Patents Assigned to Inktec Co.Ltd
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Publication number: 20140125742Abstract: Disclosed is an ink cartridge for a printer, comprising a body having an opened surface and a predetermined size to receive ink therein; a cover coupled with the body to define a desired space and having a pressure regulation part for regulating an internal pressure of the body; and a chamber instrument comprising a filling chamber having a body for receiving a part of the ink in the body, a discharging chamber connected with the filling chamber, an ink transferring channel for moving the ink received in the filling chamber to the discharging chamber, an air inducing channel for guiding air to an inside of the cartridge and an air suction valve for selectively passing the guided air.Type: ApplicationFiled: March 21, 2013Publication date: May 8, 2014Applicant: Inktec Co., Ltd.Inventor: Inktec Co., Ltd
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Patent number: 8679242Abstract: The present invention relates to a silver complex obtained by reacting at least one silver compound represented by the formula 2 below with at least one ammonium carbamate compound or ammonium carbonate compound represented by the formula 3, 4 or 5 below:Type: GrantFiled: May 11, 2012Date of Patent: March 25, 2014Assignee: Inktec Co., Ltd.Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Myoung-Seon Gong, Yi-Sup Han, Jeong-Bin Park, Dong-Hun Nam, Seong-Yong Uhm, Young-Kwan Seo
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Publication number: 20140026782Abstract: The present invention relates to a silver ink composition comprising: silver complexes obtained by reacting one or more silver compounds selected from chemical formula 1 with one or more ammonium carbamate-based compounds or ammonium carbonate-based compounds selected from chemical formula 2 to chemical formula 4; and oxime-based compounds.Type: ApplicationFiled: April 20, 2012Publication date: January 30, 2014Applicant: INKTEC CO., LTD.Inventors: Kwang-Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Dae Sang Han
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Publication number: 20140024773Abstract: The present invention relates to synthetic resin composition containing nano silver particles, in which a silver complex having a specific structure that allows formation of the nano silver particles is dissolved in monomer for the resin composition and the organic silver complex is decomposed with polymerization to prepare the synthetic resin composition containing the nano silver particles. The present invention can provide a method for resin compositions, which has simple and economic preparation process and allows uniform dispersion of the nano silver particles in the resin composition.Type: ApplicationFiled: September 20, 2013Publication date: January 23, 2014Applicant: Inktec Co., Ltd.Inventors: Myoung Seon Gong, Kwang Choon Chung, Hyun Nam Cho
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Publication number: 20140004371Abstract: The present invention relates to a method of manufacturing a transparent conductive layer and a transparent conductive layer manufactured by the method. The method of manufacturing the transparent conductive layer includes: a) a step of forming a conductive nanowire layer on a base material; b) a step of thermally treating the conductive nanowire layer; c) a step of applying a conductive metal ink on the conductive nanowire layer; and d) a step of thermally treating the base material coated with the conductive metal ink to electrically bridge the conductive nanowires with each other by conductive metal particles of the conductive metal ink.Type: ApplicationFiled: January 26, 2012Publication date: January 2, 2014Applicant: INKTEC CO., LTD.Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Nam Jung Kim, Insook Yi, Jung Ah Choi, Su Phil Kim
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Patent number: 8523307Abstract: A printing system including a computer device and an ink jet printer transmitting and receiving data with the computer device is disclosed. The large size ink jet printer includes a printer; an ink pump; a head controller controlling the operation of the printer head; a carriage with the printer head; a carriage driving part; a data path board receiving and analyzing the data and transferring a control signal to the head controller; an ink supply control board the ink pump; and an I/O controller board receiving the data from the computer device, the data path board and the ink supply control board and analyzing and transmitting the data, and the computer device including a RIP program converting an image/text signal into an image/text raster image data for printing; and a carriage driving part control program controlling the operation of the carriage driving part of the ink jet printer.Type: GrantFiled: October 14, 2009Date of Patent: September 3, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang Choon Chung, Hae Sung Jung, Ki Yong Kim, Kyung Soo Kim, Sung Chul Jeon, Chung Il Kim
