Patents by Inventor Hyoung-jun Park
Hyoung-jun 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).
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Publication number: 20240100629Abstract: The present disclosure discloses a substrate heat-treating apparatus including a process chamber in which a flat substrate to be heat treated is placed, the process chamber comprising a beam transmitting plate placed below the flat substrate and an infrared transmitting plate placed above the flat substrate; a beam irradiating module for irradiating a VCSEL beam having a single wavelength to a lower surface of the flat substrate through the beam transmitting plate; and an temperature measuring module configured to measure the laser beam reflected from the lower surface or an upper surface the flat substrate, thereby measuring the temperature of the flat substrate.Type: ApplicationFiled: December 29, 2021Publication date: March 28, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Tae Hyeong Kim, Ju Mi Lee, Byeong Gyu Jeong
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Patent number: 11920043Abstract: The present invention relates to a method of manufacturing non-sintered liquid metal ink, and more particularly, to a method of manufacturing liquid metal ink manufactured without a sintering process. The method of manufacturing liquid metal ink according to an embodiment of the present invention includes: (a) inputting a solvent into liquid metal in a container at room temperature; (b) performing oxide film-removing treatment on the liquid metal of step (a); and (c) dispersing the liquid metal that has undergone step (b) in a form of nanoparticles through ultrasonic treatment.Type: GrantFiled: December 24, 2021Date of Patent: March 5, 2024Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyoung Soo Kim, Kwang Seok Park, Jeong Su Pyeon, Hye Jun Jeon
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Publication number: 20240071787Abstract: The present disclosure discloses a substrate heat-treating apparatus including a process chamber in which a flat substrate to be heat treated is placed, the process chamber comprising a beam transmitting plate placed below the flat substrate and an infrared transmitting plate placed above the flat substrate; a beam irradiating module for irradiating a VCSEL beam having a single wavelength to a lower surface of the flat substrate through the beam transmitting plate; and an emissivity measuring configured to measure the laser beam reflected from the lower surface or an upper surface the flat substrate, thereby measuring the emissivity of the flat substrate.Type: ApplicationFiled: December 27, 2021Publication date: February 29, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Oh Sung Kwon, Tae Hyeong Kim, Byeong Gyu Jeong
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Publication number: 20240071788Abstract: The present disclosure discloses a flat substrate heating apparatus including a module support plate having a plurality of unit module regions placed on an upper surface thereof; a plurality of laser light source modules having a plurality of laser light source devices and seated on unit module regions of the module support plate, respectively; a power supply board placed below the module support plate and configured to supply power to the laser light source module; and an electrode terminal electrically connecting the laser light source module and the power supply board while detachably securing them to upper and lower surfaces of the module support plate.Type: ApplicationFiled: December 30, 2021Publication date: February 29, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Jin Hong Lee, Nam Chun Lee
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Publication number: 20240071786Abstract: The present disclosure provides substrate heat-treating apparatus including a process chamber in which a flat substrate to be heat treated is placed, the process chamber comprising a beam irradiating plate placed below the flat substrate and an infrared transmitting plate placed above the flat substrate; a beam irradiating module for irradiating a laser beam to a lower surface of the flat substrate through the beam irradiating plate; and a gas circulation cooling module for spraying a cooling gas to an upper surface of the infrared transmitting plate, thereby cooling the infrared transmitting plate.Type: ApplicationFiled: December 23, 2021Publication date: February 29, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Oh Sung Kwon, Jin Hong Lee, Nam Chun Lee
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Patent number: 11698300Abstract: Provided are an optical system capable of improving the spatial resolution of hyperspectral imaging and an optical alignment method using the same. The optical system includes a digital micromirror device (DMD) having a rectangular shape, a first cylindrical lens curved to focus and form an image on an axis corresponding to a shorter side of the DMD, and a second cylindrical lens curved in the same axial direction as the axis to collimate light reflected from the DMD.Type: GrantFiled: December 9, 2021Date of Patent: July 11, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Jeong Eun Kim, Kye Eun Kim, Keo Sik Kim, Hyun Seo Kang, Hyun Jin Kim, Gi Hyeon Min, Si Woong Park, Hyoung Jun Park, Chan Il Yeo, Young Soon Heo
