Patents by Inventor Kyu-hwan Park
Kyu-hwan Park 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: 20240318013Abstract: A highly heat-resistance and flame-retardant polymer composite composition for cable covering includes a polyolefin-based resin composition, a calcium-based flame retardant, 1% to 10% by weight of a non-halogen-based flame retardant, and a crosslinking agent. The composition exhibits excellent flame retardancy and heat resistance, has excellent flexibility, oil resistance, and processability due to low hardness, and has particularly improved mechanical properties through a special combination of various organic and inorganic materials.Type: ApplicationFiled: August 9, 2021Publication date: September 26, 2024Inventors: KYU-HWAN PARK, WAN JO, DONG-HAK KIM, JONG-HYUCK KIM
-
Publication number: 20240140798Abstract: Provided is a method for preparing silicon nitride powder for manufacturing a substrate. The method for preparing silicon nitride powder for manufacturing a substrate, according to an embodiment of the present invention, comprises the steps of: preparing mixed raw material powder comprising metallic silicon powder and crystalline phase control powder; preparing the mixed raw material powder into granules having a predetermined particle size; nitrifying the granules at a predetermined temperature ranging from 1,200-1,500° C. while nitrogen gas is applied to the granules at a predetermined pressure; and pulverizing the nitrified granules. According to the method, it is easy to realize powder having an ? crystal phase at a desired level, and when this is realized as a substrate, a substrate having compact density can be manufactured.Type: ApplicationFiled: March 18, 2022Publication date: May 2, 2024Inventors: Kyu Hwan PARK, Hun CHEONG
-
Publication number: 20240116822Abstract: A method for manufacturing a silicon nitride substrate is provided. The method comprises the steps of: preparing a ceramic composition containing a metal silicon powder and a crystalline phase control powder containing a rare earth element-containing compound and a magnesium-containing compound; manufacturing a sheet-shaped molded body of a slurry prepared by mixing a solvent and an organic binder with the ceramic composition; and performing heat treatment including a nitrification section where heat treatment is performed at a first temperature in the range of 1300-1500° C. together with the application of nitrogen gas to the molded body at a predetermined pressure and a sintering section where heat treatment is performed at a second temperature in the range of 1700-1900° C.Type: ApplicationFiled: May 3, 2022Publication date: April 11, 2024Applicant: AMOTECH CO., LTD.Inventors: Kyu Hwan PARK, Hun CHEONG
-
Patent number: 11177070Abstract: Provided are an electric shock protection device and method of manufacturing the same. The electric shock protection device may include a capacitor unit comprising multiple sheet layers and multiple capacitor electrodes provided on the sheet layers and has an electric shock prevention function and a communication signal transmission function; a pair of soldering electrodes formed on the sheet layer disposed at an outermost side among the sheet layers, extend from both ends toward a center of the capacitor unit, and are formed as electrodes for co-firing; a pair of terminal electrodes provided at both ends of the sheet layers and connecting the capacitor electrodes to the pair of soldering electrodes; a varistor connected to the pair of soldering electrodes through solders and formed as a single component; and a molding portion molded on the varistor, the pair of soldering electrodes, and one side of each of the terminal electrodes.Type: GrantFiled: March 26, 2018Date of Patent: November 16, 2021Inventors: Kyu Hwan Park, Jun Suh Yu
-
Patent number: 10635138Abstract: Provided is an electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of an electronic device. The electric shock protection device includes: a sintered body where a plurality of sheet layers stacked; an electric shock protection unit including at least one pair of inner electrodes disposed spaced a predetermined interval apart from each other inside the sintered body and a pore disposed between the inner electrodes; and at least one capacitor layer configured to pass communication signals flowing from the conductor.Type: GrantFiled: May 25, 2017Date of Patent: April 28, 2020Assignee: AMOTECH CO., LTD.Inventors: Tong Gi Kim, Jun-Suh Yu, Kyu Hwan Park, Gui Nam Sun, Jae Su Ryu, Seung Chul Lee
-
Patent number: 10631448Abstract: Provided is a portable electronic device with an embedded electric shock protection function. A portable electronic device with an embedded electric shock protection function according to an exemplary embodiment of the present invention comprises: a circuit board; a camera module mounted on the circuit board; a conductive cover disposed to cover a part of an upper side of the camera module; a conductive connecting part mounted on the circuit board and configured to come into electrical contact with the conductive cover; and an electric shock protection element mounted on the circuit board to be connected in series to the conductive connecting part and configured to pass static electricity introduced from the conductive cover and block a leakage current of an external power source introduced into a ground of the circuit board.Type: GrantFiled: January 29, 2016Date of Patent: April 21, 2020Assignee: AMOTECH CO., LTD.Inventors: Jae Su Ryu, Byung Guk Lim, Kyu Hwan Park, Jun-Suh Yu
-
