Patents by Inventor Young-jun Park

Young-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).

  • Publication number: 20160172193
    Abstract: A method of controlling a growth crystallographic plane of a metal oxide semiconductor having a wurtzite crystal structure by using a thermal chemical vapor deposition method includes controlling a growth crystallographic plane by allowing the metal oxide semiconductor to grow in a non-polar direction by using a source material including a thermal decomposition material that reduces a surface energy of a polar plane of the metal oxide semiconductor.
    Type: Application
    Filed: February 24, 2016
    Publication date: June 16, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jun PARK, Jung-inn SOHN, Seung-nam CHA, Ji-yeon KU
  • Patent number: 9305778
    Abstract: A method of controlling a growth crystallographic plane of a metal oxide semiconductor having a wurtzite crystal structure by using a thermal chemical vapor deposition method includes controlling a growth crystallographic plane by allowing the metal oxide semiconductor to grow in a non-polar direction by using a source material including a thermal decomposition material that reduces a surface energy of a polar plane of the metal oxide semiconductor.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: April 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jun Park, Jung-inn Sohn, Seung-nam Cha, Ji-yeon Ku
  • Patent number: 9278996
    Abstract: The present invention provides a dolastatin-10 derivative having excellent anticancer activity, a method of producing the same and anticancer drug composition containing the same as an active ingredient.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: March 8, 2016
    Assignee: CELLTRION, INC.
    Inventors: Young Jun Park, Jin-kyo Jeong, Young Mi Choi, Min Seob Lee, Joon hun Choi, Eun Joo Cho, Hyunnam Song, Sung Jun Park, Jong-hyoup Lee, Seung Suh Hong
  • Patent number: 9225248
    Abstract: A synchronous direct current (DC)-DC buck converter and a method of controlling the waveforms of switching signals disclosed herein. The synchronous DC-DC buck converter generates a stepped-down output voltage using a first switch configured to apply an input voltage to an inductor and a second switch configured to switch in response to a second switching signal. The synchronous DC-DC buck converter includes a sawtooth generation unit, a driver oscillating signal generation unit, a switching signal generation unit, and a phase tracking unit. The sawtooth generation unit generates a sawtooth wave. The driver oscillating signal generation unit generates an error voltage between the output voltage and a reference voltage, and compares the sawtooth wave with the error voltage, so as to generate a driver oscillating signal. The switching signal generation unit generates each of the first and second switching signals. The phase tracking unit generates the frequency setting signal.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: December 29, 2015
    Assignee: Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Kang Yoon Lee, Hong Jin Kim, Young Jun Park, Jeong Ah Jang, Nak Young Ko, Dong Hyeon Seo
  • Publication number: 20150366990
    Abstract: The present invention relates to an antibody-linker-drug conjugate in which an antibody and a cytotoxic drug are conjugated through an enzyme cleavable peptide linker capable of directly binding to a lysine residue of an antibody, a preparation method therefor, and an anticancer drug composition containing the same as an active ingredient.
    Type: Application
    Filed: January 2, 2014
    Publication date: December 24, 2015
    Inventors: Young Jun PARK, Jin-kyo JEONG, Young Mi CHOI, Minseob LEE, Yeon Jung KIM, Kyoung Suk KIM, Joon hun CHOI, Jin Seo LEE, Eun Joo CHO, Hyunnam SONG, Sung Jun PARK, Jong-hyoup LEE, Matthew Sangyup LEE, In-Suk LEE, Joon woo KIN, Seung Suh HONG
  • Patent number: 9185664
    Abstract: A Base Station (BS) operation method for reducing load terminals based on load estimation of a neighbor cell in a wireless communication system includes receiving information for estimating a load of a neighbor BS, determining whether to determine the power control and handover terminal set using the number of terminals serviced by the neighbor BS, the number of overload terminals among the terminals serviced by the neighbor BS, and the backoff counter value, and, when it is determined to determine a power control and handover terminal set, deciding the power control and handover terminal set to minimize load terminals, based on the first power variation and the second power variation.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: November 10, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Young-Jun Park, Chung-Gu Kang, Hyon-Goo Kang, Ki-Young Han, Hye-Joong Kang
  • Patent number: 9160197
    Abstract: An apparatus for generating and storing electric energy, the apparatus including a fiber, an electric energy generation unit disposed on the fiber, and an electric energy storage unit disposed on the fiber.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: October 13, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., GEORGIA TECH RESEARCH CORPORATION
