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Patent
Korea Institute of Machinery and Materials | Date: 2015-11-30

A detachable device of a loading unit for a robot, detachably combining the loading unit to a connection unit of the robot, includes: a first magnet unit provided in the loading unit and having a first magnet pattern; a second magnet unit provided in the connection unit, having a second magnet pattern including a pattern that corresponds to the first magnet pattern, and combined with the first magnet unit by a magnetic force generated by power applied thereto; a pattern recognition unit recognizing an object held by the loading unit and one of the first magnet pattern and the pattern corresponding to the first magnet pattern; and a matching control unit controlling power applied to the second magnet unit to apply magnetic attraction force to the first magnet pattern from a part of the second magnet pattern according to operation of the pattern recognition unit.


Patent
Korea Institute of Machinery and Materials | Date: 2016-11-29

A method of manufacturing a silicon carbide (SiC) sintered body and a SiC sintered body obtained by the method are provided. The method includes: preparing a composite powder by subjecting a SiC raw material and a sintering aid raw material to mechanical alloying; and sintering the composite powder, wherein the sintering aid is at least one selected from the group consisting of an AlC-based material, an AlBC-based material, and a BC-based material. Accordingly, a SiC sintered body that can be sintered at low temperature, can be densified, and has high strength and high electrical conductivity can be prepared.


Patent
Korea Institute of Machinery and Materials | Date: 2015-08-31

An apparatus for processing the surface of a workpiece includes: a first rotating body connected to a first rotating shaft and including a first protruding portion connected to a part of the outer circumference thereof; a second rotating body connected to a second rotating shaft and including a second protruding portion connected to a part of the outer circumference thereof; and a third rotating body connected to a third rotating shaft and including a third protruding portion connected to a part of the outer circumference thereof, wherein the first to third rotating shafts are in the same plane, a first angle between the first and second rotating shafts, a second angle between the first and third rotating shafts, and a third angle between the second and third rotating shafts are identical, outer circumferences of the first to third rotating shafts adjacent to one another form a pathway through which a workpiece can pass, and the size of the pathway is adjusted by moving the first rotating body.


Patent
Korea Institute of Machinery and Materials | Date: 2014-07-28

A sound wave metamaterial amplifies a sound wave, and includes a plate. The plate has a plurality of sound wave guides passing through both surfaces of the plate and having a predetermined pattern. The sound wave guides are spaced apart from each other by a predetermined distance and face each other, with respect to a central point, a central axis or a central surface.


Patent
Korea Institute of Machinery and Materials | Date: 2015-12-04

A method of manufacturing a wire grid polarizer includes: preparing a stamp having a nanostructure body at one surface and forming a mask layer with anisotropic vapor deposition at the one surface; forming a metal film on a substrate; transferring a mask layer of an upper portion of a nanostructure body in the mask layer onto the metal film; and patterning the metal film into metal lines by removing a portion that is not covered with the mask layer in the metal film with dry etching.


Patent
Korea Institute of Machinery and Materials | Date: 2017-03-22

A method of manufacturing a wire grid polarizer includes: preparing a stamp having a nanostructure body at one surface and forming a mask layer with anisotropic vapor deposition at the one surface; forming a metal film on a substrate; transferring a mask layer of an upper portion of a nanostructure body in the mask layer onto the metal film; and patterning the metal film into metal lines by removing a portion that is not covered with the mask layer in the metal film with dry etching.


Patent
Korea Institute of Machinery and Materials | Date: 2017-03-22

The present invention relates to a linear expander that can structurally offset vibration and noise caused from piston movement by moving pistons combined to two linear generators symmetrically provided in a body portion where a suction valve and a discharge valve are respectively provided to bilaterally opposite directions, and accordingly the expander has a simple structure and motion stability of the compressor can be improved.


Patent
Korea Institute of Machinery and Materials | Date: 2017-02-15

The present invention provides a plasma nozzle atomizing and pyrolyzing a liquid supplied by generating plasma therein to be mixed and sprayed with a gas with a fast speed by heat due to a plasma arc and flow excited chemical species. The plasma nozzle according to an exemplary embodiment of the present invention includes: a first housing discharging a supplied gas to a narrowed discharging port and being electrically grounded; a second housing provided near the discharging port of the first housing and spraying a liquid supplied through a spraying hole in the discharging port; and a driving electrode built in the first housing, forming a discharge gap along with the discharging port at an end part, and applied with a driving voltage.


Patent
Samson Co., Korea Institute of Machinery and Materials | Date: 2016-06-15

The present invention relates to the anti-loosening bolt (100) assembly including:a bolt (100) having a bolt head (110) and a bolt shank (130); a fixed nut (200) having second threads on an inner circumferential surface thereof;and a washer (300A, 300), wherein the bolt head (110) includes a plurality of locking protrusions (120), each of the locking protrusions (120) having an inclined locking surface (121) and a vertical locking surface (123, 223), the washer (300A, 300) includes a plurality of stop protrusions, each of the stop protrusions having an inclined stop surface (331) and a vertical stop surface (333), and a magnetic member (350) is provided in the washer (300A, 300) such that the magnetic member (350) maintains a combined state of the washer (300A, 300) with an objective member using a magnetic force, so that when a rotational force is applied to the bolt (100) in the loosening direction, the inclined locking surface (121) is stopped by the inclined stop surface (331), thereby preventing the bolt (100) from loosening and rotating.


Patent
Korea Institute of Machinery, Materials and Pusan National University | Date: 2016-06-07

A hole transport layer composition is for a solar cell, a preparation method is thereof, and there is a solar cell comprising the same. More precisely, a hole transport layer composition for solar cell comprises the compound represented by formula 1. The hole transport layer composition can be used as a material for hole transport layer for solar cell which displays the improved power conversion efficiency than the conventional material. In addition, the hole transport layer composition demonstrates a high hole mobility, a proper energy level, a thermo-stability, and an excellent solubility, so that it can provide a similar or higher power conversion efficiency than the conventional spiro-OMeTAD. A solar cell comprising the hole transport layer composition displays a higher power conversion efficiency because the hole transport layer composition for solar cell includes a low-molecular material having a high charge carrier mobility instead of including a high-molecular material.

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