Patents by Inventor Cheol Hwan Yoon

Cheol Hwan Yoon 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: 11964594
    Abstract: A device for preventing rotation of a vehicle seat rail is described. The device prevents an upper rail on the center side of a vehicle from rotating when a forward load is applied to a vehicle seat, thereby preventing a lock plate from being fractured due to rotation of the upper rail.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 23, 2024
    Assignee: HYUNDAI TRANSYS INC.
    Inventors: Hwa Young Mun, Kyeong Ju Kim, Cheol Hwan Yoon, Jung Bin Lee, Jun Sik Hwang
  • Patent number: 11845365
    Abstract: Disclosed is a locking device for a walk-in seat of a vehicle capable of stably maintaining the locked state of the walk-in seat prior to a walk-in operation. An object of the present invention is to provide a locking device for a walk-in seat of a vehicle capable of stably maintaining the locked state of the walk-in seat prior to a walk-in operation (that is, the locked state of a drive plate for the walk-in operation of the seat) even if the engagement between the drive plate and a pawl is released due to deformation caused by a torsional load applied to a connection frame of the seat by additionally providing a separate component configured to prevent the drive plate from being rotated in an unlocking direction when a load is applied to a seat belt buckle.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: December 19, 2023
    Assignee: HYUNDAI TRANSYS INC.
    Inventors: Jun Sik Hwang, Hae Dong Kwak, Dong Hyun Kim, Cheol Hwan Yoon, Jung Bin Lee, Jae Yong Jang
  • Publication number: 20230347797
    Abstract: A vehicle seatback folding device includes: a cushion bracket; a back side frame rotating on the cushion bracket; a spring mounting bracket coupled to rotate integrally with the back side frame around a hinge-coupling part; a return spring for applying, to the back side frame, elastic restoring force for rotating the back side frame in the folding direction of a seatback; and a reverse spring supported in a state in which a first end portion is caught by the spring mounting bracket and a second end portion is caught by a first spring support end.
    Type: Application
    Filed: August 17, 2021
    Publication date: November 2, 2023
    Inventors: Cheol Hwan YOON, Kyeong Ju KIM, Hwa Young MUN, Jung Bin LEE, Jun Sik HWANG
  • Publication number: 20230302965
    Abstract: A device for preventing rotation of a vehicle seat rail is described. The device prevents an upper rail on the center side of a vehicle from rotating when a forward load is applied to a vehicle seat, thereby preventing a lock plate from being fractured due to rotation of the upper rail.
    Type: Application
    Filed: July 30, 2021
    Publication date: September 28, 2023
    Inventors: Hwa Young MUN, Kyeong Ju KIM, Cheol Hwan YOON, Jung Bin LEE, Jun Sik HWANG
  • Publication number: 20230242013
    Abstract: Disclosed is a vehicle seat adjustment device including a seat-cushion-tilting frame disposed on a moving rail, the moving rail being coupled to a fixed rail so as to be movable forwards and backwards, and connected to a seatback frame, a tilting device hingedly coupled to a base bracket on the moving rail and to a rear end of the seat-cushion-tilting frame to perform forward tilting of the seat-cushion-tilting frame, a locking device connected to the tilting device to lock and unlock the tilting device, and a probe rotatably disposed between the seatback frame and the tilting device, the probe including a stopper capable of being inserted into a locking groove formed in the seatback frame. Rotation of the probe is restricted when the stopper is inserted into the locking groove.
    Type: Application
    Filed: October 21, 2022
    Publication date: August 3, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, HYUNDAI TRANSYS INC.
