Patents by Inventor Soon-Wook Hwang

Soon-Wook Hwang 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: 11331950
    Abstract: A non-pneumatic tire comprises: a band part including an inner band and an outer band, the outer band being separated from the inner band by a predetermined distance to surround the inner band; and a spoke part provided to extend in a circumferential direction of the tire between the inner band and the outer band, the spoke part including one or more holes when viewed in the circumferential direction and one or more holes when viewed in an axial direction of the tire.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: May 17, 2022
    Assignee: Kumho Tire Co., Inc.
    Inventors: Soon Wook Hwang, Kee Woon Kim, Chui Woo Kwark, Chang Jung Park
  • Patent number: 11059326
    Abstract: A rim for a non-pneumatic tire comprises a cylindrical rim wall portion, and a fixing member disposed to be spaced apart from the rim wall portion in a radial direction. The rim wall portion is provided with a fixing protrusion protruding in the radial direction or a fixing groove depressed in the radial direction.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: July 13, 2021
    Assignee: KUMHO TIRE CO., INC.
    Inventors: Soon Wook Hwang, Kee Woon Kim, Chul Woo Kwark, Gwi Seong Shin, Chang Jung Park
  • Patent number: 10960708
    Abstract: A semi-pneumatic tire includes a tread portion configured to make contact with a road surface, a non-pneumatic portion coupled to an inner circumferential surface of the tread portion. The semi-pneumatic tire further includes a pneumatic portion coupled to an inner circumferential surface of the non-pneumatic portion and provided with a space into which an air is filled, and bonding layers respectively interposed between the tread portion and the non-pneumatic portion and between the non-pneumatic portion and the pneumatic portion. The non-pneumatic portion includes a band portion including an inner band coupled to an outer circumferential surface of the pneumatic portion and an outer band spaced apart from the inner band and surrounding an outer circumferential surface of the inner band, and spokes provided between the inner band and the outer band to connect the inner band and the outer band.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 30, 2021
    Assignee: KUMHO TIRE CO., INC.
    Inventors: Chul-Woo Kwark, Kee-Woon Kim, Chang-Jung Park, Gwi-Sung Shin, Soon-Wook Hwang
  • Publication number: 20210039438
    Abstract: The present invention relates to a composition for a non-pneumatic tire spoke. In particular, the non-pneumatic tire spoke prepared from the composition for a non-pneumatic tire spoke has excellent mechanical properties. A composition for a non-pneumatic tire spoke includes a thermoplastic polyester elastomer, a silane-based interfacial binder, and silica particles. The silica particles have an average particle diameter of 100 to 300 ?m.
    Type: Application
    Filed: November 7, 2018
    Publication date: February 11, 2021
    Inventors: Kee Woon KIM, Gwi Seong SHIN, Chul Woo KWARK, Soon Wook HWANG, Bumjoon KIM, Jin-Seong KIM, Joonhyeong CHOI, Sung Keun PARK
  • Publication number: 20210039439
    Abstract: A non-pneumatic tire comprises: a band part including an inner band and an outer band, the outer band being separated from the inner band by a predetermined distance to surround the inner band; and a spoke part provided to extend in a circumferential direction of the tire between the inner band and the outer band, the spoke part including one or more holes when viewed in the circumferential direction and one or more holes when viewed in an axial direction of the tire.
    Type: Application
    Filed: November 20, 2019
    Publication date: February 11, 2021
    Inventors: Soon Wook HWANG, Kee Woon KIM, Chul Woo KWARK, Chang Jung PARK
  • Patent number: 10814572
    Abstract: A method of manufacturing an airless tire including a spoke unit includes a first step of injection-molding a first spoke part, a second spoke part, a third spoke part and a fourth spoke part in a disc-like shape. The method further includes a second step of forming a first spoke by fusing the first spoke part and the second spoke part. The method further includes a third step of forming a second spoke by fusing the third spoke part and the fourth spoke part, and a fourth step of forming the spoke unit by fusing the first spoke and the second spoke.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 27, 2020
    Assignee: KUMHO TIRE CO., INC.
    Inventors: Gwi Seong Shin, Kee Woon Kim, Soon Wook Hwang, Chul Woo Kwark
  • Patent number: 10654318
    Abstract: In view of the above, the disclosure provides a non-pneumatic tire capable of enhancing a load supporting performance and a shock absorbing effect and improving a braking and traction performance. The present disclosure provides a non-pneumatic tire comprising a band part and a spoke part; where, a band part includes an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and where, a spoke part includes a plurality of first spokes that is arranged in a circumferential direction between the inner band and the outer band and connects the inner band and the outer band. Furthermore, according to another embodiment, a spoke part may include second spokes that connected to first spokes adjacent to each other at wherein first embodiment.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: May 19, 2020
    Assignees: KUMHO TIRE CO., INC., THE YOKOHAMA RUBBER COMPANY, LTD.
