Patents by Inventor Tae-Song Kim

Tae-Song Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030134156
    Abstract: A method for manufacturing a high density piezoelectric thick film includes the steps of: mixing and dispersing piezoelectric material powder and a sol in a vehicle made of an organic binder and solvent, to fabricate a paste; printing the paste to a thickness of 5-100 micron on a substrate by a screen printing, to form a thick film; drying the thick film, and thermally treating the thick film.
    Type: Application
    Filed: May 23, 2002
    Publication date: July 17, 2003
    Inventors: Tae Song Kim, Yong Bum Kim, Chae Il Cheon
  • Publication number: 20030092973
    Abstract: 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.
    Type: Application
    Filed: May 30, 2002
    Publication date: May 15, 2003
    Applicant: Korea Institute of Science and Technology
    Inventors: Tae-Song Kim, Jong-Oh Park, Sung-Wook Moon, Byung Kyu Kim, Kyung Hwan Kim, Ji-Yoon Kang, Han Jung
  • Publication number: 20030032293
    Abstract: A high-sensitive micro cantilever sensor and a method for fabricating the same which is able to reduce size of a system greatly using a functional thin film has a structure in which an upper substrate comprising one or two piezoelectric cells including a cantilever, a piezoelectric layer formed on lower or upper surface of the cantilever, and electrodes formed on upper and lower surfaces of the piezoelectric layer is attached to a lower substrate including a cavity of an even depth by contacting the lower surface of the piezoelectric cell on the upper substrate with the cavity surface of the lower substrate.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 13, 2003
    Applicant: Korean Institute of Science And Technology
    Inventors: Tae-Song Kim, Hyung-Joon Kim, Yong-Bum Kim
  • Publication number: 20020171182
    Abstract: A high density ceramic thick film is fabricated by providing vehicle comprising an organic binder and solvent, dispersing ceramic powders into the vehicle to be paste, forming the paste to thick film by screen printing, removing the organic binder from the film, applying sol or sol-like solution to the surface of the film so that the sol or sol-like solution can infiltrate into the film, removing remaining sol or sol-like solution from the surface of the film, drying and preheating the film, and sintering the film.
    Type: Application
    Filed: April 4, 2002
    Publication date: November 21, 2002
    Inventors: Tae-Song Kim, Yong-Bum Kim, Hyung-Jin Jung
  • Patent number: 6113859
    Abstract: A plate-type NO.sub.x gas sensor having a WO.sub.3 sensing film which are capable of preventing temperature variation of a sensing thin film depending on gas flow to decrease heat loss thereof, whereby extending the life span of batteries of a portable gas sensor. The plate-type NO.sub.x gas sensor includes a Pt thin film electrode formed on a front surface of an alumina substrate, a tungsten oxide thin film for sensing NO.sub.x gas deposited on the front surface of the substrate on which the Pt thin film electrode is formed, a heater formed on a back surface of the alumina substrate for holding a portion of the tungsten oxide thin film for sensing NO.sub.x gas within a predetermined temperature range, a conducting wire for connecting between the Pt thin film electrode and the heater and a sheet made of at least one material selected from a group composed of Al.sub.2 O.sub.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: September 5, 2000
    Assignee: Korea Institute of Science and Technology
    Inventors: Tae Song Kim, Hyung Jin Jung, Chong Hak Jung
  • Patent number: 5820946
    Abstract: A PZT ferroelectric thin film is sputter deposited on an electrode without microcracks while avoiding oxygen and Pb ion deficiencies at the electrode interface by initially forming a buffer layer containing a sufficient amount of a volatile Pb component and a sufficient amount of oxygen to easily absorb the energy of sputter particles. The PZT ferroelectric thin film can also be deposited by laser ablation.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: October 13, 1998
    Assignee: Korea Institute of Science and Technology
    Inventors: Tae Song Kim, Joon Han Kim, Dong Heon Lee, Jeon-Kook Lee, Hyung Jin Jung
  • Patent number: 5796079
    Abstract: A rapid thermal processing method for a ceramic thin film which is capable of carrying out a uniform heating of a large sized wafer, and of achieving a rapid temperature elevation, and of enhancing a crystallinity of a deposited thin film, wherein a thin film-coated material is disposed on a support to rapidly heat the thin film by the application of microwaves, the temperature is measured with a temperature measuring unit, and the generation of the microwaves is halted at a required temperature.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: August 18, 1998
    Assignee: Korea Institute of Science and Technology
    Inventors: Tae Song Kim, Hyung Jin Jung, Do Kyung Kim, Yoon Chang Kim