Patents by Inventor Joo Hyeon Lee
Joo Hyeon 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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Publication number: 20230382714Abstract: A MEMS microphone includes a substrate having a cavity, a diaphragm disposed above the cavity and having a ventilation path, and a back plate disposed above the diaphragm and having a plurality of air holes. The ventilation path includes a plurality of slits extending in a circumferential direction.Type: ApplicationFiled: May 24, 2023Publication date: November 30, 2023Inventors: Min Hyun JUNG, Joo Hyeon LEE
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Publication number: 20220377921Abstract: A cover window includes a first film, an adhesive layer below the first film, and a second film below the adhesive layer. The second film includes a base substrate and a pattern layer which is on the base substrate and includes a plurality of protrusions. The pattern layer includes a plurality of protrusions that become narrower in a direction towards the first film. A modulus of the base substrate is about 500 megapascals (MPa) to about 1.5 gigapascals (GPa) when a modulus of the pattern layer is about 5 MPa to about 20 MPa, or the modulus of the base substrate is about 3.5 GPa or more when the modulus of the pattern layer is about 30 MPa to about 50 MPa.Type: ApplicationFiled: November 1, 2021Publication date: November 24, 2022Inventors: Joo Hyeon Lee, Ji Eun Nam, Heon Jung Shin
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Publication number: 20220231254Abstract: A display device is provided. A display device including folding areas, the display device includes a display panel, a first protection member disposed on the display panel, a second protection member disposed on the first protection member, a first adhesive member disposed between the display panel and the first protection member, and a second adhesive member disposed between the first protection member and the second protection member and having an elastic modulus equal to or smaller than an elastic modulus of the first adhesive member.Type: ApplicationFiled: October 14, 2021Publication date: July 21, 2022Inventors: Jeoung Sub LEE, Ji Eun NAM, Joo Hyeon LEE, Heon Jung SHIN, Tae Hyeog JUNG
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Publication number: 20210403845Abstract: An apparatus for measuring an electrophysiological signal of a three-dimensional (3D) cell and a method of fabricating the apparatus. The apparatus includes a flexible substrate including a plurality of protrusions, and a conductor formed on the plurality of protrusions, and regions other than the plurality of protrusions are partially removed from the flexible substrate.Type: ApplicationFiled: October 28, 2020Publication date: December 30, 2021Inventors: Hyunjoo Lee, Chaeyun Shim, Yehhyun Jo, Kiup Kim, Joo-hyeon Lee, Eunyoung Jang
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Patent number: 10622490Abstract: Provided is a reconfigurable logic device using an electrochemical potential. The device includes first and second semiconductor channels, where an effective magnetic field direction of a channel is controlled by a current direction and which are spaced apart from each other, a first ferromagnetic gate contacting the first semiconductor channel and a second ferromagnetic gate contacting the second semiconductor channel, where a magnetization direction is controlled by a gate voltage, and a control unit configured to calculate a difference value corresponding to a difference between a first determination value and a second determination value, and compare the difference value with a reference value to determine an output value.Type: GrantFiled: March 14, 2018Date of Patent: April 14, 2020Assignee: Korea Institute of Science and TechnologyInventors: Hyun Cheol Koo, Hyung Jun Kim, Cha Un Jang, Joon Yeon Chang, Suk Hee Han, Joo Hyeon Lee
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Patent number: 10496414Abstract: A semiconductor device may include a fuse array configured to output fuse data. The semiconductor device may include a latch circuit configured to store the fuse data during an enabled section of a dummy boot-up signal, output the stored fuse data as a fuse data information signal during a disabled section of the dummy boot-up signal, and fix the fuse data information signal to a specific level during the enabled section of the dummy boot-up signal regardless of the stored fuse data.Type: GrantFiled: April 10, 2018Date of Patent: December 3, 2019Assignee: SK hynix Inc.Inventors: Chul Moon Jung, Joo Hyeon Lee, Sung Nyou Yu
