Patents by Inventor Hyung Man Lee
Hyung Man Lee 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: 9882337Abstract: The present invention relates to a method for manufacturing a laser module, and a laser module package, and the method for manufacturing a laser module. Rapidity, accuracy and high reliability of the manufactured module can be obtained by aligning precisely using an automated equipment, and fixing components through laser welding.Type: GrantFiled: February 11, 2015Date of Patent: January 30, 2018Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Hyung Man Lee, Soon Seob Park
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Publication number: 20160329676Abstract: The present invention relates to a method for manufacturing a laser module, and a laser module package, and the method for manufacturing a laser module. Rapidity, accuracy and high reliability of the manufactured module can be obtained by aligning precisely using an automated equipment, and fixing components through laser welding.Type: ApplicationFiled: February 11, 2015Publication date: November 10, 2016Inventors: Hyung Man LEE, Soon Seob PARK
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Publication number: 20150280041Abstract: The present invention relates to a concentrated photovoltaic module and, more particularly, to a concentrated photovoltaic module that is capable of efficiently dissipating the heat generated in a solar cell to the atmosphere. The concentrated photovoltaic module according to the present invention includes: a concentrated lens array module having at least one condenser lens; a solar cell positioned at the lower end of the condenser lens; a substrate positioned at the lower end of the solar cell and supplied with the heat generated in the solar cell; a flat plate-type heat pipe positioned at the lower end of the substrate; a flat plate-type heat sink positioned at the lower end of the flat plate-type heat pipe; and a condenser lens array structure fixing the condenser lens array module to the substrate.Type: ApplicationFiled: September 17, 2013Publication date: October 1, 2015Applicants: KOREA ELECTRONICS TECHNOLOGY INSTITUTE, ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyung Man Lee, Seok Hwan Moon
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Patent number: 8098422Abstract: A nonlinear optical device is provided. More specifically, a wavelength conversion device package with less optical loss stabilizes optical alignment under an external environmental change, for example, in a temperature variation by providing a temperature regulating block and a temperature sensor to an optical oscillator and a wavelength modulator and fixing a flexible optical transmitter to the optical oscillator and the wavelength modulator. The wavelength conversion device package includes an optical oscillator comprising a light source for emitting a light; a flexible optical transmitter for transferring the light emitted from the optical oscillator to a wavelength modulator; and the wavelength modulator for receiving the light from the optical transmitter and radiating a wavelength-modulated light.Type: GrantFiled: May 27, 2009Date of Patent: January 17, 2012Assignee: Korea Electronics Technology InstituteInventors: Hyung Man Lee, Han Young Lee, Woo Seok Yang, Woo Kyung Kim
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Patent number: 7863569Abstract: The present invention relates to an apparatus for analyzing cells in real-time which incorporates a wavelength-tunable light source/infrared ray (IR) sensor and can be used to observe and analyze the IR-related characteristics of adherent cells or non-adherent cells. The Apparatus for analyzing cells in real-time in accordance with the present invention can be used to quantify specific materials in a cell and measure the metabolism of a cell. In addition, the apparatus for analyzing cells in real-time in accordance with the present invention can be configured to have a visible light microscope coupled thereto, and in this configuration, it can be used to locate a cell of interest.Type: GrantFiled: July 7, 2008Date of Patent: January 4, 2011Assignee: Korea Electronics Technology InstituteInventors: Sung Min Hong, Soon Sup Park, Yeon Hwa Kwak, Yeon Shik Choi, Han Young Lee, Hyung Man Lee
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Patent number: 7864409Abstract: The present invention relates to a fabrication method for a quasi-phase-matched waveguide. The method includes the steps of forming a metal etch mask on a ferroelectric single crystal substrate, etching the substrate by using the etch mask, removing the etch mask, forming conductive layers on the etched substrate, forming polarization regions by applying an electric field to the conductive layers, and flattening the substrate after removing the conductive layers. Accordingly, the present invention is advantageous in that it can be applied to various fields employing a ferroelectric substrate, such as LiNbO3, LiTaO3, Mg:LiNbO3 or Zn:LiNbO3, it can obtain more accurate and uniform periodic domain inversion devices with a high quality and can fabricate devices that are cheaper and have a better performance.Type: GrantFiled: September 26, 2007Date of Patent: January 4, 2011Assignee: Korea Electronics Technology InstituteInventors: Woo Seok Yang, Han Young Lee, Hyung Man Lee, Woo Kyung Kim, Soon Sup Park