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Patent number: 11454770Abstract: Provided are an apparatus and method for adjusting an optical axis. In the apparatus, an iris diaphragm and a quadrant photodiode (QPD) are used to align optical axes of an optical system of the apparatus so that optical transmission efficiency between an optical transmitter and an optical receiver can be increased. Since a hole of the iris diaphragm can be adjusted to be small, a beam larger than a light-receiving area of the QPD can be included in the light-receiving area, and optical axis alignment is facilitated accordingly. When the QPD and the iris diaphragm are applied to the apparatus, it is possible to simultaneously perform data transmission, tracking, and optical axis alignment. An optical fiber end surface and optical axes of lenses arranged in parallel are aligned in the apparatus so that alignment between two terminals can be easy and reception efficiency can be increased.Type: GrantFiled: August 25, 2020Date of Patent: September 27, 2022Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young Soon Heo, Sung Chang Kim, Hyun Seo Kang, Chan Il Yeo, Ji Hyoung Ryu, Si Woong Park, Kye Eun Kim, Keo Sik Kim, Jeong Eun Kim, Gi Hyeon Min, Hyoung Jun Park, Dong Hoon Son, Mun Seob Lee
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Publication number: 20220252451Abstract: Provided are an optical system capable of improving the spatial resolution of hyperspectral imaging and an optical alignment method using the same. The optical system includes a digital micromirror device (DMD) having a rectangular shape, a first cylindrical lens curved to focus and form an image on an axis corresponding to a shorter side of the DMD, and a second cylindrical lens curved in the same axial direction as the axis to collimate light reflected from the DMD.Type: ApplicationFiled: December 9, 2021Publication date: August 11, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong Eun KIM, Kye Eun KIM, Keo Sik KIM, Hyun Seo KANG, Hyun Jin KIM, Gi Hyeon MIN, Si Woong PARK, Hyoung Jun PARK, CHAN IL YEO, Young Soon HEO
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Publication number: 20220221342Abstract: Provided is an optical system which may acquire a hyperspectral image by acquiring a spectral image of an object to be measured, which includes, to collect spectral data and train the neural network, an image forming part forming an image from an object to be measured and transmitting collimated light, a slit moving to scan the incident image and passing and outputting a part of the formed image, and a first optical part obtaining spectral data by splitting light of the image received through the slit by wavelength. Also, the system includes, to decompose overlapped spectral data and to infer hyperspectral image data through the trained neural network, an image forming part forming an image from an object to be measured and transmitting collimated light, and a first optical part obtaining spectral data by splitting light of the received image by wavelength.Type: ApplicationFiled: January 7, 2022Publication date: July 14, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Keo Sik KIM, Kye Eun KIM, Jeong Eun KIM, Hyun Seo KANG, Hyun Jin KIM, Gi Hyeon MIN, Si Woong PARK, Hyoung Jun PARK, CHAN IL YEO, Young Soon HEO
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Publication number: 20210208535Abstract: Provided are a system and method for digital holographic imaging which are not affected by external vibrations. The system for digital holographic imaging includes a light source and optical system section configured to split generated beams and including a sample through which the beams pass, a lens, and a grating disposed behind the lens; an object signal acquisition section configured to receive the split beams and acquire an interference signal; and an image processor configured to acquire a three-dimensional (3D) image of an object by using the acquired interference signal.Type: ApplicationFiled: March 20, 2020Publication date: July 8, 2021Inventors: Gi Hyeon MIN, Keo Sik KIM, Hyun Seo KANG, Kye Eun KIM, Sung Chang KIM, Ji Hyoung RYU, Si Woong PARK, Hyoung Jun PARK, Dong Hoon SON, Chan Il YEO, Dong Soo LEE, Byung Tak LEE, Young Soon HEO
