Patents by Inventor Jeong Ho Ju
Jeong Ho Ju 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: 11988811Abstract: A polarizing plate includes: a polarizer; a pattern layer on one surface of the polarizer, the pattern layer including a first refractive index layer having at least one engraved pattern and a second refractive index layer having a filling pattern filling at least a portion of the engraved pattern, the first refractive index layer having a higher refractive index than the second refractive index layer; and a first protective layer. The polarizing plate has a structure in which the polarizer, the second refractive index layer, the first refractive index layer and the first protective layer are sequentially stacked in that order, or in which the polarizer, the first protective layer, the second refractive index layer and the first refractive index layer are sequentially stacked in that order. The first protective layer includes a base film including at least one resin of triacetylcellulose, polyethylene terephthalate, cyclic olefin polymer, and acrylic resins.Type: GrantFiled: August 26, 2020Date of Patent: May 21, 2024Assignee: Samsung SDI Co., Ltd.Inventors: Seong Hoon Lee, Young Oh, Jeong Ho Lee, Young Hyun Ju
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Patent number: 11987833Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.Type: GrantFiled: October 16, 2020Date of Patent: May 21, 2024Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGYInventors: Jeong Woo Seo, Jong Jae Yi, Sun Yeon Heo, Young Bae Kim, Chul Ho Kim, Baek Rock Oh, Jung Hyun Ju, Hack Sun Choi
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Publication number: 20240094454Abstract: A polarizing plate includes: a polarizer; a pattern layer on one surface of the polarizer, the pattern layer including a first refractive index layer having at least one engraved pattern and a second refractive index layer having a filling pattern filling at least a portion of the engraved pattern, the first refractive index layer having a higher refractive index than the second refractive index layer; and a first protective layer. The polarizing plate has a structure in which the polarizer, the second refractive index layer, the first refractive index layer and the first protective layer are sequentially stacked in that order, or in which the polarizer, the first protective layer, the second refractive index layer and the first refractive index layer are sequentially stacked in that order. The first protective layer includes a base film including at least one resin of triacetylcellulose, polyethylene terephthalate, cyclic olefin polymer, and acrylic resins.Type: ApplicationFiled: September 21, 2023Publication date: March 21, 2024Inventors: Seong Hoon Lee, Young Oh, Jeong Ho Lee, Young Hyun Ju
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Publication number: 20150194740Abstract: A monopole MIMO antenna apparatus using a monopole antenna or dipole antenna is provided. The antenna apparatus may include a first antenna device disposed at a side of a ground surface, a second antenna device disposed at another side of the ground surface and at least one parasitic antenna device spaced apart from the first antenna device and the second antenna device by a predetermined distance between the first antenna device and the second antenna device.Type: ApplicationFiled: December 26, 2014Publication date: July 9, 2015Inventor: Jeong Ho JU
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Patent number: 8350759Abstract: Provided is antenna having metamaterial and providing gain improvement and beamforming together. The antenna includes a resonator and a superstrate. A feed antenna is disposed in the resonator. The superstrate includes a conductive pattern on the resonator for improving gain and beamforming of the feed antenna.Type: GrantFiled: December 9, 2009Date of Patent: January 8, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jeong Ho Ju, Dong Ho Kim, Jae Ick Choi, Wang Joo Lee
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Patent number: 8213089Abstract: Disclosed are a projecting type hyper-lens and a method of manufacturing the same. The projecting type hyper-lens includes a main lens layer and a substrate layer. A front surface of the main lens layer is recessed. The substrate layer supports the main lens layer. A front central portion of the main lens layer protrudes beyond a surface of the substrate layer. The projecting type hyper-lens allows an object to move towards a front surface of the hyper-lens until a distance between the front surface of the hyper-lens and the object is smaller than a half-wavelength of light, and thus images an object smaller than a half-wavelength of used light. Evanescent waves scattered from an object is used in a manner convenient to a user.Type: GrantFiled: November 9, 2009Date of Patent: July 3, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Wang-joo Lee, Jeong-ho Ju, Dong-ho Kim, Jae-ick Choi
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Patent number: 8188744Abstract: An apparatus for detecting a magnetic field includes a coil type magnetic resonator having a resonant frequency with respect to a magnetic field varying at a particular frequency and a loop antenna inductively coupled to the coil type magnetic resonator.Type: GrantFiled: August 7, 2009Date of Patent: May 29, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Wangjoo Lee, Dong Ho Kim, Jeong Ho Ju, Jae Ick Choi
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Publication number: 20120019428Abstract: An antenna includes: a radiation patch; a feed line having a first stage through which power is fed to the radiation patch, and a second stage connected to a feed terminal; a transformer disposed between the radiation patch and the first stage of the feed line and configured to match an impedance of the radiation patch with an impedance of the feed line; and a filter connected in series between the first stage and the second stage of the feed line and configured to filter resonances generated at frequency bands corresponding to integer multiples of a frequency applied to the radiation patch.Type: ApplicationFiled: July 11, 2011Publication date: January 26, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventor: Jeong-Ho JU
