Patents by Inventor Yu Lee

Yu 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).

  • Publication number: 20260125602
    Abstract: Provided is a useful hydrocarbon production method including: a methanation step for generating a first gas containing methane from a mixed gas containing hydrogen and carbon dioxide; a dry reforming step for generating a second gas containing carbon monoxide and hydrogen from the first gas; a useful hydrocarbon generating step for generating a third gas containing a useful hydrocarbon from the carbon monoxide and hydrogen in the second gas; and a recycling step of separating a dry reforming recycle gas containing at least carbon dioxide from the third gas, and supplying the dry reforming recycle gas to the dry reforming step.
    Type: Application
    Filed: October 5, 2023
    Publication date: May 7, 2026
    Inventors: Yuki KAWAMATA, Yuki IWANO, Hiroko TAKAHASHI, Yuichiro BAMBA, Junya HIRANO, Takashi FUJIKAWA, Yu LEE, Nobumitsu YAMANAKA
  • Patent number: 12573217
    Abstract: A server that creates a spatial model includes a derivation unit configured to derive boundary point information from a panoramic image of an indoor space; a point cloud creation unit configured to create a point cloud for the panoramic image; a division unit configured to divide the point cloud based on the boundary point information; a texture image creation unit configured to create a texture image by projecting the divided point cloud onto a plane corresponding to the divided point cloud; a mesh model creation unit configured to extract geometric information from the point cloud based on the boundary point information, and create a mesh model based on the extracted geometric information; and a spatial model creation unit configured to create the spatial model for the indoor space based on the texture image and the mesh model.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: March 10, 2026
    Assignee: KT CORPORATION
    Inventors: Yeo Jin Yun, Gyu Cheol Lee, Jong Kyong Park, Yu Lee, Zu Cheul Lee, Chul Hee Lee
  • Publication number: 20250242339
    Abstract: This catalyst for liquefied petroleum gas synthesis includes a Cu—Zn based catalytic material and an MFI type zeolite catalytic material supporting Pt, the Cu—Zn based catalytic material containing copper oxide, zinc oxide, aluminium oxide, and zirconium oxide, a mass (M(ZrO2)) of zirconium oxide in the Cu—Zn based catalytic material being more than 0 mass % and 6.5 mass % or less based on a mass (M1) of the Cu—Zn based catalytic material, and the MFI type zeolite catalytic material containing more than 0 mass % and less than 4.5 mass % of P.
    Type: Application
    Filed: December 28, 2022
    Publication date: July 31, 2025
    Inventors: Takashi FUJIKAWA, Yuki IWANO, Hiroko TAKAHASHI, Yuichiro BAMBA, Yuki KAWAMATA, Yu LEE, Junya HIRANO, Masayuki FUKUSHIMA
  • Publication number: 20250196113
    Abstract: A composite comprising: a skeleton having a porous structure and containing a crystalline SiO2 compound; and a fine particles including a metal oxide fine particles or a metal fine particle existing within the skeleton.
    Type: Application
    Filed: March 29, 2023
    Publication date: June 19, 2025
    Inventors: Yuki KAWAMATA, Yuichiro BANBA, Takashi FUJIKAWA, Yuki IWANO, Yu LEE, Junya HIRANO, Takao MASUDA, Yuta NAKASAKA
  • Publication number: 20240352365
    Abstract: A catalyst for synthesizing liquefied petroleum gas according to the present invention includes: a Cu—Zn-based catalytic material; and an MFI-type zeolite catalytic material supporting Pt, in which a ratio (M1/(M1+M2)) of mass (M1) of the Cu—Zn-based catalytic material to total mass of the mass (M1) of the Cu—Zn-based catalytic material and mass (M2) of the MFI-type zeolite catalytic material is 0.30 or more and 0.95 or less.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 24, 2024
    Inventors: Takashi FUJIKAWA, Yuki IWANO, Tomohiko MORI, Hiroko TAKAHASHI, Yuichiro BAMBA, Yuki KAWAMATA, Yu LEE, Junya HIRANO, Masayuki FUKUSHIMA
  • Publication number: 20230394766
    Abstract: A server that creates a spatial model includes a derivation unit configured to derive boundary point information from a panoramic image of an indoor space; a point cloud creation unit configured to create a point cloud for the panoramic image; a division unit configured to divide the point cloud based on the boundary point information; a texture image creation unit configured to create a texture image by projecting the divided point cloud onto a plane corresponding to the divided point cloud; a mesh model creation unit configured to extract geometric information from the point cloud based on the boundary point information, and create a mesh model based on the extracted geometric information; and a spatial model creation unit configured to create the spatial model for the indoor space based on the texture image and the mesh model.
