Patents by Inventor Kee Ryu
Kee Ryu 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).
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Patent number: 9772660Abstract: The present invention relates to a tablet capable of sensing a location using electromagnetic induction and electrostatic capacitance.Type: GrantFiled: July 2, 2014Date of Patent: September 26, 2017Assignee: THE HAN INC.Inventor: Young Kee Ryu
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Publication number: 20170123569Abstract: A multi-input pad for simultaneously sensing a capacitive touch and an induced electromagnetic field input includes a plurality of first patterns extending in a first direction in a sensing area, a plurality of second patterns extending in a second direction in the sensing area, a plurality of third patterns extending in the second direction in the sensing area, and a common loop surrounding at least a part of the sensing area and to which the other ends of the third patterns are connected. The multi-input pad operating in a capacitive touch sensing mode and an induced electromagnetic field sensing mode may simultaneously sense a capacitive touch and an induced electromagnetic field input.Type: ApplicationFiled: June 4, 2015Publication date: May 4, 2017Inventors: Sae Young KIM, Sang Sup AHN, Young Kee RYU
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Publication number: 20160179134Abstract: The present invention relates to a tablet capable of sensing a location using electromagnetic induction and electrostatic capacitance.Type: ApplicationFiled: July 2, 2014Publication date: June 23, 2016Applicant: THE HAN INC.Inventor: Young Kee RYU
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Patent number: 9256339Abstract: The present invention relates to a tablet having a flexible and transparent sensing area, comprising: an insulating transparent base material having a first loop antenna and a plurality of comb-shaped first line antennas; and a control substrate having, mounted thereon, a first multiplexer (MUX) for selecting one of the ends of the plurality of first line antennas, an amplifier for outputting a potential difference between an output of the first multiplexer and the first loop antenna, and an MCU (micro controller unit) for generating a first selection signal and, on the basis of the potential difference from the amplifier, sensing the position of an electronic pen from one line antenna. The first loop antenna formed on the transparent base material is combined with a first conductive pattern formed on the control substrate, thereby forming a closed loop.Type: GrantFiled: February 20, 2013Date of Patent: February 9, 2016Assignee: THE HAN INC.Inventor: Young Kee Ryu
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Publication number: 20150009623Abstract: The present invention relates to a tablet having a flexible and transparent sensing area, comprising: an insulating transparent base material having a first loop antenna and a plurality of comb-shaped first line antennas; and a control substrate having, mounted thereon, a first multiplexer (MUX) for selecting one of the ends of the plurality of first line antennas, an amplifier for outputting a potential difference between an output of the first multiplexer and the first loop antenna, and an MCU (micro controller unit) for generating a first selection signal and, on the basis of the potential difference from the amplifier, sensing the position of an electronic pen from one line antenna. The first loop antenna formed on the transparent base material is combined with a first conductive pattern formed on the control substrate, thereby forming a closed loop.Type: ApplicationFiled: February 20, 2013Publication date: January 8, 2015Inventor: Young Kee Ryu
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Patent number: 8431080Abstract: A microscale polymer-based apparatus comprises a substrate formed from a first polymer material and at least one active region integrated with the substrate. The at least one active region is patterned from a second polymer material that is modified to perform at least one function within the at least one active region.Type: GrantFiled: June 1, 2007Date of Patent: April 30, 2013Assignee: The Board of Trustees of the University of IllinoisInventors: Chang Liu, Jonathan Engel, Kee Ryu
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Patent number: 7838321Abstract: This describes a starting structure and method for forming a micro-mechanical device. These devices have several uses in both government and commercial applications. The starting structure can be sold or supplied to others who will then make a final product, or it can be used directly to make a final product. An appropriate use of this starting structure is to make deformable devices useful in an inkjet printing device.Type: GrantFiled: December 20, 2005Date of Patent: November 23, 2010Assignee: Xerox CorporationInventors: Peter J. Nystrom, Nancy Jia, Kee Ryu
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Patent number: 7737045Abstract: A fluid delivery system including a first substrate having a micro-channel and a well both formed through the first substrate. The fluid delivery system also includes a second substrate and a delivery channel. The second substrate is on the first substrate and the delivery channel is formed between the first and second substrates. The delivery channel provides fluid communication between the micro-channel and the well.Type: GrantFiled: March 6, 2007Date of Patent: June 15, 2010Assignee: The Board of Trustees of the University of IllinoisInventors: Chang Liu, Kee Ryu, David Bullen
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Publication number: 20100072565Abstract: A microscale polymer-based apparatus comprises a substrate formed from a first polymer material and at least one active region integrated with the substrate. The at least one active region is patterned from a second polymer material that is modified to perform at least one function within the at least one active region.Type: ApplicationFiled: June 1, 2007Publication date: March 25, 2010Inventors: Chang Liu, Jonathan Engel, Kee Ryu
