波振动器数量增加，以增加振动输出，由此，当挤出金属材料如镁材料时，可以减少金属材料和挤出模头之间的摩擦 ，从而提高挤出过程的性能（防止挤出速度降低，产生热量，产品破裂，测量误差等）。
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