Publication number: 20200111611Abstract: Provided are an electric shock protection device and method of manufacturing the same. The electric shock protection device may include a capacitor unit comprising multiple sheet layers and multiple capacitor electrodes provided on the sheet layers and has an electric shock prevention function and a communication signal transmission function; a pair of soldering electrodes formed on the sheet layer disposed at an outermost side among the sheet layers, extend from both ends toward a center of the capacitor unit, and are formed as electrodes for co-firing; a pair of terminal electrodes which are provided at both ends of the plurality of sheet layers and connecting the capacitor electrodes to the pair of soldering electrodes; a varistor connected to the pair of soldering electrodes through solders and formed as a single component; and a molding portion molded on the varistor, the pair of soldering electrodes, and one side of each of the terminal electrodes.Type: ApplicationFiled: March 26, 2018Publication date: April 9, 2020Applicant: AMOTECH CO., LTD.Inventors: Kyu Hwan PARK, Jun Suh YU
-
Patent number: 10222838Abstract: Provided is an electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of an electronic device, wherein in order to pass static electricity without causing dielectric breakdown when the static electricity flows from the conductor, block a leakage current of an external power source flowing from a ground of the circuit unit, and pass communication signals flowing from the conductor, the following equation is satisfied: Vbr>Vin where Vbr is a breakdown voltage of the electric shock protection device and Vin is a rated voltage of an external power source of the electronic device.Type: GrantFiled: October 16, 2015Date of Patent: March 5, 2019Assignee: AMOTECH CO., LTD.Inventors: Tong Gi Kim, Jun-Suh Yu, Kyu Hwan Park, Gui Nam Sun, Jae Su Ryu, Byung Guk Lim, Rieon Kim
-
Patent number: 10175727Abstract: Provided are an electric shock protection device and a mobile electronic apparatus including the same. The electric shock protection device is disposed between a human contactable conductor and an internal circuit unit of an electronic device, in order to pass static electricity without causing dielectric breakdown when the static electricity is introduced from the conductor, and block a leakage electric current of an external power source introduced from a ground of the circuit unit, the following formula is satisfied: Vbr>Vin where Vbr is a breakdown voltage of the electric shock protection device, and Vin is a rated voltage of an external power source of the electronic device.Type: GrantFiled: October 16, 2015Date of Patent: January 8, 2019Assignee: AMOTECH CO., LTD.Inventors: Jun-Suh Yu, Kyu Hwan Park, Tong Gi Kim, Gui Nam Sun, Jae Su Ryu, Byung Guk Lim, Rieon Kim
-
Publication number: 20180007817Abstract: Provided is a portable electronic device with an embedded electric shock protection function. A portable electronic device with an embedded electric shock protection function according to an exemplary embodiment of the present invention comprises: a circuit board; a camera module mounted on the circuit board; a conductive cover disposed to cover a part of an upper side of the camera module; a conductive connecting part mounted on the circuit board and configured to come into electrical contact with the conductive cover; and an electric shock protection element mounted on the circuit board to be connected in series to the conductive connecting part and configured to pass static electricity introduced from the conductive cover and block a leakage current of an external power source introduced into a ground of the circuit board.Type: ApplicationFiled: January 29, 2016Publication date: January 4, 2018Inventors: Jae Su Ryu, Byung Guk Lim, Kyu Hwan Park, Jun-Suh Yu
-
Publication number: 20170262024Abstract: Provided is an electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of an electronic device. The electric shock protection device includes: a sintered body where a plurality of sheet layers stacked; an electric shock protection unit including at least one pair of inner electrodes disposed spaced a predetermined interval apart from each other inside the sintered body and a pore disposed between the inner electrodes; and at least one capacitor layer configured to pass communication signals flowing from the conductor.Type: ApplicationFiled: May 25, 2017Publication date: September 14, 2017Inventors: Tong Gi Kim, Jun-Suh Yu, Kyu Hwan Park, Gui Nam Sun, Jae Su Ryu, Seung Chul Lee
-
Patent number: 9703326Abstract: Provided is an electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of an electronic device. The electric shock protection device includes: a sintered body where a plurality of sheet layers stacked; an electric shock protection unit including at least one pair of inner electrodes disposed spaced a predetermined interval apart from each other inside the sintered body and a pore disposed between the inner electrodes; and at least one capacitor layer configured to pass communication signals flowing from the conductor.Type: GrantFiled: October 16, 2015Date of Patent: July 11, 2017Assignee: AMOTECH CO., LTD.Inventors: Tong Gi Kim, Jun-Suh Yu, Kyu Hwan Park, Gui Nam Sun, Jae Su Ryu, Seung Chul Lee
-