    Type: Application
    Filed: October 21, 2021
    Publication date: December 7, 2023
    Inventors: Yeo Jin YUN, Gyu Cheol LEE, Jong Kyong PARK, Yu LEE, Zu Cheul LEE, Chul Hee LEE
  • Patent number: 11831278
    Abstract: A voltage-controlled oscillator device includes first and second voltage-controlled oscillators, a first switch group including two first switches, and a second switch group including two second switches. The first voltage-controlled oscillator includes a first inductor group, a first negative resistance circuit and a first voltage output terminal group. The second voltage-controlled oscillator includes a second inductor group, a second negative resistance circuit and a second voltage output terminal group. For the first switch group, first control terminals are electrically connected to the first voltage output terminal group, first input terminals are electrically connected to the second voltage output terminal group, first output terminals are electrically connected.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: November 28, 2023
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang Chang, Yu Lee, Hua-Shan Hu, Ching-Yuan Yang
  • Publication number: 20230198467
    Abstract: A voltage-controlled oscillator device includes first and second voltage-controlled oscillators, a first switch group including two first switches, and a second switch group including two second switches. The first voltage-controlled oscillator includes a first inductor group, a first negative resistance circuit and a first voltage output terminal group. The second voltage-controlled oscillator includes a second inductor group, a second negative resistance circuit and a second voltage output terminal group. For the first switch group, first control terminals are electrically connected to the first voltage output terminal group, first input terminals are electrically connected to the second voltage output terminal group, first output terminals are electrically connected.
    Type: Application
    Filed: August 11, 2022
    Publication date: June 22, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang CHANG, Yu LEE, Hua-Shan HU, Ching-Yuan YANG
  • Patent number: 11195903
    Abstract: A highly stable organic light-emitting panel includes a substrate and a plurality of pixelated OLED circuit assemblies. The substrate further includes an auxiliary electrode and a plurality of circuit protection structures, each of which is electrically connected to a corresponding pixelated first electrode in each pixelated OLED circuit assembly. The plurality of circuit protection structures are respectively connected to the auxiliary electrode. An insulator covers the auxiliary electrode, the plurality of circuit protection structures, and an area between the plurality of circuit protection structures and the plurality of OLED circuit assemblies.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: December 7, 2021
    Assignee: Gu'an Yeolight Technology Co., Ltd
    Inventors: Yu Lee, Yingguang Zhu, Jing Xie, Qianqian Yu, Lixue Guo, Yonglan Hu
  • Patent number: 11156344
    Abstract: A luminaire (20) for mounting in an annular housing (10) having a cylindrical sidewall with an inner diameter (15), said sidewall terminating in an upper rim (12) is disclosed. The luminaire (20) comprises a reflector (50) having a light exit aperture (51) mounted in an annular body and a wedge-shaped clip (40) movably attached to the annular body by a spring (44) such that the annular body has a first diameter not exceeding the inner diameter (15) when the clip is pressed against the body by compressing said spring; and a second diameter exceeding the inner diameter when said spring is relaxed. The clip (40) further comprises an outwardly inclined member (42) in the direction of the light exit aperture and the reflector further comprises an outwardly inclining groove (52) in the direction of the light exit aperture engaging with the outwardly inclined member (42) to facilitate easy release of the luminaire from its annular housing.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: October 26, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Yu Lee, Jisong Xu, Liang Bao
  • Publication number: 20210262643
    Abstract: A luminaire (20) for mounting in an annular housing (10) having a cylindrical sidewall with an inner diameter (15), said sidewall terminating in an upper rim (12) is disclosed. The luminaire (20) comprises a reflector (50) having a light exit aperture (51) mounted in an annular body and a wedge-shaped clip (40) movably attached to the annular body by a spring (44) such that the annular body has a first diameter not exceeding the inner diameter (15) when the clip is pressed against the body by compressing said spring; and a second diameter exceeding the inner diameter when said spring is relaxed. The clip (40) further comprises an outwardly inclined member (42) in the direction of the light exit aperture and the reflector further comprises an outwardly inclining groove (52) in the direction of the light exit aperture engaging with the outwardly inclined member (42) to facilitate easy release of the luminaire from its annular housing.
