Patents Assigned to Inktec Co.Ltd
  • Publication number: 20100261031
    Abstract: The present invention relates to the manufacturing method of metal clad laminates by forming a conductive layer on a single side or both sides of a material film that is made of an insulating material using the silver complexes having a unique structure and electroplating metals outside of said conductive layer. The present invention can provide the manufacturing method of metal clad laminates, which has a fast operation speed for mass production, simple process steps to minimize defective ratio and cheap production cost.
    Type: Application
    Filed: August 2, 2007
    Publication date: October 14, 2010
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang Choon Chung, Hyun Nam Cho, Seong-Yong Uhm
  • Publication number: 20100252818
    Abstract: The present invention relates to new phosphaphenanthrene compounds with excellent light emitting property and an organic light emitting diode (OLED) using the same.
    Type: Application
    Filed: April 5, 2008
    Publication date: October 7, 2010
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang Choon Chung, Hyun-Nam Cho, Ik-Kyu Park, Ji-Hoon Yoo, Ae-Ran Hyun, Yun-Ho Jung
  • Publication number: 20100247798
    Abstract: The present invention relates to a variety of conductive ink compositions comprising a metal complex compound having a special structure and an additive and a method for preparing the same, more particularly to conductive ink compositions comprising a metal complex compound obtained by reacting a metal or metal compound with an ammonium carbamate- or ammonium carbonate-based compound and an additive and a method for preparing the same.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 30, 2010
    Applicant: 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, Nam-Boo Cho
  • Publication number: 20100247422
    Abstract: 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: Application
    Filed: December 4, 2008
    Publication date: September 30, 2010
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Kee In Son
  • Publication number: 20100189901
    Abstract: The present invention relates to a process for preparation of silver complex compound and the compositions of silver ink containing the same. The present invention includes a) preparing silver complex compound with special structure by reacting silver compound with at least one or two mixtures selected from ammonium carbamate compound, ammonium carbonate compound or ammonium bicarbonate compound and b) preparing silver nano particles by reacting the silver complex compound with reducer or reducing or pyrolyzing the silver complex compound by applying heat thereto. The preparing method according to the present invention can prepare the silver nano practical with various shapes through a simple preparation process, improve the selectivity of the size of the silver complex compound, fire the silver complex compound even when it is fired at a low temperature of 150° C.
    Type: Application
    Filed: August 2, 2007
    Publication date: July 29, 2010
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Byung Hun Kim, Su Han Kim, Myung Bong Yoo, Nam Boo Cho, Yi Sup Han
  • Publication number: 20100166948
    Abstract: The present invention relates to a method for producing a transparent conductive film in a form of complex multi-layer film comprising at least one layer using a silver complex compound having special structure and an organic acid metal salt. The method for producing the transparent conductive film, using one or more solution processes, comprises steps of (1) forming a transparent layer over a transparent substrate to improve transmittance; and (2) forming the conductive layer allowing conductivity, and further comprises a step of (3) forming a protective layer to prevent a change over time of the conductive layer. According to the present invention, it is possible to achieve large-scaled transparent conductive film having excellent conductivity and transmittance, as well as simple processes.
    Type: Application
    Filed: June 13, 2008
    Publication date: July 1, 2010
    Applicant: INKTEC CO., LTD.
    Inventors: Hyun Nam Cho, Ji Hoon Yoo, Kwang Choon Chung
  • Patent number: 7691294
    Abstract: The present invention relates to a variety of conductive ink compositions comprising a metal complex compound having a special structure and an additive and a method for preparing the same, more particularly to conductive ink compositions comprising a metal complex compound obtained by reacting a metal or metal compound with an ammonium carbamate- or ammonium carbonate-based compound and an additive and a method for preparing the same.