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Publication number: 20210063656Abstract: Provided are an apparatus and method for adjusting an optical axis. In the apparatus, an iris diaphragm and a quadrant photodiode (QPD) are used to align optical axes of an optical system of the apparatus so that optical transmission efficiency between an optical transmitter and an optical receiver can be increased. Since a hole of the iris diaphragm can be adjusted to be small, a beam larger than a light-receiving area of the QPD can be included in the light-receiving area, and optical axis alignment is facilitated accordingly. When the QPD and the iris diaphragm are applied to the apparatus, it is possible to simultaneously perform data transmission, tracking, and optical axis alignment. An optical fiber end surface and optical axes of lenses arranged in parallel are aligned in the apparatus so that alignment between two terminals can be easy and reception efficiency can be increased.Type: ApplicationFiled: August 25, 2020Publication date: March 4, 2021Inventors: Young Soon HEO, Sung Chang KIM, Hyun Seo KANG, Chan Il YEO, Ji Hyoung RYU, Si Woong PARK, Kye Eun KIM, Keo Sik KIM, Jeong Eun KIM, Gi Hyeon MIN, Hyoung Jun PARK, Dong Hoon SON, Mun Seob LEE
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Patent number: 10884186Abstract: A multi-channel receiver optical sub assembly module for a fiber Bragg grating sensor according to an embodiment of the present invention includes a housing, a connection socket, an optical bench, a thermoelectric cooler, an arrayed waveguide grating chip, a photodiode array disposed on the optical bench and including a plurality of photodiode chips connected to the optical channels of the arrayed waveguide grating chip, and a printed circuit board which is connected to the other side of the housing while passing through the other side of the housing, of which a portion of a body is disposed on the optical bench, and which is connected to the photodiode array.Type: GrantFiled: January 13, 2020Date of Patent: January 5, 2021Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Jin Kim, Hyoung Jun Park, Sung Chang Kim, Kye Eun Kim, Ji Hyoung Ryu, Gi Hyeon Min, Si Woong Park, Dong Hoon Son, Chan Il Yeo
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Patent number: 10833763Abstract: A wireless optical communication apparatus for performing bi-directional optical transmission in a free space includes a first optical system configured to transmit data through a downlink scheme and a second optical system configured to receive the data from the first optical system and transmit a control signal to the first optical system through an uplink scheme, wherein each of the first optical system and the second optical system transmits and receives the data and the control signal through a single port.Type: GrantFiled: December 2, 2019Date of Patent: November 10, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Seo Kang, Chan Il Yeo, Young Soon Heo, Kye Eun Kim, Sung Chang Kim, Ji Hyoung Ryu, Si Woong Park, Keo Sik Kim, Gi Hyeon Min, Hyoung Jun Park, Dong Hoon Son, Mun Seob Lee
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Publication number: 20200310029Abstract: A multi-channel receiver optical sub assembly module for a fiber Bragg grating sensor according to an embodiment of the present invention includes a housing, a connection socket, an optical bench, a thermoelectric cooler, an arrayed waveguide grating chip, a photodiode array disposed on the optical bench and including a plurality of photodiode chips connected to the optical channels of the arrayed waveguide grating chip, and a printed circuit board which is connected to the other side of the housing while passing through the other side of the housing, of which a portion of a body is disposed on the optical bench, and which is connected to the photodiode array.Type: ApplicationFiled: January 13, 2020Publication date: October 1, 2020Applicant: Electronics and Telecommunications Research InstituteInventors: Hyun Jin KIM, Hyoung Jun PARK, Sung Chang KIM, Kye Eun KIM, Ji Hyoung RYU, Gi Hyeon MIN, Si Woong PARK, Dong Hoon SON, Chan Il YEO
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Publication number: 20200186247Abstract: A wireless optical communication apparatus for performing bi-directional optical transmission in a free space includes a first optical system configured to transmit data through a downlink scheme and a second optical system configured to receive the data from the first optical system and transmit a control signal to the first optical system through an uplink scheme, wherein each of the first optical system and the second optical system transmits and receives the data and the control signal through a single port.Type: ApplicationFiled: December 2, 2019Publication date: June 11, 2020Inventors: Hyun Seo KANG, Chan Il YEO, Young Soon HEO, Kye Eun KIM, Sung Chang KIM, Ji Hyoung RYU, Si Woong PARK, Keo Sik KIM, Gi Hyeon MIN, Hyoung Jun PARK, Dong Hoon SON, Mun Seob LEE