    Type: Application
    Filed: June 11, 2019
    Publication date: August 26, 2021
    Inventors: Yu LEE, Jisong XU, Liang BAO
  • Publication number: 20200286962
    Abstract: A highly stable organic light-emitting panel includes a substrate and a plurality of pixelated OLED circuit assemblies. The substrate further includes an auxiliary electrode and a plurality of circuit protection structures, each of which is electrically connected to a corresponding pixelated first electrode in each pixelated OLED circuit assembly. The plurality of circuit protection structures are respectively connected to the auxiliary electrode. An insulator covers the auxiliary electrode, the plurality of circuit protection structures, and an area between the plurality of circuit protection structures and the plurality of OLED circuit assemblies.
    Type: Application
    Filed: December 25, 2018
    Publication date: September 10, 2020
    Applicant: Gu'an Yeolight Technology Co., Ltd
    Inventors: Yu Lee, Yingguang Zhu, Jing Xie, Qianqian Yu, Lixue Guo, Yonglan Hu
  • Patent number: 9564906
    Abstract: A capacitance phase interpolation circuit including a first capacitance phase interpolation unit and a second capacitance phase interpolation unit is disclosed. The first capacitance phase interpolation unit includes a first capacitance group, wherein a plurality of capacitors in the first capacitance group are in a ring coupling, and the first capacitance phase interpolation unit receives a plurality of reference clock signals. The second capacitance phase interpolation unit is coupled to the first capacitance phase interpolation unit and includes a second capacitance group, wherein a plurality of capacitors in the second capacitance group are in a ring coupling, and each of the output clock signals is obtained via the first capacitance phase interpolation unit and the second capacitance phase interpolation unit by performing phase interpolation on all the reference clock signals.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 7, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang Chang, Yu Lee, Nai-Chen Cheng, Ching-Yuan Yang
  • Publication number: 20150365071
    Abstract: A capacitance phase interpolation circuit including a first capacitance phase interpolation unit and a second capacitance phase interpolation unit is disclosed. The first capacitance phase interpolation unit includes a first capacitance group, wherein a plurality of capacitors in the first capacitance group are in a ring coupling, and the first capacitance phase interpolation unit receives a plurality of reference clock signals. The second capacitance phase interpolation unit is coupled to the first capacitance phase interpolation unit and includes a second capacitance group, wherein a plurality of capacitors in the second capacitance group are in a ring coupling, and each of the output clock signals is obtained via the first capacitance phase interpolation unit and the second capacitance phase interpolation unit by performing phase interpolation on all the reference clock signals.