    Inventors: Jun Hwan Lee, Sang Do Park, Ho Suk Jung, Hyeok Seung Lee, Mu Young Kim, Chan Ho Jung, Jun Young Yun, Jun Sik Hwang, Jung Bin Lee, Won Yeong Lee, Cheol Hwan Yoon
  • Publication number: 20230049867
    Abstract: Provided is a device for adjusting a seat of a vehicle. The device integrates a fold-and-dive function in addition to a walk-in function of a seat and also enables a forward or backward sliding movement function of the seat to be linked with other functions, so that the walk-in operation that tilts second-row seats or third-row seats to a forward direction for securing an aisle for a passenger to get in or out of the vehicle may be easily performed. Further, the walk-in operation state may be robustly maintained since the seat is robustly fixed after the walk-in operation is performed, and the device contributing to a standardization in which various functions in addition to the walk-in function are integrated with each other and contributing to functional expandability may be provided.
    Type: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Inventors: Ho Suk Jung, Sang Ho Kim, Jun Hwan Lee, Mu Young Kim, Sang Soo Lee, Sang Do Park, Chan Ho Jung, Dong Man Lee, Woo Ryang Kim, Jae Hwa Choi, Jong Beom Na, Cheol Hwan Yoon, Hae Dong Kwak, Jun Sik Hwang, Jung Bin Lee
  • Publication number: 20220379774
    Abstract: A multi-position seat configured to maximize usability thereof through various changes in the positions of a seat back and a seat cushion may include a height assembly configured to move a base frame mounted on a vehicle body, a slide assembly configured to move a seat cushion frame, which is positioned above the base frame and is connected to the base frame via a link mechanism, upwards and downwards by sliding action of the link mechanism in a forward and backward direction, a tilt assembly configured to move a rear end portion of the seat cushion frame upwards and downwards, and a seat back frame hingedly coupled to a rear end portion of the base frame to be reclined.
    Type: Application
    Filed: November 22, 2021
    Publication date: December 1, 2022
    Applicants: Hyundai Motor Company, Kia Corporation, Hyundai Transys, Inc., Daechang Seat Co., LTD-Dongtan
    Inventors: Eun Sue KIM, Seung Sik HAN, Hong Heui LEE, Myung Hoe KIM, Jong Tak LEE, Hae Dong KWAK, Cheol Hwan YOON, Jun Sik HWANG, In Sun BAEK, Sin Chan YANG, Myung Soo LEE, Chan Ki CHO
  • Publication number: 20220332222
    Abstract: Disclosed is a locking device for a walk-in seat of a vehicle capable of stably maintaining the locked state of the walk-in seat prior to a walk-in operation. An object of the present invention is to provide a locking device for a walk-in seat of a vehicle capable of stably maintaining the locked state of the walk-in seat prior to a walk-in operation (that is, the locked state of a drive plate for the walk-in operation of the seat) even if the engagement between the drive plate and a pawl is released due to deformation caused by a torsional load applied to a connection frame of the seat by additionally providing a separate component configured to prevent the drive plate from being rotated in an unlocking direction when a load is applied to a seat belt buckle.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 20, 2022
    Inventors: Jun Sik HWANG, Hae Dong KWAK, Dong Hyun KIM, Cheol Hwan YOON, Jung Bin LEE, Jae Yong JANG
  • Publication number: 20220332224
    Abstract: Disclosed is a locking device for a walk-in seat of a vehicle, the locking device including a drive plate coupled to a connection frame interconnecting a side frame with a seatback frame and configured to move the connection frame to a walk-in position when performing walk-in operation, a pawl mounted on the connection frame and configured to lock or unlock the drive plate depending on whether the walk-in operation is performed, a locking lever mounted on the connection frame and configured to rotate the pawl in a direction of locking or unlocking the drive plate, and a pressing shaft fixed to a lower end of a seat belt buckle and laterally protruding to be coupled to the connection frame, and configured to apply a load to the pawl in a direction of locking the pawl to the drive plate due to the load applied to the seat belt buckle.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 20, 2022
    Inventors: Jung Bin LEE, Hae Dong KWAK, Gwon Hwa BOK, Cheol Hwan YOON, Jae Yong JANG, Jun Sik HWANG
  • Publication number: 20220314853
    Abstract: A backboard assembly for a vehicular rear seat is disclosed. The backboard assembly includes an upper part and a lower part, which are made of a hard plastic material. The backboard assembly prevents the formation of a gap between the lower part and a luggage board, regardless of the operational mode of the rear seat. When a seat back is folded, the upper part, the lower part, and the luggage board are aligned in a horizontal direction, thereby allowing the space for passengers in the rear seat to be completely integrated with a luggage compartment.
