Korea Institute of Machinery & Materials

Kwang-Young Kim

Dong-Soo Kim

Seung-hyun Lee

Taik Min Lee

Dongwoo Kang

Jeong-Dai Jo

Young Man Choi

Dong Woo Kang

In Young Kim

Byung-Oh Choi

Jeong Dai Jo

Young-Bog Ham

Taik-Min Lee

Jong-Su Yu

Jeongdai Jo

So-Nam Yun

Hyun-Eui Lim

Chan-Su Yoo

Deokkyun Yoon

Dae-Won Park

Hyunchang Kim

Byung-Soon Ryu

Kyu-Jin Lim

Yunseok Jang

A linear motor according to an exemplary embodiment of the present invention includes a frame having a bottom and two sidewalls and extending in a longitudinal direction, multiple coil modules repeatedly disposed on the bottom in the longitudinal direction and configured to constitute a stator, a mover disposed on the two sidewalls in a width direction intersecting the longitudinal direction, the mover being movable in the longitudinal direction, thrust magnets mounted at a lower side of the mover and selectively corresponding to the multiple coil modules, and a Hall switching board mounted on an inner surface of one of the two sidewalls and having first Hall sensors (switching Hall sensors) operated by a magnetic field corresponding to the thrust magnets so that a driver controls phase conversion of the multiple coil modules.

Linear motor and linear motor control system

A method of measuring feeding velocity of a web, on which a scale having pitches different from pitches of a mask are formed, is provided. The method includes: calculating a number of vibrations of a moir&#xe9; image of light passing through the mask and the scale; calculating pitches of the scale of the fed web based on the calculated number of vibrations of the moir&#xe9; image; averaging the pitches of the scale so that a change in a pitch between adjacent timings among the calculated pitches of the scale is minimized; extracting first signals corresponding to our phases for one pitch based on the averaged pitches of the scale; calculating two second signals for forming a Lissajous circle from the first signals; and calculating an angle of the Lissajous circle by the two second signals and then calculating the feeding velocity of the web by using the calculated angle.

Apparatus and method of measuring web feeding velocity by using single field encoder

Disclosed in that an electrode composition including active carbon and a hardening polymer binder, a cured material of the composition, an electrode including the cured material, a supercapacitor including the electrode, and a method of manufacturing a supercapacitor.

Electrode composition for supercapacitor, electrode including cured material, and supercapacitor including electrode

Provided is an integrated coating system. An integrated coating system according to an exemplary embodiment of the present invention includes: a unwinding means provided with a roll to supply a web; a worktable roll configured to support the web supplied from the unwinding means; a plurality of printing means configured to perform printing or coating on the web supplied from the unwinding means; a plurality of curing means each of which is modulated to cure a printing material on the web passing through at least one printing means; and a winding means around which the web, of which printing or coating work is completed by passing through the curing means, is wound in a roll shape.

Integrated coating system

A printing device using thermal roll imprinting and a patterned plate according to the present invention includes: a first supply roll continuously supplying a patterning film; a heating roll and a first sub-roll imprinting a first pattern in the patterning film supplied from the first supply roll by pressing the patterning film from both sides thereof to form a patterning plate; an imprinting mask provided with an original pattern to be imprinted to the patterning film and mounted on the surface of the heating roll; a first recovery roll recovering the patterned plate; a rotatable inking roll inking the first pattern imprinted to the patterned plate; a doctor blade forming a second; a blanket roll forming a third pattern; and a second sub-roll forming a fourth pattern by pressing a printing film and printing the third pattern of the blanket roll to the printing film.

Printing device using thermal roll imprinting and patterned plate, microfluodic element using the same, film laminating device for sensor, and printing method

The present invention discloses an apparatus for manufacturing electronic devices using a roll-to-roll rotary pressing process, comprising a winding roll around which flexible printing paper is wound; a plurality of printing units arranged in a straight line; at least one coating unit; a rewinding roll to rewind the printing paper when printing has been completed; a plurality of guide rolls arranged between the winding roll and the rewinding roll, thus guiding the printing paper; a plurality of drying units, each drying unit being provided on a printing paper-path between the printing unit and the adjacent guide roll to dry ink transferred to the printing paper or on a printing paper-path between the coating unit and the adjacent guide roll to dry the printing paper on which coating agent is supplied; and tension regulating units installed around the winding roll and the rewinding roll, respectively, for regulating tension of the printing paper.

Method and apparatus for manufacturing electronic device using roll-to-roll rotary pressing process

Expansion joint apparatus which can be installed at junctions between upper structures of a road and a bridge. In a state of applying the apparatus to a bridge, each wheel in a same shaft of a vehicle passes the apparatus at different time spots, that is, when any one wheel passes one of the support members, the other wheel passes the other support member. Thus, a load applied to the bridge is distributed. The apparatus is made of material having high stiffness so that it lasts a long time. By changing the number of the intermediate support members, an expansion range of the apparatus can be controlled.

Expansion joint apparatus

Growing community of inventors

Daejeon, South Korea

Kwang-Young Kim