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Patent number: 8518478Abstract: The present invention relates to a method of manufacturing conductive fibers, more precisely a method of manufacturing conductive fibers comprising the steps of coating silver complex compound coating solution on non-conductive fibers to coat the fibers with silver complex compound; heating the fibers to form a silver coating layer; and forming an antioxidant layer thereon, and conductive fibers prepared by the same. The method of manufacturing conductive fibers of the present invention not only is simple and easy but also requires low production costs. So, the conductive fibers prepared by the method of the present invention are not only excellent in conductivity but also excellent in other mechanical properties such as adhesive strength of the conductive layer, fiber strength and softness, etc.Type: GrantFiled: February 22, 2008Date of Patent: August 27, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang Choon Chung, Hyun Nam Cho, Jae Ho Baek, Ji Hoon Yoo
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Publication number: 20130216844Abstract: Provided are a method for preparing a transparent conductive layer and a transparent conductive layer prepared by the method. The method for preparing a transparent conductive layer includes: 1) forming a cellulose derivative film by coating a transparent substrate with a cellulose derivative coating liquid; 2) hydrolyzing the cellulose derivatives by treating the cellulose derivative film using an alkaline agent; 3) forming a metal film by coating the hydrolyzed cellulose derivative film with an organic metal ink and reducing metals on the cellulose derivative; and 4) forming a conductive metal layer by heat-treating the cellulose derivative film with the metal film formed, and a transparent conductive layer prepared by the method. According to the present invention, a process can be simplified, and also a transparent conductive layer having excellent conductivity, transmittance, bending resistance, and low haze can be prepared.Type: ApplicationFiled: July 27, 2011Publication date: August 22, 2013Applicant: INKTEC CO., LTD.Inventors: Kwang Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Yun Ho Jung, Su Phil Kim
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Publication number: 20130206315Abstract: Provided is a method for manufacturing an electromagnetic interference (EMI) shielding film, including: (a) providing a single insulating layer on a first protective film, the insulating layer being made of an insulating layer composition including at least one resin selected from a thermoplastic resin and a thermosetting resin and at least one filler selected from a flame-retardant filler and an abrasion-resistant filler; (b) providing a metal layer on the insulating layer; (c) providing a conductive adhesive layer on the metal layer, the conductive adhesive layer being made from a conductive adhesive layer composition including at least one resin selected from a thermoplastic resin and a thermosetting resin and a conductive filler; and (d) providing a second protective film on the conductive adhesive layer, and an EMI shielding film manufactured by the method.Type: ApplicationFiled: November 12, 2010Publication date: August 15, 2013Applicant: INKTEC CO., LTD.Inventors: Kwang Choon Chung, Hyun Nam Cho, Myung Bong Yoo, Nam-Boo Cho, Seok Pil Jin, Seong Hoon No
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Patent number: 8491866Abstract: The present invention relates to a process for preparation of silver oxide with various shape and size using a silver complex compound having a special structure. The present invention includes 1) step of preparing a precursor solution including a silver complex compound obtained by reacting a silver compound with one or more mixture selected from the group consisting of an ammonium carbamate-based compound, an ammonium carbonate-based compound or an ammonium bicarbonate-based compound in the presence of a solvent; and 2) step of preparing silver oxide by reacting the precursor solution including the silver complex compound of step 1) with an oxidant. The shape and particle size of the silver oxide prepared according to the preparation process of the present invention can be changed.Type: GrantFiled: December 4, 2008Date of Patent: July 23, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Kee In Son
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Publication number: 20130161603Abstract: Provided are a phosphaphenanthrene-carbazole-based organic light-emitting compound having superior light emitting properties, and an organic light-emitting device including the same.Type: ApplicationFiled: July 29, 2011Publication date: June 27, 2013Applicant: INKTEC CO., LTD.Inventors: Kwang Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Yun Ho Jung
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Publication number: 20130156684Abstract: A process for preparation of silver oxide with various shape and size using a silver complex compound having a special structure, includes 1) step of preparing a precursor solution including a silver complex compound obtained by reacting a silver compound with one or more mixture selected from the group consisting of an ammonium carbamate-based compound, an ammonium carbonate-based compound or an ammonium bicarbonate-based compound in the presence of a solvent; and 2) step of preparing silver oxide by reacting the precursor solution including the silver complex compound of step 1) with an oxidant. The shape and particle size of the silver oxide prepared according to the preparation process can be changed.Type: ApplicationFiled: January 31, 2013Publication date: June 20, 2013Applicant: INKTEC CO., LTD.Inventor: Inktec Co., Ltd.