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Patent number: 10393689Abstract: In embodiments, a semiconductor gas sensor includes a substrate having a cavity, a first insulation layer formed on the substrate, including an exposure hole formed at a position corresponding to the cavity and a peripheral portion of the cavity, a second insulation layer formed on the first insulation layer, covering the exposure hole, a heating electrode formed on the second insulation layer, being formed at a position corresponding to the cavity, a sensing electrode formed over the heating electrode, being electrically insulated from the heating electrode and a detection layer covering the sensing electrode, being capable of having a variable resistance when acting with a predetermined kind of gas.Type: GrantFiled: January 24, 2017Date of Patent: August 27, 2019Assignee: DB HITEK CO., LTD.Inventors: Joo Hyeon Lee, Han Choon Lee
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Publication number: 20190136199Abstract: Described herein are methods and compositions relating to the provision and/or differentiation of certain fully differentiated lung cell types, including surfactant producing cells (e.g. club secretory cells), mucus producing (Goblet) cells, mucus-producing goblet like cells, and beating ciliated cells. In some embodiments, one or more of the differentiated lung cell types is present in an organoid. Differentiation of these lung cell types can be induced by contacting lung stem and/or progenitor cells with one or more inhibitors of H3K9me1/2 methyltransferase, e.g., an inhibitor of G9a and/or Glp (EMHT2 and/or EHMT1).Type: ApplicationFiled: June 8, 2017Publication date: May 9, 2019Applicant: CHILDREN'S MEDICAL CENTER CORPORATIONInventors: Carla F. KIM, Samuel P. ROWBOTHAM, Joo-Hyeon LEE
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Patent number: 10241067Abstract: A semiconductor gas sensor includes a substrate having a cavity, a first insulation layer formed on the substrate, including an exposure hole formed at a position corresponding to the cavity and a peripheral portion of the cavity, a second insulation layer formed on the first insulation layer, covering the exposure hole, a heating electrode formed on the second insulation layer, being formed at a position corresponding to the cavity, a sensing electrode formed over the heating electrode, being electrically insulated from the heating electrode, a detection layer covering the sensing electrode, being capable of having a variable resistance when acting with a predetermined kind of gas, and a vent hole formed by penetrating the second insulation layer to communicate with the exposure hole, and the vent hole being capable of dissipating heat from the heating electrode in a upward direction with respect to the substrate.Type: GrantFiled: January 24, 2017Date of Patent: March 26, 2019Assignee: DB Hitek Co., LtdInventors: Han Choon Lee, Ye Eun Na, Joo Hyeon Lee
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Publication number: 20190056956Abstract: A semiconductor device may include a fuse array configured to output fuse data. The semiconductor device may include a latch circuit configured to store the fuse data during an enabled section of a dummy boot-up signal, output the stored fuse data as a fuse data information signal during a disabled section of the dummy boot-up signal, and fix the fuse data information signal to a specific level during the enabled section of the dummy boot-up signal regardless of the stored fuse data.Type: ApplicationFiled: April 10, 2018Publication date: February 21, 2019Applicant: SK hynix Inc.Inventors: Chul Moon JUNG, Joo Hyeon LEE, Sung Nyou YU
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Publication number: 20190035943Abstract: Provided is a reconfigurable logic device using an electrochemical potential. The device includes first and second semiconductor channels, where an effective magnetic field direction of a channel is controlled by a current direction and which are spaced apart from each other, a first ferromagnetic gate contacting the first semiconductor channel and a second ferromagnetic gate contacting the second semiconductor channel, where a magnetization direction is controlled by a gate voltage, and a control unit configured to calculate a difference value corresponding to a difference between a first determination value and a second determination value, and compare the difference value with a reference value to determine an output value.Type: ApplicationFiled: March 14, 2018Publication date: January 31, 2019Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyun Cheol KOO, Hyung Jun KIM, Cha Un JANG, Joon Yeon CHANG, Suk Hee HAN, Joo Hyeon LEE