    Type: Grant
    Filed: March 4, 2006
    Date of Patent: April 6, 2010
    Assignee: 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, Nam-Boo Cho
  • Patent number: 7686436
    Abstract: The present invention relates to an ink recharging system in which the ink can be recharged into a used ink cartridge repeatedly, a bulk ink cartridge used in the system, and a method for recharging the ink into the ink cartridge using them. The ink recharging system for the ink cartridge installed in an inkjet printer comprises a compressor and a positive pressure tank for providing the compression force to supply the ink stored in the quantitative ink supply cylinder to the ink cartridge, a charging cylinder for applying the compression force and the suction force to the quantitative ink supply cylinder, automatic quantitative position control means for measuring the movement displacement of the charging cylinder, a vacuum pump and a negative pressure tank for producing a vacuum in the ink cartridge, and a compressed air supply tube diverged and connected to the inlet and outlet of the charging cylinder from the positive pressure tank via the solenoid valve for air pressure.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: March 30, 2010
    Assignee: Inktec Co., Ltd.
    Inventors: Hae-Sung Jung, Chang-Soo Yu, Kwang-Choon Chung, In-Ha Kim, Ki-Hun Kang, Hyung-Ho Gil
  • Patent number: 7661804
    Abstract: An ink cartridge recharge system includes an ink cartridge mount hole in which an ink cartridge is mounted. The ink cartridge mount hole includes an ink injection part in which an ink injection hole connected to a nozzle of the ink cartridge is formed. A magnetostrictive displacement transducer is connected to the ink injection hole through an ink supply tube and determines the charged amount of ink by sensing displacement of magnetic field due to displacement of an internal float. A positive pressure tank stores high pressure air by a compressor. A bulk cartridge is connected to one side of the magnetostrictive displacement transducer to supply ink to be charged. A negative pressure tank is connected to the ink injection hole of the ink cartridge mount hole through a vacuum tube.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: February 16, 2010
    Assignee: INKTEC Co., Ltd.
    Inventors: Kwang-Choon Chung, Chang-Soo Yu, Hae-Sung Jung, Ki-Hun Kang, Ki-Yong Kim, Jeong-Guck Lee, Chung-Il Kim
  • Publication number: 20090324739
    Abstract: The present invention relates to antibacterial composition containing silver complexes, antibacterial treatment methods using the same and antibacterial formed article, in which the antibacterial composition containing silver complexes is economical, not wearing off due to washing, cleaning, rubbing, etc., firmly combined to improve durability and antibacterial effect, and applicable to various products due to great solubility and stability.
    Type: Application
    Filed: March 14, 2007
    Publication date: December 31, 2009
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Eun-Jin Park, Young-Kwan Seo, Ju-Jin Choi, Dong-Lib Kim, Hyoung-Seok Kim
  • Publication number: 20090293209
    Abstract: A textile printing method applying inkjet printer comprises the steps for feeding a fabric by a fabric feed roller, applying a pretreatment liquid to the fabric by jetting the pretreatment liquid installed in a pretreatment liquid reservoir installed respective containers filled with individual compositions of a pretreatment liquid, so that such individual compositions are concurrently mixed and applied on the fabric surface to pretreat the fabric by operation of a control unit depending upon the fabric material through a pretreatment head, drying the pretreatment liquid applied to the fabric through a drier, and printing on the dried fabric by jetting the ink installed in a ink reservoir through the printing head. The pretreatment head, the drier and the printing head are serially arranged so that the steps for applying a pretreatment liquid, drying the pretreatment liquid and printing on the dried fabric are concurrently performed.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 3, 2009
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang-Choon CHUNG, Myoung-Seon GONG, Hoo-Shick KIM, Ju-Jin CHOI, Eun-Jin PARK, Hyoung-Seok KIM, Kyong-Min LEE
  • Publication number: 20090120800
    Abstract: 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: Application
    Filed: February 7, 2006
    Publication date: May 14, 2009
    Applicant: 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
  • Publication number: 20090073245
    Abstract: The present invention relates to an ink-cartridge for printers comprising a body formed having a filling hole on an upper surface thereof; a plurality of filling chambers inside of the body divided by a partition having a connecting hole; a discharging chamber connected to the filling chamber; an air chamber connected to the filling chamber via an air transferring channel so as to supply air to the filling chamber; an air suction valve installed in the air chamber; an air inducing channel inducing external air to the air suction valve; a blocking film attached to one surface of the body; and a cover installed in the other surface of the body; and a pressure regulating part formed in a surface of an outer wall of the body and communicating with the filling chamber.