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Publication number: 20110241798Abstract: Provided are a resonator and a filter performing a filtering operation by using the resonator. The filter includes a first resonation unit connected in series to an input terminal and having a first resonant frequency, a filtering unit connected in series to the first resonation unit to filter a signal inputted through the input terminal, a second resonation unit connected in series between the filtering unit and an output terminal and having a second resonant frequency, a first zero-order resonation unit connected in parallel to a connection terminal between the input terminal and the first resonation unit and having a first zero-order resonant frequency equal to the first resonant frequency, and a second zero-order resonation unit connected in parallel to a connection terminal between the output terminal and the second resonation unit and having a second zero-order resonant frequency equal to the second resonant frequency.Type: ApplicationFiled: March 24, 2011Publication date: October 6, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ju-Yeon HONG, Jeong-Ho Ju, Dong-Ho Kim, Young-Jun Chong, Wangjoo Lee, Jae-Ick Choi
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Publication number: 20110128202Abstract: An antenna employed in a base station is provided. The antenna comprises a feed antenna configured to feed power, and a superstrate configured to be located on an upper portion of the feed antenna and have a conductive pattern for increasing a gain and beam width control on a surface of a dielectric substrate. Accordingly, gain increase and beam width control of the antenna can be simultaneously realized.Type: ApplicationFiled: November 29, 2010Publication date: June 2, 2011Applicant: Electronics and Telecommunications Research InstituteInventor: Jeong-Ho JU
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Publication number: 20110128201Abstract: A circularly polarized antenna in a wireless communication system includes: at least one feed antenna positioned at a predetermined point on at least one ground substrate; and a unit antenna having a plurality of conductive structures arranged in a predetermined identical direction on a superstrate positioned at a predetermined distance from above the feed antenna. The plurality of conductive structures and the unit antenna are configured to radiate circularly polarized waves, respectively, when the feed antenna radiates linearly polarized waves.Type: ApplicationFiled: November 23, 2010Publication date: June 2, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong-Ho JU, Jae-Ick Choi, Wangjoo Lee, Dong-Ho Kim
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Publication number: 20100277374Abstract: Provided is antenna having metamaterial and providing gain improvement and beamforming together. The antenna includes a resonator and a superstrate. A feed antenna is disposed in the resonator. The superstrate includes a conductive pattern on the resonator for improving gain and beamforming of the feed antenna.Type: ApplicationFiled: December 9, 2009Publication date: November 4, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Jeong Ho JU, Dong Ho KIM, Jae Ick CHOI, Wang Joo LEE
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Publication number: 20100134897Abstract: Disclosed are a projecting type hyper-lens and a method of manufacturing the same. The projecting type hyper-lens includes a main lens layer and a substrate layer. A front surface of the main lens layer is recessed. The substrate layer supports the main lens layer. A front central portion of the main lens layer protrudes beyond a surface of the substrate layer. The projecting type hyper-lens allows an object to move towards a front surface of the hyper-lens until a distance between the front surface of the hyper-lens and the object is smaller than a half-wavelength of light, and thus images an object smaller than a half-wavelength of used light. Evanescent waves scattered from an object is used in a manner convenient to a user.Type: ApplicationFiled: November 9, 2009Publication date: June 3, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Wang-joo LEE, Jeong-ho JU, Dong-ho KIM, Jae-ick CHOI
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Publication number: 20100127707Abstract: Magnetic resonance imaging (MRI) devices detect a magnetic field having a particular frequency induced by hydrogen nuclei included in a human body and convert the detected magnetic field into two- or three-dimensional images, thereby visualizing the internal structure of the human body without causing any harm to the human body. The higher the resolution of an MRI technique, the more accurate a diagnosis can be obtained. Thus, various methods are introduced to improve resolutions. For example, a wearable magnetic resonator and an application device including the wearable magnetic resonator are provided. The wearable magnetic resonator is flexible and used to improve MRI resolution by amplifying MR signals while being attached to a human body to amplify MR signals when MRI is performed.Type: ApplicationFiled: November 24, 2009Publication date: May 27, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Wangjoo LEE, Dong Ho Kim, Jeong Ho Ju, Jae Ick Choi
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Publication number: 20100033178Abstract: An apparatus for detecting a magnetic field includes a coil type magnetic resonator having a resonant frequency with respect to a magnetic field varying at a particular frequency and a loop antenna inductively coupled to the coil type magnetic resonator.Type: ApplicationFiled: August 7, 2009Publication date: February 11, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Wangjoo LEE, Dong Ho Kim, Jeong Ho Ju, Jae Ick Choi