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Publication number: 20100073761Abstract: A nonlinear optical device is provided. More specifically, a wavelength conversion device package with less optical loss stabilizes optical alignment under an external environmental change, for example, in a temperature variation by providing a temperature regulating block and a temperature sensor to an optical oscillator and a wavelength modulator and fixing a flexible optical transmitter to the optical oscillator and the wavelength modulator. The wavelength conversion device package includes an optical oscillator comprising a light source for emitting a light; a flexible optical transmitter for transferring the light emitted from the optical oscillator to a wavelength modulator; and the wavelength modulator for receiving the light from the optical transmitter and radiating a wavelength-modulated light.Type: ApplicationFiled: May 27, 2009Publication date: March 25, 2010Inventors: HYUNG MAN LEE, HAN YOUNG LEE, WOO SEOK YANG, WOO KYUNG KIM
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Publication number: 20090008559Abstract: The present invention relates to an apparatus for analyzing cells in real-time which incorporates a wavelength-tunable light source/infrared ray (IR) sensor and can be used to observe and analyze the IR-related characteristics of adherent cells or non-adherent cells. The Apparatus for analyzing cells in real-time in accordance with the present invention can be used to quantify specific materials in a cell and measure the metabolism of a cell. In addition, the apparatus for analyzing cells in real-time in accordance with the present invention can be configured to have a visible light microscope coupled thereto, and in this configuration, it can be used to locate a cell of interest.Type: ApplicationFiled: July 7, 2008Publication date: January 8, 2009Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Sung Min Hong, Soon Sup Park, Yeon Hwa Kwak, Yeon Shik Choi, Han Young Lee, Hyung Man Lee
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Patent number: 7440642Abstract: An integrated optical modulator and method for manufacturing thereof are disclosed. The integrated optical modulator comprises a carrier wave band modulator using a double sideband modulation method and an intermediate frequency band modulator using a single sideband modulation method. The carrier wave band modulator and the intermediate frequency band modulator are connected in series. A method for manufacturing an integrated optical modulator comprises preparing a substrate having at least one polarization reversed section, forming a first optical waveguide part and a second optical waveguide part on the substrate, forming a buffer layer over the first and second optical waveguide parts, forming sequentially a first electrode part and a second electrode part over the first optical waveguide part, and forming a third electrode part over the second optical waveguide part.Type: GrantFiled: December 15, 2005Date of Patent: October 21, 2008Assignee: Korea Electronics Technology InstituteInventors: Woo Kyung Kim, Woo Seok Yang, Han Young Lee, Hyung Man Lee
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Publication number: 20080087632Abstract: The present invention relates to a fabrication method for a quasi-phase-matched waveguide. The method includes the steps of forming a metal etch mask on a ferroelectric single crystal substrate, etching the substrate by using the etch mask, removing the etch mask, forming conductive layers on the etched substrate, forming polarization regions by applying an electric field to the conductive layers, and flattening the substrate after removing the conductive layers. Accordingly, the present invention is advantageous in that it can be applied to various fields employing a ferroelectric substrate, such as LiNbO3, LiTaO3, Mg:LiNbO3 or Zn:LiNbO3, it can obtain more accurate and uniform periodic domain inversion devices with a high quality and can fabricate devices that are cheaper and have a better performance.Type: ApplicationFiled: September 26, 2007Publication date: April 17, 2008Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Woo Seok Yang, Han Young Lee, Hyung Man Lee, Woo Kyung Kim, Soon Sup Park
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Patent number: 6909825Abstract: The present invention relates to a method of packaging optical parts for optical communication. According to the method of the present invention, there are advantages in that a packaging process for optical parts is automated to improve productivity and to obtain price competitiveness and uniformity of quality, and a high frequency heater for locally transferring heat to only a solder preform is used to minimize thermal deformation of areas except a soldering area, thereby achieving highly reliable packaging of the optical parts.Type: GrantFiled: July 15, 2003Date of Patent: June 21, 2005Assignee: Korea Electronics Technology InstituteInventors: Hyung Man Lee, Young Min Im, Myung Jin Kim, Hwe Kyung Kim, Young Il Kim
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Publication number: 20040013363Abstract: The present invention relates to a method of packaging optical parts for optical communication. According to the method of the present invention, there are advantages in that a packaging process for optical parts is automated to improve productivity and to obtain price competitiveness and uniformity of quality, and a high frequency heater for locally transferring heat to only a solder preform is used to minimize thermal deformation of areas except a soldering area, thereby achieving highly reliable packaging of the optical parts.Type: ApplicationFiled: July 15, 2003Publication date: January 22, 2004Applicant: Korea Electronics Technology InstituteInventors: Hyung Man Lee, Young Min Im, Myung Jin Kim, Hwe Kyung Kim, Young-Il Kim