Semes Co., Ltd.

Korea Institute of Science and Technology

Amotech Co., Ltd.

Amotron Co., Ltd.

Byung Kyu Kim

Dukhyun Son

Chang Hak Choi

Joon Suk Kim

Sahn Nahm

Jun Hwan Jeong

Hwack Joo Lee

Young-Ho Kim

Jin-Woo Lee

Han Min Jung

Jong-Oh Park

Byeong-kwon Ju

Seok Pyo Yun

Tae-Song Kim

Min Han Kim

Kyung Wook Kim

Jae-Hyeok Shim

Young Whan Cho

Dong-Ik Kim

Jin-Yoo Suh

Young-Su Lee

In Suk Choi

Ji-Yoon Kang

Jong Oh Park

Woo Sang Jung

Sung-Wook Moon

Yu-Ri Kang

Kyeong-Kap Paek

Ju Heon Kim

Jung In Yang

Disclosed is a container. The container includes a housing having an interior space, and a support part that supports an expendable component in the interior space, and the support part includes an alignment pin that aligns the expendable component.

Container and substrate treating apparatus

The substrate treating apparatus includes a processing module and an index module on which a cassette having the substrate received therein is placed and that includes an index robot that transfers the substrate between the cassette and the processing module. The processing module includes a process chamber and a transfer chamber. The process chamber includes a support unit. The support unit includes a support on which the substrate is placed and a ring member that surrounds the substrate placed on the support and that is provided so as to be detachable from the support. The apparatus further includes a carrier storage unit that stores a carrier that is mounted on a hand of the main transfer robot or the index robot and on which the ring member is placed when the ring member is transferred by the main transfer robot or the index robot.

Apparatus and method for treating substrate

Disclosed is an apparatus for transferring a substrate. The apparatus includes a transfer robot, a linear rail unit including a movable plate on which the transfer robot is mounted and a running shaft on which the movable plate travels, and a particle diffusion prevention member that prevents diffusion of particles to the outside by maintaining a differential pressure between the movable plate and the running shaft.

Substrate transfer apparatus and substrate treating apparatus

An oxidation-resistant ferritic stainless steel including a ferritic stainless steel base material, and a Cu-containing spinel-structured oxide.

Oxidation resistant ferritic stainless steel including copper-containing spinel-structured oxide, method of manufacturing the steel, and fuel cell interconnect using the steel

A method for communication between inside and outside of a transmission medium using the transmission medium as a communication line, includes the steps of: receiving an electric signal having information related to a transmission medium from a plurality of sensors inside the transmission medium; conducting the electric signal to the transmission medium; and sensing the electric signal flowing to the outside of the transmission medium. Because a modulating unit is not necessary, a power consumption is minimized. In addition, since an electric signal is directly conducted to a medium, it is not necessary to use an antenna, and thus, degradation of a reception rate according to a directional property of the antenna can be prevented. Moreover, since the electric signal is directly generated in the medium and the medium is directly used as an electric conductor, the overall size of a transmitter is reduced.

Method and apparatus for communication between inside and outside of transmission medium using transmission medium as communication line

Disclosed are methods and apparatuses for separating cells using magnets and droplet type cell suspension according to the present invention, which may effectively separate cells by forming droplet type cell suspension with cell suspension sample containing cells to which magnetic beads are coupled and applying magnetic force to the droplet type cell suspension. The apparatus of separating cells according to the present invention includes: a droplet type cell suspension forming part for forming a droplet type cell suspension under a lower part of the droplet type cell suspension forming part with cell suspension sample containing cells to which magnetic beads are coupled; a cell suspension inlet for supplying the droplet type cell suspension forming part with the cell suspension sample; a magnet for applying magnetic force to the droplet type cell suspension; a cell buffer inlet for supplying the droplet type cell suspension with cell buffer; and a temperature maintaining part for maintaining a temperature of the droplet type cell suspension.

Methods and apparatuses of separating cells using magnets and droplet type cell suspension

The present invention discloses a dielectric ceramic composition having a formula represented by (1&minus;x)Nd(Ga Al )O -xCaTiO , wherein x refers a mole fraction of CaTiO to the composition and satisfies an expression of 0.5&lE;x&lE;0.8, and y refers a mole fraction of Al to Ga and satisfies an expression of 0&lE;y&lE;0.9. The present dielectric substance has a high dielectric constant and a high Q value and a resonant frequency temperature coefficient of near 0. Also, it can be sintered at a low temperature and thus replace the conventional dielectric materials used as a filter for parts of mobile communication or satellite communication appliances.

Dielectric ceramic compositions

The present invention discloses a method for preparing Ba(Zn Ta )O dielectric ceramic compositions. In accordance with the present invention, by adding a small amount of Al O , Ga O , ZrO , or TiO , which can generate metal ion having an atomic value of 3&plus; or 4&plus;, the problems occurring during the sintering of BZT due to the volatilization of Zn can be solved. Also, the BZT dielectrics obtained from the present method have a Q value of 200,000, which is higher than the pure BZT, a dielectric constant of 28.5 or more and a resonant frequency temperature coefficient of near 0.

Method for preparing dielectric ceramic compositions

A vacuum generating apparatus for a vacuum cleaner is provided, in which an axial type coreless brushless direct-current (DC) motor is implemented in the form of a rotor-impeller integration structure. The vacuum generating apparatus includes an axial type brushless DC motor in which disc-shaped upper and lower rotors are symmetrically disposed facing the upper and lower portions of a disc-shaped stator at either end of a rotating shaft rotatably supported in the inner circumferential portion of the stator, upper and lower impellers integrally fixed in the upper and lower rotors, respectively, and upper and lower housings whose outer circumferential portions are combined with the outer circumferential portions of the respective disc-shaped stator such that air sucked via sucking inlets formed at the center of the housings is guided to a discharging outlet together with the stator. A single rotor structure can also be adopted.

Vacuum generating apparatus with multiple rotors

A two-phase brushless direct-current (BLDC) motor having a single Hall effect device. The BLDC motor includes a stator comprised of 2n coils grouping as first and second phase coils at a uniform interval, and a rotor which N-pole and S-pole magnets of the same number as that of the stator coils are alternately disposed, the 2n magnets forming n pairs, each pair of magnets are disposed at a uniform interval, wherein a distant ratio from the center of one N-pole magnet to the centers of the S-pole magnets adjacent the N-pole magnet is established into 1:1.4. Since 2n auxiliary magnets are disposed annularly on the rotor with the same length as each other corresponding to the N-pole and S-pole magnets, a single Hall effect device detects the magnetic pole by magnetic flux of the rotating auxiliary magnets and generates the rotating position signal of the rotor, so that a switching controller can activate the first and second phase coils alternately. Thus, the motor has a simple driving circuit, a high efficiency and a small torque ripple.

Two-phase brushless direct-current motor having single hall effect device

Growing community of inventors

Seoul, South Korea

Byung Kyu Kim