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Patent number: 10172554Abstract: A textile electrode kit mounted to the clothing includes a contact-type electrode or a non-contact electrode, and the textile electrode kit may be mounted to a clothing having a lower fixed member configured to reduce a motion artifact and a partially three-dimensional clothing structure by means of sewing. On occasions, the textile electrode kit having a non-contact electrode may be inserted into and used in an electrode-mounting pocket or an electrode-mounting tunnel formed at the clothing. The textile electrode kit of the present disclosure may detect various kinds of bio signals such as a heart activity signal, an electrocardiogram (ECG) signal, an electromyogram signal, a breathing signal or the like.Type: GrantFiled: September 5, 2014Date of Patent: January 8, 2019Assignees: Industry-Academic Cooperation Foundation, Yonsei University, Konkuk University Industrial Cooperation Corp.Inventors: Joo Hyeon Lee, Jeong-Whan Lee, Young-Jae Lee, Hye Ran Koo
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Patent number: 10172553Abstract: Provided is a conductive textile-based inductance-type electrode apparatus for bio-signal detection, which includes an electrode unit (10) having a textile electrode (200) for receiving an oscillation signal from an oscillating unit and outputting a bio signal of a subject person, the textile electrode having a spiral coil (101) disposed at a textile sheet (103) formed by spirally turning a coil thread with conductivity from one end to the other end disposed at a center portion thereof, a bottom textile sheet (120) coming in contact with a skin of the subject person, and a buffering member (145) disposed between the electrode unit (10) and the bottom textile sheet (120) to separate the electrode unit (10) from the skin.Type: GrantFiled: August 28, 2014Date of Patent: January 8, 2019Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Joo Hyeon Lee, Jeong-Whan Lee, Young-Jae Lee, Sunok Gi
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Patent number: 10158949Abstract: A MEMS microphone includes a substrate having a cavity, a back plate disposed over the substrate, a diaphragm being disposed between the substrate and the back plate and being spaced apart from the substrate and the back plate and at least one anti-buckling portion provided between the substrate and the diaphragm. The diaphragm covers the cavity and the diaphragm senses an acoustic pressure to create a displacement. The anti-buckling portion is configured to temporarily support the diaphragm in case of a warpage of the diaphragm to prevent a buckling of the diaphragm. Thus, the MEMS microphone can prevent the diaphragm from generating a warpage by more than a predetermined degree, so that the diaphragm can have a tensile stress and the buckling phenomenon of the diaphragm can be prevented.Type: GrantFiled: April 26, 2017Date of Patent: December 18, 2018Assignee: DB HITEK CO., LTD.Inventors: Jong Won Sun, Joo Hyeon Lee, Han Choon Lee
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Patent number: 10057541Abstract: In an image capturing apparatus and a photographing method using the same, the image capturing apparatus comprises: a transparent display panel; and a camera facing a bottom surface of the transparent display panel for synchronizing a shutter time with a period when the transparent display panel displays a black image, and for capturing an image positioned in front of the transparent display panel, thereby capturing a clear image without interference between images due to light-leakage property.Type: GrantFiled: May 6, 2011Date of Patent: August 21, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jin-Koo Chung, Chan-Young Park, Jun-Ho Choi, Joo-Hyeon Lee, Seong-Min Kim, Sang-Moo Choi
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Patent number: 9847486Abstract: An organic light emitting display device having high transmittance with respect to external light and a method of manufacturing the same. The organic light emitting display device includes a substrate; a plurality of pixels formed on the substrate, each of the pixels including a first region that emits light and a second region that transmits external light; a plurality of thin film transistors disposed in the first region of each pixel; a plurality of first electrodes disposed in the first region of each pixel and electrically connected to the thin film transistors, respectively; a second electrode formed opposite to the plurality of first electrodes and comprising a plurality of transmission windows corresponding to the second regions; and an organic layer formed between the first electrodes and the second electrode. The transmission windows can be formed in the second electrode, that is, a cathode.Type: GrantFiled: November 4, 2016Date of Patent: December 19, 2017Assignee: Samsung Display Co., Ltd.Inventors: Byoung-Hee Park, Joo-Hyeon Lee, Jin-Koo Chung