    Inventors: Young-jun Park, Jong-min Kim, Joon-ho Bae, Zhong-lin Wang
  • Patent number: 9147845
    Abstract: A single-walled carbon nanotube-based planar photodetector includes a substrate; a first electrode and a second electrode disposed on the substrate and spaced apart from each other; a plurality of single-walled carbon nanotubes, each of the plurality of single-walled carbon nanotubes contacting the first electrode and the second electrode; and an adsorbent attached to a surface of at least one of the plurality of single-walled carbon nanotubes, wherein the adsorbent is capable of doping the at least one of the plurality of single-walled carbon nanotubes by photo-excitation.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 29, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Young-jun Park, Steve Park, Zhenan Bao
  • Publication number: 20150263625
    Abstract: A synchronous direct current (DC)-DC buck converter and a method of controlling the waveforms of switching signals disclosed herein. The synchronous DC-DC buck converter generates a stepped-down output voltage using a first switch configured to apply an input voltage to an inductor and a second switch configured to switch in response to a second switching signal. The synchronous DC-DC buck converter includes a sawtooth generation unit, a driver oscillating signal generation unit, a switching signal generation unit, and a phase tracking unit. The sawtooth generation unit generates a sawtooth wave. The driver oscillating signal generation unit generates an error voltage between the output voltage and a reference voltage, and compares the sawtooth wave with the error voltage, so as to generate a driver oscillating signal. The switching signal generation unit generates each of the first and second switching signals. The phase tracking unit generates the frequency setting signal.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Kang Yoon LEE, Hong Jin KIM, Young Jun PARK, Jeong Ah JANG, Nak Young KO, Dong Hyeon SEO
  • Patent number: 9114526
    Abstract: The invention relates to an industrial robot having an apparatus for driving an attachable/detachable four-bar link mechanism, comprising: a base frame having a rotating joint for a robot body; a pivot frame which is coupled to the rotating joint and which has a rotating joint; a column frame which is coupled to the rotating joint of the pivot frame, and which has a straight-line joint; a motor arranged in the pivot frame to rotate the column frame; a decelerator attachably/detachably mounted on the rotating joint of the pivot frame or directly on the pivot frame to receive driving force from the motor; and a four-bar link installed between an output shaft of the decelerator and the column frame.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: August 25, 2015
    Assignee: Samsung Heavy Ind. Co., Ltd.
    Inventors: Hie Yong Jeong, Dong Soo Kang, Eun Jung Kim, Young Jun Park
  • Patent number: 9112432
    Abstract: Provided are flexible piezoelectric generators and methods of manufacturing the same. The piezoelectric generator includes a first insulation layer disposed on a first electrode, a piezoelectric structure disposed on the first insulation layer, a second insulation layer disposed on the piezoelectric structure, and a second electrode disposed on the second insulation layer.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 18, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., GEORGIA TECH RESEARCH CORPORATION
    Inventors: Young-jun Park, Zhong-lin Wang, Sang-min Lee
  • Publication number: 20150225455
    Abstract: The present invention provides a dolastatin-10 derivative having excellent anticancer activity, a method of producing the same and anticancer drug composition containing the same as an active ingredient.
    Type: Application
    Filed: September 16, 2013
    Publication date: August 13, 2015
    Applicant: CELLTRION, INC.
    Inventors: Young Jun Park, Jin-kyo Jeong, Young Mi Choi, Min Seob Lee, Joon hun Choi, Eun Joo Cho, Hyunnam Song, Sung Jun Park, Jong-hyoup Lee, Seung Suh Hong
  • Publication number: 20150174664
    Abstract: The purpose of the present invention is to provide a cutting insert which can minimize friction with a chip and maximize heat-radiating performance. To this end, the present invention provides a cutting insert comprising: an upper surface; a lower surface; a plurality of lateral surfaces for connecting the upper surface with the lower surface; a main cutting edge formed between the lateral surface and the upper surface; and a main cutting edge land and a main cutting edge incline formed in series between the main cutting edge and the upper surface, wherein the main cutting edge incline has a first wavy shape in which two or more incline convex parts and two or more incline concave parts are repeated from the main cutting edge land toward the upper surface.
