Patents by Inventor Dong Kyu Park
Dong Kyu 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).
-
Patent number: 10038947Abstract: An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted.Type: GrantFiled: October 24, 2014Date of Patent: July 31, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-bae Kim, Dae-joung Kim, Dong-kyu Park, Sung-ha Son, Gyeong-tae Lee, Joo-yeon Lee, Jong-in Jo, Sung-joo Kim, Dong-hyun Jung, Seon-ho Hwang, Dae-kyung Ahn, Sang-sung Woo, Sang-min Hyun
-
Publication number: 20180132041Abstract: A planar magnet speaker with excellent sound reproduction in a low frequency range and capable of providing a plurality of input controls includes a first magnet member, a second magnet member, a membrane including at least one wire formed between the first magnet member and the second magnet member, and a support frame.Type: ApplicationFiled: October 3, 2017Publication date: May 10, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-hyun LIM, Dong-kyu PARK, Hae-kwang PARK, Joon-ho SON, Dong-hyun JUNG, Han-ki KIM, Young-suk SONG
-
Publication number: 20180007468Abstract: An acoustic output device and a control method thereof are provided.Type: ApplicationFiled: May 26, 2017Publication date: January 4, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-hyun JUNG, Dong-kyu PARK, Yoon-jae LEE, Young-suk SONG, Woo-jung LEE, Hae-kwang PARK
-
Patent number: 9848259Abstract: A loudspeaker includes an enclosure including a resonance chamber and an acoustic emission aperture for communication of the resonance chamber with the outside, and a plurality of speaker units including a first speaker unit arranged in a first direction and a second speaker unit arranged in a second direction, and the plurality of speakers being accommodated in the enclosure in a non-coaxial arrangement. Front slit spaces of the plurality of speaker units are in communication with the resonance chamber.Type: GrantFiled: January 29, 2016Date of Patent: December 19, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Gyeong-tae Lee, Jong-bae Kim, Dong-kyu Park, Sung-ha Son
-
Publication number: 20170055069Abstract: A loudspeaker includes an enclosure including a resonance chamber and an acoustic emission aperture for communication of the resonance chamber with the outside, and a plurality of speaker units including a first speaker unit arranged in a first direction and a second speaker unit arranged in a second direction, and the plurality of speakers being accommodated in the enclosure in a non-coaxial arrangement. Front slit spaces of the plurality of speaker units are in communication with the resonance chamber.Type: ApplicationFiled: January 29, 2016Publication date: February 23, 2017Inventors: Gyeong-tae LEE, Jong-bae KIM, Dong-kyu PARK, Sung-ha SON
-
Patent number: 9485565Abstract: A sound generating apparatus is provided for expanding a mid-range of a slit-firing type speaker system. The sound generating apparatus includes a vibrator, a body part which encloses the vibrator, a path through which the generated sound is transmitted, and a slit formed in a length direction of the body part connected to an end portion of the path and configured to emit the sound.Type: GrantFiled: June 20, 2014Date of Patent: November 1, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gyeong-tae Lee, Jong-bae Kim, Dong-kyu Park, Jong-in Jo, Seung-chan Lee, Sang-min Hyun
-
Publication number: 20160192063Abstract: A display apparatus includes a display device configured to display a video data; and a plurality of integrated speakers configured to output at least one audio signal in a low-pitched tone band and at least one audio signal in a middle and high-pitched tone band. The plurality of integrated speakers may each include: a woofer speaker configured to output a first audio signal among the at least one audio signal in the low-pitched tone band; and at least one front speaker that is adjacent to the woofer speaker and configured to output a second audio signal among the at least one audio signal in the middle and high-pitched tone band.Type: ApplicationFiled: July 7, 2014Publication date: June 30, 2016Applicant: Samsung Electronics Co., Ltd.Inventors: Gyeong-tae LEE, Jong-bae KIM, Dong-kyu PARK, Sung-ha SON
-
Patent number: 9068068Abstract: The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r1r2<1 (herein, r1=k11/k12, r2=k22/k21, k11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.Type: GrantFiled: November 6, 2013Date of Patent: June 30, 2015Assignee: LG Chem, Ltd.Inventors: Choong-Hoon Lee, Jong-Chan Lee, Dong-Kyu Park, Yang-Kee Kim, Jong-Joo Ha, Byung-Kwon Lim, Kyung-Seok Min, Don-Ho Kum
-
Publication number: 20150117686Abstract: An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted.Type: ApplicationFiled: October 24, 2014Publication date: April 30, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-bae KIM, Dae-joung KIM, Dong-kyu PARK, Sung-ha SON, Gyeong-tae LEE, Joo-yeon LEE, Jong-in JO, Sung-joo KIM, Dong-hyun JUNG, Seon-ho HWANG, Dae-kyung AHN, Sang-sung WOO, Sang-min HYUN
-