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Publication number: 20130126796Abstract: Provided is a production method for a transparent conductive film wherein: a substrate has formed thereon a transparent conductive oxide, a conductive metal body, and a conductive polymer comprised in a transparent composite conductive layer; or else a substrate has formed thereon a transparent conductive oxide layer; a conductive metal body layer, and a conductive polymer layer comprised in a transparent composite conductive layer; or a substrate has formed thereon a transparent conductive oxide layer, and also a conductive metal body and a conductive polymer comprised in an organic-inorganic hybrid layer in a transparent composite conductive layer. Also provided is a transparent conductive film produced by means of the method.Type: ApplicationFiled: July 28, 2011Publication date: May 23, 2013Applicant: INKTEC CO., LTD.Inventors: Kwang Choon Chung, Hyun-Nam Cho, Ji Hoon Yoo, Yun-Ho Jung
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Publication number: 20130126478Abstract: The present invention provides an etching solution for silver or silver alloy comprising one at least ammonium compound represented by the formula (1), (2) or (3) below and an oxidant:Type: ApplicationFiled: January 15, 2013Publication date: May 23, 2013Applicant: INKTEC CO., LTD.Inventors: Kwang-Choon CHUNG, Hyun-Nam CHO, Young-Kwan SEO
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Patent number: 8445578Abstract: The present invention relates to compositions for forming reflecting layer having organic silver complexes, and method for preparing reflecting layer using the same. More specifically, it relates to compositions for forming reflecting layer including silver complexes that have distinct structures and the method for preparing reflecting layer, where primary coating is applied to promote the adhesive force to materials such as plastic, ceramic, metal, etc. and then a high-reflecting layer is formed by using the silver coating fluid, followed by transparent coating for protection.Type: GrantFiled: April 27, 2007Date of Patent: May 21, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Seong-Yong Uhm, Young-Kwan Seo
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Publication number: 20130118786Abstract: Provided are a method for manufacturing a transparent conductive film and a transparent conductive film manfuactured thereby, the method including: a) forming a coating film by coating a transparent conductive film coating solution on a substrate, the transparent conductive film coating solution including a non-polar solvent; a polar solvent; a conductive metal ink; and a surfactant; and b) forming a conductive pattern having a hole type transmissive part and a pattern part formed of the conductive metal ink, on the substrate, by drying and burning the coating film.Type: ApplicationFiled: July 28, 2011Publication date: May 16, 2013Applicant: INKTEC CO., LTD.Inventors: Kwang Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Yun-Ho Jung
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Patent number: 8425021Abstract: Disclosed is an ink cartridge for a printer, comprising a body having an opened surface and a predetermined shape to receive ink therein; a cover coupled with the body to define a desired space; and a chamber instrument comprising a filling chamber having a space for receiving a part of the ink in the body, a discharging chamber connected with the filling chamber, an ink transferring channel for moving the ink received in the filling chamber to the discharging chamber, an air guiding hold for guiding air to an inside of the cartridge, an air suction valve for selectively passing the guided air and a pressure regulating valve for regulating an internal pressure of the body.Type: GrantFiled: March 28, 2007Date of Patent: April 23, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang-Choon Chung, Chang Soo Yu, Nam Boo Cho, Young Chul Shin, Baek Song Heo, In-Ha Kim, Jae-Won Choi
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Patent number: 8398219Abstract: An ink jet printer module has a module body, an ink inlet port, a washing liquid inlet port and a pneumatic inlet port connected with the main ink tank, the washing liquid tank and the pneumatic pump. A common flow path in the interior of the module body selectively communicates with either the washing liquid flow path or the washing liquid flow path. An ink opening and closing valve is provided at the module body. A pneumatic and washing liquid selection valve is provided in the module body An ink discharge port is provided in the module body discharges the ink of the ink flow path to the outside of the module body. A common discharge port is provided in the module body and discharges either the pneumatic or the washing liquid of the common flow path.Type: GrantFiled: October 12, 2009Date of Patent: March 19, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang Choon Chung, Hae Sung Jung, Ki Yong Kim, Kyung Soo Kim, Sung Chul Jeon, Chung Il Kim
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Patent number: 8394512Abstract: The present invention relates to new phosphaphenanthrene compounds with excellent light emitting property and an organic light emitting diode (OLED) using the same.Type: GrantFiled: April 5, 2008Date of Patent: March 12, 2013Assignee: Inktec Co., Ltd.Inventors: Kwang Choon Chung, Hyun-Nam Cho, Ik-Kyu Park, Ji-Hoon Yoo, Ae-Ran Hyun, Yun-Ho Jung
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Publication number: 20130056250Abstract: Disclosed is a method for manufacturing a double-sided printed circuit board (PCB) having a circuit pattern by printing a conductive paste. According to the method of the present invention, a circuit pattern that is precise and highly conductive can be formed, and a reduction in raw materials and the simplification of processes are made possible. Also, due to the printing of the conductive paste, short-circuit can be prevented even when a conductive layer is bent or exposed to heat or physical impact.Type: ApplicationFiled: April 2, 2010Publication date: March 7, 2013Applicants: HAEUN CHEMTEC CO., LTD., INKTEC CO., LTD.Inventors: Kwang Choon Chung, Young-Koo Han, Myung-Bong Yoo, Nam-Boo Cho, Young-Ho Han, Kyong-Min Lee, Kwang-Baek Yoon, Hee-Yong Ahn, Su-Han Kim