    Type: Application
    Filed: April 23, 2013
    Publication date: June 25, 2015
    Applicant: KORLOY INC.
    Inventors: Ki-Chan Nam, Wook-Jung Sung, Sang-Yong Lee, Young-Jun Park
  • Publication number: 20150155508
    Abstract: Example embodiments relate to a solar cell including organic nanowires. The solar cell may include a photoelectric conversion layer formed of a p-type material including an organic material and an n-type material including organic nanowires.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Young-jun PARK, Zhenan BAO, Joon-hak OH
  • Publication number: 20150139745
    Abstract: The present invention relates to a cutting insert. The cutting insert, according to one embodiment of the present invention, comprises: a top surface; a bottom surface; side surfaces which connect the top surface and the bottom surface to each other; a hole which penetrates the top surface and the bottom surface; and cutting edges which are defined by the top surface and the side surfaces, wherein a main cutting edge side surface among the side surfaces is provided with a first relief surface, a transition surface extending from the first relief surface, and a second relief surface extending from the transition surface, the first relief surface is formed such that the relief angle or the relief surface width varies along the cutting edge, and the transition surface is provided with a plurality of ridges in order to reinforce the rigidity of the cutting edge.
    Type: Application
    Filed: April 22, 2013
    Publication date: May 21, 2015
    Applicant: KORLOY INC.
    Inventors: Sang-Yong Lee, Ki-Chan Nam, Wook-Jung Sung, Young-Jun Park, Dong-Bok Park
  • Publication number: 20150061464
    Abstract: Provided are an energy harvester using a mass, and a mobile device including the energy harvester. The energy harvester includes: a mass; first and second substrates spaced apart from each other, wherein one of the first and second substrates is connected to the mass; first and second electrodes provided on the first and second substrates; and an energy generator provided between the first and second electrodes, wherein the energy generator generates electric energy upon a relative movement between the first substrate and the second substrate caused by a movement of the mass.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 5, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jun PARK, Jin S. HEO
  • Patent number: 8953243
    Abstract: An anti-reflection structure using surface plasmons and a high-k dielectric material, and a method of manufacturing the anti-reflection structure. The anti-reflection structure may include a high-k dielectric layer formed on a substrate, the high-k dielectric layer configured to allow incident light to pass therethrough, and a nano-material layer on the high-k dielectric layer. The high-k dielectric layer may include at least one of zirconium oxide (ZrO2), hafnium oxide (HfO2), titanium oxide (TiO2), tantalum oxide (Ta2O5), lanthanum oxide (La2O3), yttrium oxide (Y2O3) and aluminum oxide (Al2O3).
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Jun Park, Jong-min Kim, Huamin Li, Won-Jong Yoo
  • Publication number: 20150001993
    Abstract: Provided are an energy harvester using a mass, and a mobile device including the energy harvester. The mobile device includes an energy harvester connected to a mobile device body to generate electric energy. The energy harvester includes an energy generator configured to generate electric energy by using a mechanical force applied by a movement of the mobile device body.
    Type: Application
    Filed: November 14, 2013
    Publication date: January 1, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jun PARK, Jin S. HEO
  • Patent number: 8897336
    Abstract: A communication apparatus and method for operating a communication apparatus are provided. The communication apparatus is configured to determine whether a sub-frequency band causing interference is present among sub-frequency bands included in a reception frequency band group, and to send to another communication apparatus an interference avoidance request signal which requests the other communication apparatus to transmit signals by use of remaining sub-frequency bands except the sub-frequency band causing interference, leading to simpler and more efficient interference avoidance.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: November 25, 2014
    Assignee: Pantech Co., Ltd.
    Inventor: Young-Jun Park
  • Patent number: 8885238
    Abstract: A light position controlling apparatus and a method of manufacturing the same. The light position controlling apparatus includes a substrate; first and second electrodes that are arranged on the substrate and configured to generate an electric field; and a piezoelectric nano wire configured to operate as optical waveguide. The piezoelectric nano wire includes a first portion disposed on the substrate, and a second portion that extends from the first portion and bends according to the electric field generated by the first and second electrodes to change a travel direction of light transmitted by the piezoelectric nano wire.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: November 11, 2014
    Assignees: Samsung Electronics Co., Ltd., Georgia Tech Research Corporation
    Inventors: Seung-nam Cha, Young-jun Park, Zhong Lin Wang, Min-baek Lee