    Type: Application
    Filed: November 4, 2014
    Publication date: December 17, 2015
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang CHANG, Yu LEE, Nai-Chen CHENG, Ching-Yuan YANG
  • Patent number: 8829966
    Abstract: A current reuse frequency divider including a first latch circuit and a second latch circuit is provided. The first latch circuit includes a first transistor pair and a second transistor pair. The first latch circuit receives a first differential oscillation signal through bodies of the first transistor pair and the second transistor pair and divides the frequency of the first differential oscillation signal to generate a second differential oscillation signal. The second latch circuit is coupled to the first latch circuit and includes a third transistor pair and a fourth transistor pair. The second latch circuit receives the first differential oscillation signal through bodies of the third transistor pair and the fourth transistor pair and divides the frequency of the first differential oscillation signal to generate a third differential oscillation signal.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: September 9, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Hsiang Chang, Nai-Chen Cheng, Yu Lee, Ching-Yuan Yang
  • Publication number: 20140139273
    Abstract: A current reuse frequency divider including a first latch circuit and a second latch circuit is provided. The first latch circuit includes a first transistor pair and a second transistor pair. The first latch circuit receives a first differential oscillation signal through bodies of the first transistor pair and the second transistor pair and divides the frequency of the first differential oscillation signal to generate a second differential oscillation signal. The second latch circuit is coupled to the first latch circuit and includes a third transistor pair and a fourth transistor pair. The second latch circuit receives the first differential oscillation signal through bodies of the third transistor pair and the fourth transistor pair and divides the frequency of the first differential oscillation signal to generate a third differential oscillation signal.
    Type: Application
    Filed: December 27, 2012
    Publication date: May 22, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang Chang, Nai-Chen Cheng, Yu Lee, Ching-Yuan Yang
  • Patent number: 8723609
    Abstract: A voltage-controlled oscillator (VCO) module including a first VCO unit, a second VCO unit, and a matching circuit is provided. The first VCO unit includes a first terminal and a second terminal and generates a first oscillator signal. The second VCO unit is coupled to the first VCO unit and generates a second oscillator signal. The matching circuit is coupled between the first VCO unit and second VCO unit. The matching circuit includes a plurality of inductor modules respectively coupled between the first terminal of the first VCO unit and the second VCO unit, between the first terminal and the second terminal of the first VCO unit, and between the second terminal of the first VCO unit and the second VCO unit. Furthermore, a method for generating oscillator signals is also provided.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: May 13, 2014
    Assignee: Idustrial Technology Research Institute
    Inventors: Chih-Hsiang Chang, Nai-Chen Cheng, Yu Lee, Ching-Yuan Yang
  • Publication number: 20130241661
    Abstract: A voltage-controlled oscillator (VCO) module including a first VCO unit, a second VCO unit, and a matching circuit is provided. The first VCO unit includes a first terminal and a second terminal and generates a first oscillator signal. The second VCO unit is coupled to the first VCO unit and generates a second oscillator signal. The matching circuit is coupled between the first VCO unit and second VCO unit. The matching circuit includes a plurality of inductor modules respectively coupled between the first terminal of the first VCO unit and the second VCO unit, between the first terminal and the second terminal of the first VCO unit, and between the second terminal of the first VCO unit and the second VCO unit. Furthermore, a method for generating oscillator signals is also provided.
    Type: Application
    Filed: July 26, 2012
    Publication date: September 19, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang Chang, Nai-Chen Cheng, Yu Lee, Ching-Yuan Yang
  • Patent number: 8384455
    Abstract: An apparatus for clock skew compensation is provided. The apparatus includes a first delay locked loop (DLL) module disposed in a first die and a second DLL module disposed in a second die. A first input terminal of the first DLL module receives a reference clock. A first input terminal of the second DLL module is electrically connected to an output terminal of the first DLL module. An output terminal of the second DLL module is electrically connected to a second input terminal of the first DLL module.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: February 26, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Yu Lee, Nai-Chen Cheng, Ji-Jan Chen, Yuan-Hua Chu, Ching-Yuan Yang
  • Publication number: 20120146693
    Abstract: An apparatus for clock skew compensation is provided. The apparatus includes a first delay locked loop (DLL) module disposed in a first die and a second DLL module disposed in a second die. A first input terminal of the first DLL module receives a reference clock. A first input terminal of the second DLL module is electrically connected to an output terminal of the first DLL module. An output terminal of the second DLL module is electrically connected to a second input terminal of the first DLL module.
    Type: Application
    Filed: May 23, 2011
    Publication date: June 14, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu Lee, Nai-Chen Cheng, Ji-Jan Chen, Yuan-Hua Chu, Ching-Yuan Yang