    Inventors: Kee-Woon Kim, Chang-Jung Park, Chul-Woo Kwark, Gwi-Sung Shin, Soon-Wook Hwang, Michio Shimizu, Jun Matsuda
  • Patent number: 10538130
    Abstract: A non-pneumatic tire includes a band part, including an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and a spoke part, extending in a circumferential direction between the inner band and the outer band, having a circumferential cross section having one or more holes.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 21, 2020
    Assignees: KUMHO TIRE CO., INC., THE YOKOHAMA RUBBER COMPANY, LTD.
    Inventors: Kee-Woon Kim, Chul-Woo Kwark, Chang-Jung Park, Gwi-Sung Shin, Soon-Wook Hwang, Michio Shimizu, Jun Matsuda
  • Publication number: 20190152256
    Abstract: A rim for a non-pneumatic tire comprises a cylindrical rim wall portion, and a fixing member disposed to be spaced apart from the rim wall portion in a radial direction. The rim wall portion is provided with a fixing protrusion protruding in the radial direction or a fixing groove depressed in the radial direction.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 23, 2019
    Inventors: Soon Wook HWANG, Kee Woon KIM, Chul Woo KWARK, Gwi Seong SHIN, Chang Jung PARK
  • Publication number: 20190143619
    Abstract: A method of manufacturing an airless tire including a spoke unit includes a first step of injection-molding a first spoke part, a second spoke part, a third spoke part and a fourth spoke part in a disc-like shape. The method further includes a second step of forming a first spoke by fusing the first spoke part and the second spoke part. The method further includes a third step of forming a second spoke by fusing the third spoke part and the fourth spoke part, and a fourth step of forming the spoke unit by fusing the first spoke and the second spoke.
    Type: Application
    Filed: February 14, 2018
    Publication date: May 16, 2019
    Inventors: Gwi Seong SHIN, Kee Woon KIM, Soon Wook HWANG, Chul Woo KWARK
  • Publication number: 20180290492
    Abstract: A semi-pneumatic tire includes a tread portion configured to make contact with a road surface, a non-pneumatic portion coupled to an inner circumferential surface of the tread portion. The semi-pneumatic tire further includes a pneumatic portion coupled to an inner circumferential surface of the non-pneumatic portion and provided with a space into which an air is filled, and bonding layers respectively interposed between the tread portion and the non-pneumatic portion and between the non-pneumatic portion and the pneumatic portion. The non-pneumatic portion includes a band portion including an inner band coupled to an outer circumferential surface of the pneumatic portion and an outer band spaced apart from the inner band and surrounding an outer circumferential surface of the inner band, and spokes provided between the inner band and the outer band to connect the inner band and the outer band.
    Type: Application
    Filed: September 19, 2017
    Publication date: October 11, 2018
    Inventors: Chul-Woo KWARK, Kee-Woon KIM, Chang-Jung PARK, Gwi-Sung SHIN, Soon-Wook HWANG
  • Publication number: 20180029419
    Abstract: A non-pneumatic tire includes a band part, including an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and a spoke part, extending in a circumferential direction between the inner band and the outer band, having a circumferential cross section having one or more holes.
    Type: Application
    Filed: July 7, 2017
    Publication date: February 1, 2018
    Inventors: Kee-Woon KIM, Chul-Woo KWARK, Chang-Jung PARK, Gwi-Sung SHIN, Soon-Wook HWANG, Michio SHIMIZU, Jun MATSUDA
  • Publication number: 20180029420
    Abstract: In view of the above, the disclosure provides a non-pneumatic tire capable of enhancing a load supporting performance and a shock absorbing effect and improving a braking and traction performance. The present disclosure provides a non-pneumatic tire comprising a band part and a spoke part; where, a band part includes an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and where, a spoke part includes a plurality of first spokes that is arranged in a circumferential direction between the inner band and the outer band and connects the inner band and the outer band. Furthermore, according to another embodiment, a spoke part may include second spokes that connected to first spokes adjacent to each other at wherein first embodiment.