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Publication number: 20170311083Abstract: A MEMS microphone includes a substrate having a cavity, a back plate disposed over the substrate, a diaphragm being disposed between the substrate and the back plate and being spaced apart from the substrate and the back plate and at least one anti-buckling portion provided between the substrate and the diaphragm. The diaphragm covers the cavity and the diaphragm senses an acoustic pressure to create a displacement. The anti-buckling portion is configured to temporarily support the diaphragm in case of a warpage of the diaphragm to prevent a buckling of the diaphragm. Thus, the MEMS microphone can prevent the diaphragm from generating a warpage by more than a predetermined degree, so that the diaphragm can have a tensile stress and the buckling phenomenon of the diaphragm can be prevented.Type: ApplicationFiled: April 26, 2017Publication date: October 26, 2017Inventors: Jong Won SUN, Joo Hyeon LEE, Han Choon LEE
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Patent number: 9761647Abstract: An organic light emitting display and a method of manufacturing the same. The organic light-emitting display is a transparent display where one can see through the display to view an image on the other side of the display. Each pixel of the display has a first region that includes an organic light emitting diode and a thin film transistor, and a larger second region that is transparent. The second region is made of either transparent layers or ultra-thin layers so that light is not blocked. A second electrode of the display may include magnesium and may be produced by a selective deposition process, so that use of a fine metal mask may be avoided.Type: GrantFiled: December 28, 2015Date of Patent: September 12, 2017Assignee: Samsung Display Co., Ltd.Inventors: Joo-Hyeon Lee, Byoung-Hee Park, Jin-Koo Chung, Jun-Ho Choi, Seong-Min Kim
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Publication number: 20170234821Abstract: A semiconductor gas sensor includes a substrate having a cavity, a first insulation layer formed on the substrate, including an exposure hole formed at a position corresponding to the cavity and a peripheral portion of the cavity, a second insulation layer formed on the first insulation layer, covering the exposure hole, a heating electrode formed on the second insulation layer, being formed at a position corresponding to the cavity, a sensing electrode formed over the heating electrode, being electrically insulated from the heating electrode, a detection layer covering the sensing electrode, being capable of having a variable resistance when acting with a predetermined kind of gas, and a vent hole formed by penetrating the second insulation layer to communicate with the exposure hole, and the vent hole being capable of dissipating heat from the heating electrode in a upward direction with respect to the substrate.Type: ApplicationFiled: January 24, 2017Publication date: August 17, 2017Inventors: Han Choon Lee, Ye Eun Na, Joo Hyeon Lee
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Patent number: RE49965Abstract: An organic light emitting display device having high transmittance with respect to external light and a method of manufacturing the same. The organic light emitting display device includes a substrate; a plurality of pixels formed on the substrate, each of the pixels including a first region that emits light and a second region that transmits external light; a plurality of thin film transistors disposed in the first region of each pixel; a plurality of first electrodes disposed in the first region of each pixel and electrically connected to the thin film transistors, respectively; a second electrode formed opposite to the plurality of first electrodes and comprising a plurality of transmission windows corresponding to the second regions; and an organic layer formed between the first electrodes and the second electrode. The transmission windows can be formed in the second electrode, that is, a cathode.Type: GrantFiled: December 18, 2019Date of Patent: May 7, 2024Assignee: Samsung Display Co., Ltd.Inventors: Byoung-Hee Park, Joo-Hyeon Lee, Jin-Koo Chung