Publication number: 20170003873Abstract: Provided are a method of controlling a mobile device having an improved user's convenience of inputting, a recording medium storing a program for executing the method, an application distribution server, and a mobile device. The method includes displaying character arrangement window on an edge of a display area, and when a touch has occurred on a portion, on which the character arrangement window is not displayed, in the display area, regarding the touch as an event that a character corresponding to the touch, from among characters included in the character arrangement window, is input.Type: ApplicationFiled: June 30, 2014Publication date: January 5, 2017Applicant: REALVALUE CO., LTD.Inventors: Kyu Hwan Park, Hyo Soo Kim, Ji Sun Bai
-
Publication number: 20160149397Abstract: Provided is an electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of an electronic device. The electric shock protection device includes: a sintered body where a plurality of sheet layers stacked; an electric shock protection unit including at least one pair of inner electrodes disposed spaced a predetermined interval apart from each other inside the sintered body and a pore disposed between the inner electrodes; and at least one capacitor layer configured to pass communication signals flowing from the conductor.Type: ApplicationFiled: October 16, 2015Publication date: May 26, 2016Inventors: Tong Gi Kim, Jun-Suh Yu, Kyu Hwan Park, Gui Nam Sun, Jae Su Ryu, Seung Chul Lee
-
Publication number: 20160149399Abstract: Provided are an electric shock protection device and a mobile electronic apparatus including the same. The electric shock protection device is disposed between a human contactable conductor and an internal circuit unit of an electronic device, in order to pass static electricity without causing dielectric breakdown when the static electricity is introduced from the conductor, and block a leakage electric current of an external power source introduced from a ground of the circuit unit, the following formula is satisfied: Vbr>Vin where Vbr is a breakdown voltage of the electric shock protection device, and Vin is a rated voltage of an external power source of the electronic device.Type: ApplicationFiled: October 16, 2015Publication date: May 26, 2016Inventors: Jun-Suh Yu, Kyu Hwan Park, Tong Gi Kim, Gui Nam Sun, Jae Su Ryu, Byung Guk Lim, Rieon Kim
-
Publication number: 20160149398Abstract: Provided is an electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of an electronic device, wherein in order to pass static electricity without causing dielectric breakdown when the static electricity flows from the conductor, block a leakage current of an external power source flowing from a ground of the circuit unit, and pass communication signals flowing from the conductor, the following equation is satisfied: Vbr>Vin where Vbr is a breakdown voltage of the electric shock protection device and Vin is a rated voltage of an external power source of the electronic device.Type: ApplicationFiled: October 16, 2015Publication date: May 26, 2016Inventors: Tong Gi Kim, Jun-Suh Yu, Kyu Hwan Park, Gui Nam Sun, Jae Su Ryu, Byung Guk Lim, Rieon Kim
-
Patent number: 8518712Abstract: A method for discovering pharmacologically active substances from natural products at high speed, including: obtaining an activity profile by testing pharmacological activity of a plurality of samples; obtaining mass profiles based on mass spectra resulting from analysis of the samples by mass spectrometry; and determining molecular weight of pharmacologically active substances by comparing and analyzing the activity profile and the mass profile. The method allows fast discovery of pharmacologically active substances by performing high resolution mass spectrometry for numerous components included in an extract sample of natural products and comparing with the activity test data. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products.Type: GrantFiled: June 29, 2012Date of Patent: August 27, 2013Assignee: Korea Basic Science InstituteInventors: Kyu Hwan Park, Hyun Sik Kim, Kyung Hoon Kwon, Jong Shin Yoo
-
Publication number: 20120322160Abstract: A method for discovering pharmacologically active substances from natural products at high speed, including: obtaining an activity profile by testing pharmacological activity of a plurality of samples; obtaining mass profiles based on mass spectra resulting from analysis of the samples by mass spectrometry; and determining molecular weight of pharmacologically active substances by comparing and analyzing the activity profile and the mass profile. The method allows fast discovery of pharmacologically active substances by performing high resolution mass spectrometry for numerous components included in an extract sample of natural products and comparing with the activity test data. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products.Type: ApplicationFiled: June 29, 2012Publication date: December 20, 2012Inventors: Kyu Hwan Park, Hyun Sik Kim, Kyung Hoon Kwon, Jong Shin Yoo
-
Publication number: 20100107414Abstract: The present invention provides a method of manufacturing a grating. The method of the present invention includes fitting a plastic deformable lateral member (2) having a hollow pipe shape into coupling holes (10) formed through respective longitudinal members (4) in a lateral direction of the longitudinal members; holding the lateral member and the longitudinal members; and passing a forming weight (12) through the lateral member (2) from a first end of the lateral member to a second end thereof using a relatively large external force. Here, the forming weight has a predetermined size suitable for passing through the lateral member to expand the cross-sectional area of the lateral member such that the lateral member is plastic-deformed.Type: ApplicationFiled: April 24, 2008Publication date: May 6, 2010Applicant: ALUMINIUM PLAZA CO., LTD.Inventor: Kyu-hwan Park