Patent number: 8946362Abstract: The present invention relates to a preparation method of olefin polymers using a catalyst composition containing a transition metal compound. In detail, the present invention provides a preparation method of olefin polymer using a catalyst composition comprising a transition metal compound, wherein the preparation method comprises introducing a scavenger to a continuous solution polymerization reactor in a specific range of amount to give the olefin polymer with good productivity.Type: GrantFiled: May 13, 2009Date of Patent: February 3, 2015Assignee: LG Chem, Ltd.Inventors: Don-Ho Kum, Eun-Jung Lee, Dong-Kyu Park, Choong-Hoon Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Seong-Jin Kim
-
Publication number: 20150010190Abstract: A sound generating apparatus is provided for expanding a mid-range of a slit-firing type speaker system. The sound generating apparatus includes a vibrator, a body part which encloses the vibrator, a path through which the generated sound is transmitted, and a slit formed in a length direction of the body part connected to an end portion of the path and configured to emit the sound.Type: ApplicationFiled: June 20, 2014Publication date: January 8, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gyeong-tae LEE, Jong-bae KIM, Dong-kyu PARK, Jong-in JO, Seung-chan LEE, Sang-min HYUN
-
Patent number: 8774058Abstract: Provided is a network system and a method for determining a network path, the network system including a plurality of extension units, each containing dualized basic units and dualized extension Ethernet modules, a first ring network connected by a first basic unit and a plurality of first extension Ethernet modules, and a second ring network connected by a second basic unit and a plurality of second extension Ethernet modules, wherein the first extension Ethernet module or the second extension Ethernet module transmits or receives data along a network path determined by judging, by the first extension Ethernet module or the second extension Ethernet module, if the first ring network is connected to the second extension Ethernet module using an intrinsic number of each extension Ethernet module.Type: GrantFiled: September 14, 2012Date of Patent: July 8, 2014Assignee: LSIS Co., Ltd.Inventors: Soo Gang Lee, Dong Kyu Park
-
Patent number: 8759466Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.Type: GrantFiled: July 30, 2013Date of Patent: June 24, 2014Assignee: LG Chem, Ltd.Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
-
Patent number: 8748547Abstract: The present invention relates to an ethylene ?-olefin copolymer having a narrower molecular weight distribution, and a uniform distribution of comonomer. The ethylene ?-olefin copolymer according to the present invention has a uniform comonomer distribution and exhibits a lower density in the same comonomer content, unlike conventional ethylene copolymers having a random or blocky comonomer distribution.Type: GrantFiled: May 7, 2008Date of Patent: June 10, 2014Assignee: LG Chem, Ltd.Inventors: Dong-Kyu Park, Byung-Kwon Lim, Jong-Joo Ha, Don-Ho Kum, Yang-Kee Kim, Choong-Hoon Lee, Seung-Whan Jung
-
Patent number: 8742049Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.Type: GrantFiled: July 30, 2013Date of Patent: June 3, 2014Assignee: LG Chem, Ltd.Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
-
Publication number: 20140066562Abstract: The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r1r2<1 (herein, r1=k11/k12, r2=k22/k21, k11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.Type: ApplicationFiled: November 6, 2013Publication date: March 6, 2014Applicant: LG CHEM, LTD.Inventors: Choong-Hoon Lee, Jong-Chan Lee, Dong-Kyu Park, Yang-Kee Kim, Jong-Joo Ha, Byung-Kwon Lim, Kyung-Seok Min, Don-Ho Kum
-
Patent number: 8630289Abstract: Disclosed is a switching device of a dual-port Ethernet system capable of solving a conflict caused by the dual-port in an Ethernet system having the dual-port. According to the present disclosure, there is little transmission delay when the data frame is relayed between ports in the dual-port Ethernet system. Further, when a frame relay transmission is simultaneously generated with a frame transmission of an upper layer device, it is possible to prevent a conflict by determining a priority.Type: GrantFiled: December 8, 2010Date of Patent: January 14, 2014Assignee: LS Industrial Systems Co., Ltd.Inventors: Dong Kyu Park, Dae Hyun Kwon
-
Patent number: 8604125Abstract: The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r1r2<1 (herein, r1=k11/k12, r2=k22/k21, k11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.Type: GrantFiled: June 23, 2009Date of Patent: December 10, 2013Assignee: LG Chem, Ltd.Inventors: Choong-Hoon Lee, Jong-Chan Lee, Dong-Kyu Park, Yang-Kee Kim, Jong-Joo Ha, Byung-Kwon Lim, Kyung-Seok Min, Don-Ho Kum
-
Publication number: 20130317186Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: LG CHEM, LTD.Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
-
Publication number: 20130317187Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: LG CHEM, LTD.Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park