Patents by Inventor Byung-Hoon NA

Byung-Hoon NA 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).

  • Patent number: 10666249
    Abstract: A semiconductor package including a first master-slave status circuit configured to store one of a first signal or a second signal independently from a second master-slave status circuit, store the first signal in response to receiving a first initial signal from a first initialization circuit, the second master-slave status circuit configured to store one of the first signal or the second signal, store the first signal in response to receiving a second initial signal from a second initialization circuit, the first initialization circuit configured to provide the first initial signal to the first master-slave status circuit, the second initialization circuit configured to provide the second initial signal to the second master-slave status circuit, and a first master-slave determination circuit connected to the second master-slave status circuit, the first master-slave determination circuit configured to provide the second signal to the second master-slave status circuit may be provided.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: May 26, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae Hoon Na, Seon Kyoo Lee, Jeong Don Ihm, Byung Hoon Jeong, Young Don Choi
  • Patent number: 10555885
    Abstract: The present invention relates to a low-viscosity cosmetic composition and methods using a natural emulsifying agent. More specifically, the present invention relates to a cosmetic composition using a naturally derived saccharide-based surfactant in place of a chemical surfactant and realizing a low-viscosity formulation to offer safety to the skin, feel good on the skin with fast absorption, give stability to the formulation and add luster to the skin in an effective manner.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: February 11, 2020
    Assignee: AMOREPACIFIC CORPORATION
    Inventors: Byung Ryol Paik, Hui Kyoung Chang, Myeong Ryeol Lee, Yong Joo Na, Lee Kyoung Kwon, Young So Kim, Sang Hoon Han
  • Publication number: 20200014383
    Abstract: A semiconductor package including a first master-slave status circuit configured to store one of a first signal or a second signal independently from a second master-slave status circuit, store the first signal in response to receiving a first initial signal from a first initialization circuit, the second master-slave status circuit configured to store one of the first signal or the second signal, store the first signal in response to receiving a second initial signal from a second initialization circuit, the first initialization circuit configured to provide the first initial signal to the first master-slave status circuit, the second initialization circuit configured to provide the second initial signal to the second master-slave status circuit, and a first master-slave determination circuit connected to the second master-slave status circuit, the first master-slave determination circuit configured to provide the second signal to the second master-slave status circuit may be provided.
    Type: Application
    Filed: November 30, 2018
    Publication date: January 9, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dae Hoon NA, Seon Kyoo LEE, Jeong Don IHM, Byung Hoon JEONG, Young Don CHOI
  • Patent number: 10438635
    Abstract: An apparatus includes data transmitter having first through N-th data drivers configured to provide first through N-th data signals, respectively, and a strobe driver configured to provide a strobe signal, and a data receiver having a strobe buffer configured to generate a control signal based on the strobe signal, and first through N-th sense amplifiers configured to sense N-bit data based on the control signal, a reference signal and the first through N-th data signals. The bus includes a strobe TSV configured to connect the strobe driver with the strobe buffer, and first through N-th data TSVs configured to connect the first through N-th data drivers with the first through N-th sense amplifiers, respectively. A reference signal supplier controls the reference signal such that a discharge speed of the reference signal is slower than a discharge speed of each of the first through N-th data signals during data transmission.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 8, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon-Kyoo Lee, Dae-Hoon Na, Jeong-Don Ihm, Byung-Hoon Jeong, Young-Don Choi
  • Publication number: 20190198067
    Abstract: An apparatus includes data transmitter having first through N-th data drivers configured to provide first through N-th data signals, respectively, and a strobe driver configured to provide a strobe signal, and a data receiver having a strobe buffer configured to generate a control signal based on the strobe signal, and first through N-th sense amplifiers configured to sense N-bit data based on the control signal, a reference signal and the first through N-th data signals. The bus includes a strobe TSV configured to connect the strobe driver with the strobe buffer, and first through N-th data TSVs configured to connect the first through N-th data drivers with the first through N-th sense amplifiers, respectively. A reference signal supplier controls the reference signal such that a discharge speed of the reference signal is slower than a discharge speed of each of the first through N-th data signals during data transmission.