    Type: Application
    Filed: May 17, 2017
    Publication date: February 1, 2018
    Inventors: Kee-Woon Kim, Chang-Jung Park, Chul-Woo Kwark, Gwi-Sung Shin, Soon-Wook Hwang, Michio Shimizu, Jun Matsuda
  • Patent number: 9732844
    Abstract: Disclosed is a transmission apparatus comprising: a sun gear connected to the input terminal; a plurality of first planetary gears engaging with an outer surface of the sun gear; a second planetary gear which forms a concentric circle with each first planetary gear, and which is integrally formed with the first planetary gears; a first ring gear engaging with outer surfaces of the first planetary gears and connected to the output terminal; a second ring gear engaging with an outer surface of the second planetary gear; a cage for supporting rotary shafts of the first and second planetary gears such that the first and second planetary gears can revolve about the sun gear; and a brake member.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: August 15, 2017
    Assignee: ADVANCED INSTITUTES OF CONVERGENCE TECHNOLOGY
    Inventors: Young Bong Bang, Soon Wook Hwang
  • Publication number: 20150094186
    Abstract: Disclosed is a transmission apparatus comprising: a sun gear connected to the input terminal; a plurality of first planetary gears engaging with an outer surface of the sun gear; a second planetary gear which forms a concentric circle with each first planetary gear, and which is integrally formed with the first planetary gears; a first ring gear engaging with outer surfaces of the first planetary gears and connected to the output terminal; a second ring gear engaging with an outer surface of the second planetary gear; a cage for supporting rotary shafts of the first and second planetary gears such that the first and second planetary gears can revolve about the sun gear; and a brake member.
    Type: Application
    Filed: April 8, 2013
    Publication date: April 2, 2015
    Inventors: Young Bong Bang, Soon Wook Hwang
  • Patent number: 8045387
    Abstract: A flash memory and programming method are disclosed. The flash memory includes a memory cell array having memory cells arranged in a plurality of word lines including a selected word line and a plurality of non-selected word lines and a plurality of bit lines, a high voltage generator generating a program voltage applied to the selected word line, and a pass voltage applied to at least one of the non-selected word lines adjacent to the selected word line, and control logic controlling the generation of the program voltage, such that the program voltage is incrementally increased during a program operation, and generation of the pass voltage, such that the program voltage is incrementally increased.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Tae Park, Yeong-Taek Lee, Soon-Wook Hwang, Young-Wook Jeong
  • Patent number: 8027199
    Abstract: An electrically erasable programmable non-volatile semiconductor memory device. The semiconductor memory device includes a memory cell array comprising a plurality of memory blocks, each memory block comprising a plurality of memory cells, a dummy memory cell, and a select gate transistor. Transfer transistors each having a current path connected between a corresponding wordline enable signal line and a corresponding wordline are controlled by an output of a block selection circuit. The transfer transistors include a dummy transfer transistor electrically coupled to the dummy memory cell, and configured to transmit a dummy wordline enable signal.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: September 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soon Wook Hwang, Ki Tae Park, Yeong Taek Lee
  • Publication number: 20100265769
    Abstract: An electrically erasable programmable non-volatile semiconductor memory device. The semiconductor memory device includes a memory cell array comprising a plurality of memory blocks, each memory block comprising a plurality of memory cells, a dummy memory cell, and a select gate transistor. Transfer transistors each having a current path connected between a corresponding wordline enable signal line and a corresponding wordline are controlled by an output of a block selection circuit. The transfer transistors include a dummy transfer transistor electrically coupled to the dummy memory cell, and configured to transmit a dummy wordline enable signal.
    Type: Application
    Filed: June 25, 2010
    Publication date: October 21, 2010
    Inventors: SOON WOOK HWANG, Ki Tae Park, Yeong Taek Lee
  • Patent number: 7755944
    Abstract: An electrically erasable programmable non-volatile semiconductor memory device. The semiconductor memory device includes a memory cell array comprising a plurality of memory blocks, each memory block comprising a plurality of memory cells, a dummy memory cell, and a select gate transistor. Transfer transistors each having a current path connected between a corresponding wordline enable signal line and a corresponding wordline are controlled by an output of a block selection circuit. The transfer transistors include a dummy transfer transistor electrically coupled to the dummy memory cell, and configured to transmit a dummy wordline enable signal.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: July 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soon-Wook Hwang, Ki-Tae Park, Yeong-Taek Lee
  • Publication number: 20100067305
    Abstract: A flash memory and programming method are disclosed. The flash memory includes a memory cell array having memory cells arranged in a plurality of word lines including a selected word line and a plurality of non-selected word lines and a plurality of bit lines, a high voltage generator generating a program voltage applied to the selected word line, and a pass voltage applied to at least one of the non-selected word lines adjacent to the selected word line, and control logic controlling the generation of the program voltage, such that the program voltage is incrementally increased during a program operation, and generation of the pass voltage, such that the program voltage is incrementally increased.
    Type: Application
    Filed: July 27, 2009
    Publication date: March 18, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-Tae PARK, Yeong-Taek LEE, Soon-Wook HWANG, Young-Wook JEONG