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Patent number: 7351303Abstract: Microfluidic systems and components. A microfluidic system includes one or more functional units or microfluidic chips, configured to perform constituent steps in a process and interconnected to form the system. A multi-layer microfluidic system includes a separate dedicated fluid layer and dedicated electromechanical layer connected via through-holes. Electromechanical components are formed on the electromechanical layer.Type: GrantFiled: October 9, 2003Date of Patent: April 1, 2008Assignee: The Board of Trustees of the University of IllinoisInventors: Chang Liu, Kashan Shaikh, Kee Ryu, Edgar Goluch, Zhifang Fan, David Bullen
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Publication number: 20080017306Abstract: Microfluidic systems and components. A microfluidic system includes one or more functional units or microfluidic chips, configured to perform constituent steps in a process and interconnected to form the system. A multi-layer microfluidic system includes a separate dedicated fluid layer and dedicated electromechanical layer connected via through-holes. Electromechanical components are formed on the electromechanical layer.Type: ApplicationFiled: October 9, 2003Publication date: January 24, 2008Inventors: Chang Liu, Kashan Shaikh, Kee Ryu, Edgar Goluch, Zhifang Fan, David Bullen
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Publication number: 20070163647Abstract: A fluid delivery system including a first substrate having a micro-channel and a well both formed through the first substrate. The fluid delivery system also includes a second substrate and a delivery channel. The second substrate is on the first substrate and the delivery channel is formed between the first and second substrates. The delivery channel provides fluid communication between the micro-channel and the well.Type: ApplicationFiled: March 6, 2007Publication date: July 19, 2007Inventors: Chang Liu, Kee Ryu, David Bullen
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Publication number: 20070138582Abstract: This describes a starting structure and method for forming a micro-mechanical device. These devices have several uses in both government and commercial applications. The starting structure can be sold or supplied to others who will then make a final product, or it can be used directly to make a final product. An appropriate use of this starting structure is to make deformable devices useful in an inkjet printing device.Type: ApplicationFiled: December 20, 2005Publication date: June 21, 2007Inventors: Peter Nystrom, Nancy Jia, Kee Ryu
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Patent number: 7217396Abstract: A fluid delivery system including a first substrate having a micro-channel and a well both formed through the first substrate. The fluid delivery system also includes a second substrate and a delivery channel. The second substrate is on the first substrate and the delivery channel is formed between the first and second substrates. The delivery channel provides fluid communication between the micro-channel and the well.Type: GrantFiled: May 5, 2003Date of Patent: May 15, 2007Assignee: The Board of Trustees of the University of IllinoisInventors: Chang Liu, Kee Ryu, David Bullen
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Publication number: 20040223886Abstract: A fluid delivery system including a first substrate having a micro-channel and a well both formed through the first substrate. The fluid delivery system also includes a second substrate and a delivery channel. The second substrate is on the first substrate and the delivery channel is formed between the first and second substrates. The delivery channel provides fluid communication between the micro-channel and the well.Type: ApplicationFiled: May 5, 2003Publication date: November 11, 2004Inventors: Chang Liu, Kee Ryu, David Bullen
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Publication number: 20020018252Abstract: The contact imaging system allows the contact area of an object impressed upon the surface of the contact imaging system to emit light in a pattern corresponding to the contact area making it possible to render an image of the contact area. The contact imaging system has a luminescence layer on top of a transparent electrode. When the object to be imaged contacts the luminescence layer and is held at ground potential relative to the transparent electrode, an electric field is created in the luminescence layer in a pattern corresponding to the contact pattern. The electric field causes the luminescence layer to emit a light image of the contact pattern. The luminescence layer and the transparent electrode are adjacent to a light sensing layer. The light sensing layer receives the light generated at the luminescence layer, and converts that light into a corresponding electric signal.Type: ApplicationFiled: September 28, 2001Publication date: February 14, 2002Applicant: Mirae CorporationInventors: Ju Hyun Lee, Vladimir Vlaskin, Young Kee Ryu
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Patent number: 6326644Abstract: A contact light emitting device embodying the invention includes a transparent electrode layer and a luminescence layer. The electrode layer and the luminescence layer are configured such that an electric field can be generated between the electrode layer and an object to be imaged. When the object to be imaged is brought adjacent the luminescence layer, the luminescence layer emits light, which is then converted into an electrical signal.Type: GrantFiled: May 14, 1999Date of Patent: December 4, 2001Assignee: Mirae CorporationInventors: Ju Hyun Lee, Vladimir Vlaskin, Young Kee Ryu