    Type: Application
    Filed: August 27, 2018
    Publication date: June 27, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seon-Kyoo LEE, Dae-Hoon NA, Jeong-Don IHM, Byung-Hoon JEONG, Young-Don CHOI
  • Patent number: 9190545
    Abstract: An optical device is provided including an active layer having two outer barriers and a coupled quantum well between the two outer barriers. The coupled quantum well includes a first quantum well layer, a second quantum well layer, a third quantum well layer, a first coupling barrier between the first quantum well layer and the second quantum well layer, and a second coupling barrier between the second quantum well layer and the third quantum well layer. A thickness of the first quantum well layer and a thickness of the third quantum well layer are each different from a thickness of the second quantum well layer. Also, an energy level of the first quantum well layer and an energy level of the third quantum well layer are each different from an energy level of the second quantum well layer.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: November 17, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong-chul Cho, Yong-tak Lee, Chang-young Park, Byung-hoon Na, Yong-hwa Park, Gun-wu Ju
  • Patent number: 9082909
    Abstract: Provided is an optical device which includes an active layer which includes at least two outer barriers and at least one coupled quantum well, each of the at least one coupled quantum well is sandwiched between the at least two outer barriers. Each of the at least one coupled quantum well includes at least three quantum well layers and at least two coupling barriers interposed between the at least three quantum layers. The at least two coupling barriers have a potential energy which is higher than a ground level and is lower than energy levels of the at least two outer barriers.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: July 14, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong-chul Cho, Yong-tak Lee, Chang-young Park, Byung-hoon Na, Yong-hwa Park, Gun-wu Ju, Hee-ju Chio
  • Patent number: 9051178
    Abstract: A transmissive light modulator including a first reflection layer; a first active layer, arranged on the first reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; a second reflection layer arranged on the first active layer; a second active layer, arranged on the second reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; and a third reflection layer arranged on the second active layer, wherein the first reflection layer and the third reflection layer are each doped with a first type dopant, and the second reflection layer is doped with a second type dopant, which is electrically opposite to the first type dopant.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 9, 2015
    Assignees: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul Cho, Yong-tak Lee, Jang-woo You, Byung-hoon Na, Yong-hwa Park, Chang-young Park, Hee-ju Chio, Gun-wu Ju
  • Publication number: 20150153628
    Abstract: An optical modulator includes: a bottom reflective layer; an active layer which is disposed on the bottom reflective layer and includes a multiple quantum well layer; and a top reflective layer which is disposed on the active layer, the top reflective layer including a first top reflective layer which is disposed on the active layer, a first cavity layer which is disposed on the first top reflective layer, a second top reflective layer which is disposed on the first cavity layer, a second cavity layer which is disposed on the second top reflective layer, and a third top reflective layer which is disposed on the second cavity layer. When a center wavelength of an incident light to be modulated is ?, the active layer and the first and second cavity layers have an optical thickness that is an integer multiple of ?/2 to provide an individual resonant cavity.
    Type: Application
    Filed: February 12, 2015
    Publication date: June 4, 2015
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Chul CHO, Yong-Tak LEE, Yong-Hwa PARK, Byung-Hoon NA
  • Publication number: 20150138620
    Abstract: A transmissive image modulator for allowing image modulation over a wide bandwidth with multiple Fabry-Perot resonant modes and multiple absorption modes is provided. The transmissive image modulator includes a lower reflection layer; an active layer disposed on the lower reflection layer, including multiple quantum well layers and multiple barrier layers; an upper reflection layer disposed on the active layer; and at least one micro-cavity layer disposed in at least one of the lower and upper reflection layer. The active layer and the at least one micro-cavity layer have thicknesses of a multiple of ?/2, where ? is a resonant wavelength.
    Type: Application
    Filed: December 16, 2014
    Publication date: May 21, 2015
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul CHO, Yong-tak LEE, Byung-hoon NA, Chang-young PARK, Yong-hwa PARK, Jang-woo YOU, Hee-ju CHOI
  • Publication number: 20150123077
    Abstract: An optical device is provided including an active layer having two outer barriers and a coupled quantum well between the two outer barriers. The coupled quantum well includes a first quantum well layer, a second quantum well layer, a third quantum well layer, a first coupling barrier between the first quantum well layer and the second quantum well layer, and a second coupling barrier between the second quantum well layer and the third quantum well layer. A thickness of the first quantum well layer and a thickness of the third quantum well layer are each different from a thickness of the second quantum well layer. Also, an energy level of the first quantum well layer and an energy level of the third quantum well layer are each different from an energy level of the second quantum well layer.