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Patent number: 10591714Abstract: Provided is an endoscopic apparatus for thermal distribution monitoring, and more particularly, an endoscopic apparatus for thermal distribution monitoring that is capable of providing a functional image in which various images such as a real image and a thermal image, are matched to one another. The endoscopic apparatus includes: an image collecting unit including a thermal image collecting unit collecting a thermal image from an image signal of an object and a real image collecting unit collecting a real image from the image signal of the object; a controller transmitting a control signal to the image collecting unit so as to transmit the image signal to one of the thermal image collecting unit and the real image collecting unit according to a preset period; and a display displaying the collected thermal image and real image.Type: GrantFiled: May 31, 2017Date of Patent: March 17, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Keo Sik Kim, Hyun Seo Kang, Sung Chang Kim, Young Sun Kim, Jeong Eun Kim, Hee Seung Kim, Ji Hyoung Ryu, Hyoung Jun Park, Dong Hoon Son, Chan Il Yeo, Young Soon Heo
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Patent number: 10338326Abstract: Provided are a multi-channel optical subassembly structure allowing an optical unit including a light source photodetector chip to be fixed through an alignment jig after active alignment is performed on an individual or single light source photodetector chip by using the alignment jig capable of electrical coupling and one electrode pad and the other electrode pad of a thermoelectric element, which are wire-bonded, capable of performing active alignment for each light source photodetector chip, that is, for each channel, capable of replacing the optical unit and the alignment jig when a problem occurs in some or all channels, capable of improving optical coupling efficiency for each channel, and capable of addressing a time-consuming and economically expensive work in which an optical subassembly is discarded when some channels fail, and a method of packaging the structure.Type: GrantFiled: April 28, 2017Date of Patent: July 2, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong Eun Kim, Hyun Seo Kang, Keo Sik Kim, Sung Chang Kim, Young Sun Kim, Ji Hyoung Ryu, Hyoung Jun Park, Dong Hoon Son, Chan Il Yeo, Young Soon Heo
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Patent number: 10057451Abstract: Disclosed herein are an astral lamp device having detachable and angle-controllable LED module blocks and a method of setting the same. The astral lamp device having detachable and angle-controllable LED module blocks, includes a plurality of LED module blocks having one end attached to and disposed on a central frame; and an angle control part configured to control an angle of the LED module block attached to the central frame.Type: GrantFiled: September 29, 2015Date of Patent: August 21, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong Eun Kim, Hyun Seo Kang, Hyoung Jun Park, Dae Won Choi, Jai Sang Koh, Keo Sik Kim, Young Sun Kim, Ji Hyoung Ryu, Kwon Seob Lim, Eun Kyoung Jeon, Young Soon Heo
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Patent number: 10018791Abstract: Provided is a multi-channel optical subassembly. The multi-channel optical subassembly includes a first sub-mount including first and second areas having different thicknesses, a photoelectric device provided in the first area, a circuit board provided in the second area, a second sub-mount inserted into and fastened to the first guide hole and coupled to the first sub-mount, an optical fiber array fixed to the second sub-mount to provide a path through which light emitted from the photoelectric device is received or transferred, and a micro-lens array mounted on the second sub-mount. The first guide hole is provided in one of the first and second areas. The micro-lens array includes a lens collecting the light between the photoelectric device and the optical fiber array.Type: GrantFiled: September 19, 2017Date of Patent: July 10, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young Soon Heo, Hyun Seo Kang, Keo Sik Kim, Sung Chang Kim, Young Sun Kim, Jeong Eun Kim, Hee Seung Kim, Ji Hyoung Ryu, Hyoung Jun Park, Dong Hoon Son, Chan Il Yeo
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Publication number: 20180100978Abstract: Provided are a multi-channel optical subassembly structure allowing an optical unit including a light source photodetector chip to be fixed through an alignment jig after active alignment is performed on an individual or single light source photodetector chip by using the alignment jig capable of electrical coupling and one electrode pad and the other electrode pad of a thermoelectric element, which are wire-bonded, capable of performing active alignment for each light source photodetector chip, that is, for each channel, capable of replacing the optical unit and the alignment jig when a problem occurs in some or all channels, capable of improving optical coupling efficiency for each channel, and capable of addressing a time-consuming and economically expensive work in which an optical subassembly is discarded when some channels fail, and a method of packaging the structure.Type: ApplicationFiled: April 28, 2017Publication date: April 12, 2018Inventors: Jeong Eun KIM, Hyun Seo KANG, Keo Sik KIM, Sung Chang KIM, Young Sun KIM, Ji Hyoung RYU, Hyoung Jun PARK, Dong Hoon SON, Chan Il YEO, Young Soon HEO