    Type: Application
    Filed: October 25, 2006
    Publication date: March 19, 2009
    Applicant: Inktec Co., Ltd.
    Inventors: Kwang-Choon Chung, Chang-Soo Yu, Nam-Boo Cho, Young-Chul Shin, Bae-Song Heo
  • Publication number: 20080284832
    Abstract: 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: Application
    Filed: March 28, 2007
    Publication date: November 20, 2008
    Applicant: 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
  • Publication number: 20080277381
    Abstract: 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: Application
    Filed: April 5, 2006
    Publication date: November 13, 2008
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Young-Kwan Seo
  • Publication number: 20080278556
    Abstract: An ink cartridge for printers and ink filling method that can expand the space where the ink is filled, and maintain pressure inside the ink cartridge. The ink cartridge includes a body formed in a predetermined shape and having a filling hold on one surface, a filling chamber where ink is filled inside the body, a discharging chamber connected to the filling chamber, an ink discharging port connected to the discharging chamber through an ink transferring channel, an air chamber connected to the filling chamber to supply air through an air transferring channel, an air suction valve in the air chamber, an air inducing channel that induces exterior air into the air suction valve, a blocking film attached to one surface of the body, a cover installed on another surface of the body, a pressure regulating part on one surface of outer body, which communicates with the filling chamber.
    Type: Application
    Filed: March 17, 2007
    Publication date: November 13, 2008
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang-Choon Chung, Chang Soo Yu, Nam Boo Cho, Young Chul Shin, Baek Song Heo
  • Publication number: 20080262243
    Abstract: The present invention provides a novel ?-sulfonimide compound having at least one imide group and at least one sulfonyl group and a method for preparing the same.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 23, 2008
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Myoung-Seon Gong, Yun-Ho Jung
  • Publication number: 20080206488
    Abstract: The present invention relates to a variety of conductive ink compositions comprising a metal complex compound having a special structure and an additive and a method for preparing the same, more particularly to conductive ink compositions comprising a metal complex compound obtained by reacting a metal or metal compound with an ammonium carbamate- or ammonium carbonate-based compound and an additive and a method for preparing the same.
    Type: Application
    Filed: March 4, 2006
    Publication date: August 28, 2008
    Applicant: 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, Nam-Boo Cho
  • Patent number: 7374605
    Abstract: The present invention relates to an inkjet printing ink which has good color developing property and fastness and a broad color gamut in printing various textile materials such as polyesters, cottons, silks, nylons, etc., knitted materials, particularly mixed fibers so that the product value of printed fiber products including garments can be increased, a process for preparation thereof, and a printing method using said ink. Moreover, the present invention provides an ink for inkjet printing suitable for polyester ultrafine microfibers and nylon/polyester ultrafine microfibers.
    Type: Grant
    Filed: March 6, 2004
    Date of Patent: May 20, 2008
    Assignee: Inktec Co.Ltd
    Inventors: Kwang Choon Chung, Myoung Seon Gong, Hoo Shick Kim, Byung Hoon Im
  • Publication number: 20030114201
    Abstract: An over-the-ear type headset having a hanger capable of being selectively bent and positioned to afford easy and comfortable wearing regardless of a size and a shape of the ear, and an end-cap having a bulging portion adapted to rest on a recess region below a user's ear to assure stable support of the headset is disclosed. The headset includes a headset body containing an earphone and a microphone, and a hanger coupled to the headset body, which is adapted to be bent along a back of a user's ear.
    Type: Application
    Filed: January 3, 2002
    Publication date: June 19, 2003
    Applicant: INKTEC CO., LTD.
    Inventors: Kwang Chun Chung, Nam Chul Lee, Jeong Hyeong Cho, Byung Yong Song, Seong Kang, Hyeong Hu Kim