    Type: Application
    Filed: May 21, 2014
    Publication date: May 7, 2015
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul CHO, Yong-tak LEE, Chang-young PARK, Byung-hoon NA, Yong-hwa PARK, Gun-wu JU
  • Publication number: 20140191196
    Abstract: Provided is an optical device which includes an active layer which includes at least two outer barriers and at least one coupled quantum well, each of the at least one coupled quantum well is sandwiched between the at least two outer barriers. Each of the at least one coupled quantum well includes at least three quantum well layers and at least two coupling barriers interposed between the at least three quantum layers. The at least two coupling barriers have a potential energy which is higher than a ground level and is lower than energy levels of the at least two outer barriers.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul CHO, Yong-tak LEE, Chang-young PARK, Byung-hoon NA, Yong-hwa PARK, Gun-wu JU, Hee-ju CHIO
  • Patent number: 8492863
    Abstract: Optical modulator having wide bandwidth based on Fabry-Perot resonant reflection is disclosed. The optical modulator includes: a bottom Distributed Bragg Reflector (DBR) layer; a top DBR layer including at least one layer, and a modified layer; and an active layer disposed between bottom and top DBR layers, wherein the at least one layer includes at least one pair of a first refractive index layer having a first refractive index and a second refractive index layer having a second refractive index, the modified layer includes at least one pair of a third refractive index layer having a third refractive index and a fourth refractive index layer having a fourth refractive index, the third and the fourth refractive indexes being different, and at least one of the third and the fourth refractive index layers has a second optical thickness that is not ?/4 or that is not an odd multiple thereof.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: July 23, 2013
    Assignees: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: Yong-chul Cho, Yong-tak Lee, Yong-hwa Park, Byung-hoon Na, Kwang-mo Park, Chang-soo Park
  • Publication number: 20130175500
    Abstract: A transmissive light modulator including a first reflection layer; a first active layer, arranged on the first reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; a second reflection layer arranged on the first active layer; a second active layer, arranged on the second reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; and a third reflection layer arranged on the second active layer, wherein the first reflection layer and the third reflection layer are each doped with a first type dopant, and the second reflection layer is doped with a second type dopant, which is electrically opposite to the first type dopant.
    Type: Application
    Filed: September 14, 2012
    Publication date: July 11, 2013
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul CHO, Yong-tak LEE, Jang-woo YOU, Byung-hoon NA, Yong-hwa PARK, Chang-young PARK, Hee-ju CHIO, Gun-wu JU
  • Patent number: 8432599
    Abstract: An optical image modulator and a method of manufacturing the same. The optical image modulator includes a substrate, an N electrode contact layer formed on the substrate, a lower distributed Bragg reflection (DBR) layer, a quantum well layer, an upper DBR layer, and a P electrode contact layer sequentially stacked on the N electrode contact layer, a P electrode formed on the P electrode contact layer, and an N electrode formed on the N electrode contact layer. The N electrode is a frame that surrounds the lower DBR layer.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: April 30, 2013
    Assignees: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: Yong-Chul Cho, Yong-Tak Lee, Yong-Hwa Park, Byung-Hoon Na, Bong-Kyu Jeong
  • Publication number: 20120162380
    Abstract: An optical modulator that performs wide bandwidth optical modulation by using multiple Fabry-Perot resonant modes, and an apparatus for capturing a three-dimensional image including the optical modulator are provided. The optical modulator may include: a substrate; a first contact layer disposed on the substrate; a bottom distributed Bragg reflective (DBR) layer disposed on the first contact layer; an active layer disposed on the bottom DBR layer and includes a multiple quantum well layer; a top DBR layer disposed on the active layer; a cavity layer disposed in the top DBR layer; and a second contact layer disposed on the top DBR layer. Since the optical modulator achieves both a high contrast ratio and a wide bandwidth by using two or more Fabry-Perot resonant modes, the optical modulator may show a stable performance even when a resonant wavelength is changed during manufacture or due to an external environment such as temperature.
    Type: Application
    Filed: June 17, 2011
    Publication date: June 28, 2012
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul CHO, Yong-Tak LEE, Yong-Hwa PARK, Byung-Hoon NA
  • Publication number: 20120140309
    Abstract: An optical image modulator and a method of manufacturing the same. The optical image modulator includes a substrate, an N electrode contact layer formed on the substrate, a lower distributed Bragg reflection (DBR) layer, a quantum well layer, an upper DBR layer, and a P electrode contact layer sequentially stacked on the N electrode contact layer, a P electrode formed on the P electrode contact layer, and an N electrode formed on the N electrode contact layer. The N electrode is a frame that surrounds the lower DBR layer.
    Type: Application
    Filed: June 23, 2011
    Publication date: June 7, 2012
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Chul CHO, Yong-Tak LEE, Yong-Hwa PARK, Byung-Hoon NA, Bong-Kyu JEONG
  • Publication number: 20110181936
    Abstract: Optical modulator having wide bandwidth based on Fabry-Perot resonant reflection is disclosed. The optical modulator includes: a bottom Distributed Bragg Reflector (DBR) layer; a top DBR layer including at least one layer, and a modified layer; and an active layer disposed between bottom and top DBR layers, wherein the at least one layer includes at least one pair of a first refractive index layer having a first refractive index and a second refractive index layer having a second refractive index, the modified layer includes at least one pair of a third refractive index layer having a third refractive index and a fourth refractive index layer having a fourth refractive index, the third and the fourth refractive indexes being different, and at least one of the third and the fourth refractive index layers has a second optical thickness that is not ?/4 or that is not an odd multiple thereof.
    Type: Application
    Filed: November 2, 2010
    Publication date: July 28, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong-Chul CHO, Yong-Tak LEE, Yong-Hwa PARK, Byung-Hoon NA, Kwang-Mo PARK, Chang-Soo PARK