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Byung-Ju
Byung-Ju Choi, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110245363 | PHOTO-SENSITIVE RESIN COMPOSITION AND A PROTECTIVE FILM FOR PRINTED CIRCUIT BOARD HAVING SUPERIOR HEAT RESISTANT AND MECHANICAL PROPERTY - The present invention relates to a photo-sensitive resin composition having superior heat-resistant and mechanical property, and a protective film for printed circuit board, and particularly provides a photo-sensitive resin composition including an acid-modified oligomer, a photo-polymerizable monomer, a photo-initiator, an epoxy resin, and a butadiene-modified epoxy resin including epoxy group and at least one double bond in the main chain, and a protective film for printed circuit board prepared by using the composition. | 10-06-2011 |
Byung-Ju Kim, Seongnam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100263157 | VACUUM NOZZLE CONTROL APPARATUS AND HEAD ASSEMBLY FOR CHIP MOUNTER HAVING THE SAME - A vacuum nozzle control apparatus and a head assembly for a chip mounter having the same are provided. The vacuum nozzle control apparatus includes a nozzle module having a vacuum hole, a vacuum providing module configured to provide a vacuum to the vacuum hole through a vacuum line, and a vacuum control module configured to selectively form the vacuum in the vacuum hole through the vacuum line, or release the vacuum formed in the vacuum hole through a release line branched off from the vacuum line to expose the vacuum hole to air. | 10-21-2010 |
Byung-Ju Ko, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20080241422 | METHOD FOR AEROSOL SYNTHESIS OF CARBON NANOSTRUCTURE UNDER ATMOSPHERIC PRESSURE - The present invention relates to a method for the aerosol synthesis of carbon nanostructures under atmospheric pressure comprising a spark generation step of generating a spark between a graphite electrode made of carbon and a metal electrode made of a catalytic metal inducing the graphitization of carbon and vaporizing the carbon component of the graphite electrode and the metal component of the metal electrode utilizing the heat produced by the spark, thereby generating carbon vapor and metal vapor; and a carbon nanostructure generation step of cooling and condensing the carbon vapor and the metal vapor to form a graphitic carbon layer and catalytic metal particles and generating carbon nanostructures in which the graphitic carbon layer grows on the surface of the catalytic metal particles and covers the catalytic metal particles. | 10-02-2008 |
Byung-Ju Kwrk, Hwaseong-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090121975 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus includes: a plurality of line switching units which corresponds to a plurality of image signals and selectively transmits the plurality of image signals; an output switching unit which selectively outputs one of the plurality of image signals transmitted by the plurality of line switching units; and a controller which controls the line switching units and the output switching unit to output one of the plurality of image signals. | 05-14-2009 |