    Type: Application
    Filed: November 19, 2021
    Publication date: October 6, 2022
    Inventors: Eun Sue Kim, Seung Sik Han, Hong Heui Lee, Myung Hoe Kim, Cheol Hwan Yoon, Hae Dong Kwak, Jun Sik Hwang, Jong Tak Lee, Sin Chan Yang, In Sun Baek, Myung Soo Lee, Chan Ki Cho
  • Publication number: 20220072980
    Abstract: The present disclosure provides a double-folding unlocking device of a rear seat for a vehicle. The double-folding unlocking device of a rear seat is capable of preventing the occurrence of excessively tight fitting and deformation of components due to excessively tight contact between bracket members when a seatback is rotated in an opposite direction while the seatback is folded or unfolded.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 10, 2022
    Inventors: Jun Sik HWANG, Kyeong Ju KIM, Hwa Young MUN, Cheol Hwan YOON, Jung Bin LEE, Chan Ki CHO, Myeong Su LEE, Sin Chan YANG, Jeon II KANG
  • Patent number: 9701681
    Abstract: The disclosure provides novel chemical compounds represented by Formula I or a pharmaceutically acceptable salt, solvate, polymorph, ester, tautomer or prodrug thereof. The compounds can be used as an inhibitor of Trk and are useful in the treatment of pain, cancer, inflammation, neurodegenerative disease and certain infectious diseases.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: July 11, 2017
    Assignees: CMG PHARMACEUTICAL CO., LTD., HANDOK INC.
    Inventors: Moonsoo Kim, Chaewoon Lee, Gilnam Lee, Cheol Hwan Yoon, Jeongbeob Seo, Je Hak Kim, MinWoo Lee, Hankyul Jeong, Hyang Choi, Myung Eun Jung, Kinam Lee, Hyun Jung Kim, Hye Kyoung Kim, Jae Il Lee, Misoon Kim, Soongyu Choi
  • Patent number: 6689890
    Abstract: Lactams, libraries of lactams, and an efficient method of synthesizing a lactam, including a &ggr;-lactam, in which an &agr;-diazoacetamide of the general structure (I) is reacted under conditions promoting intramolecular C—H insertion, for example in the presence of a rhodium salt such as Rh2(OAc)4, by which means lactams that are precursors in the synthesis of diverse natural and synthetic products, including pyrrolidinone compounds such as lactacystin, pramanicin, kainic acid, statine, AHPPA, and rolipram, are produced.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: February 10, 2004
    Assignee: University of South Florida
    Inventors: Kyung Woon Jung, Cheol Hwan Yoon
  • Publication number: 20030171599
    Abstract: Lactams, libraries of lactams, and an efficient method of synthesizing a lactam, including a &ggr;-lactam, in which an &agr;-diazoacetamide of the general structure (I) is reacted under conditions promoting intramolecular C—H insertion, for example in the presence of a rhodiurn salt such as Rh2(OAc)4, 1
    Type: Application
    Filed: December 18, 2002
    Publication date: September 11, 2003
    Inventors: Kyung Woon Jung, Cheol Hwan Yoon
  • Publication number: 20030004337
    Abstract: Lactams, libraries of lactams, and an efficient method of synthesizing a lactam, including a &ggr;-lactam, in which an a-diazoacetamide of the general structure (I) is reacted under conditions promoting intramolecular C-H insertion, for example in the presence of a rhodium salt such as Rh2(OAc)4, 1
    Type: Application
    Filed: May 4, 2001
    Publication date: January 2, 2003
    Inventors: Kyung Woon Jung, Cheol Hwan Yoon