Patents by Inventor Ji-ho Hwang

Ji-ho 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).

  • Publication number: 20250059180
    Abstract: The present invention relates to a compound represented by chemical formula I, a stereoisomer thereof, a pharmaceutically acceptable salt thereof, a hydrate or solvate thereof, and a pharmaceutical composition comprising same.
    Type: Application
    Filed: January 13, 2023
    Publication date: February 20, 2025
    Inventors: Seung Hwan Kim, Whui Jung Park, Dong Hyuk Shin, Seong Su Jeong, Sang Ho Lee, Ji Young Woo, Woon Heo, Doc Gyun Jeong, Seo Hee Jeong, Jae Kyung Lim, Yun Ha Hwang
  • Patent number: 12227676
    Abstract: Provided is an adhesive composition including lysine, alpha ketoglutaric acid, and water, wherein the lysine and the alpha ketoglutaric acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: February 18, 2025
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Ho Hwang, Young Lyeol Yang, Chang Yub Oh, Chang Suk Lee, Kyung Su Na, Jun Ok Moon
  • Patent number: 12227478
    Abstract: Provided are a process for preparing (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine or a salt thereof, which is an intermediate useful for the preparation of tofacitinib, an intermediate used in the process, i.e., isopropanol solvate of methyl ((3R,4R)-1-benzyl-4-methylpiperidin-3-yl)carbamate dibenzoyl-L-tartrate, an intermediate, having excellent stability, useful for the preparation of tofacitinib, i.e., (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine acetate, and a process for preparing tofacitinib or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: February 18, 2025
    Assignee: YUHAN CORPORATION
    Inventors: Sang-Ho Oh, Doo-Byung Lee, Kyoung-Chan Kwon, Sang-Won Kim, Hyo-Ick Hwang, Kyeong-Sill Lee, Ik-Su Jo, Ji-Hye Choi, Sung-Hee Cho, Su-Young Lee
  • Patent number: 12110430
    Abstract: Provided is an adhesive composition, an adhesive product, and a method of preparing an adhesive composition. The adhesive composition including lysine, oxaloacetic acid, and water, wherein the lysine and the oxaloacetic acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: October 8, 2024
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Ho Hwang, Young Lyeol Yang, Chang Yub Oh, Chang Suk Lee, Kyung Su Na, Jun Ok Moon
  • Patent number: 12110431
    Abstract: Provided is an adhesive composition including lysine, malic acid, and water, wherein the lysine and the malic acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: October 8, 2024
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Ho Hwang, Young Lyeol Yang, Chang Yub Oh, Chang Suk Lee, Kyung Su Na, Jun Ok Moon
  • Patent number: 11292944
    Abstract: Provided is an adhesive composition including lysine, citric acid, and water, wherein the lysine and the citric acid are present in the form of an aqueous solution of a salt such that precipitates are not formed in the aqueous solution. In addition, provided is a method of preparing an adhesive composition including mixing lysine, citric acid, and water to thereby form a mixture of the lysine, the citric acid, and the water, and stirring the mixture at a temperature of 80° C. or less, wherein amounts of the lysine, the citric acid, and the water are adjusted such that precipitates of the lysine and the citric acid do not form in the adhesive composition.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: April 5, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Ho Hwang, Jun Ok Moon, Young Lyeol Yang, Chang Suk Lee, Sang Gwon Moon, Su Jin Choi
  • Patent number: 11254845
    Abstract: Provided is an adhesive composition including lysine, itaconic acid, and water, wherein the lysine and the itaconic acid are present in the form of an aqueous solution of a salt such that precipitates are not formed in the aqueous solution. In addition, provided is a method of preparing an adhesive composition including mixing lysine, itaconic acid, and water to thereby form a mixture of the lysine, the citric acid, and the water, and stirring the mixture at a temperature of 80° C. or less, wherein amounts of the lysine, the itaconic acid, and the water are adjusted such that precipitates of the lysine and the itaconic acid do not form in the adhesive composition.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 22, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Ho Hwang, Jun Ok Moon, Young Lyeol Yang, Chang Suk Lee, Sang Gwon Moon, Su Jin Choi
  • Publication number: 20210403766
    Abstract: Provided is an adhesive composition for labels, including a salt of lysine and citric acid, and chitosan, a method of preparing the adhesive composition, an adhesive sheet including the adhesive composition, and an article including the adhesive sheet.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 30, 2021
    Inventors: Bo Ra MUN, Ji Ho HWANG, Kyung Su NA, Sang Gwon MOON, Young Lyeol YANG, Hyun Joong Kim, Jong Ho Back
  • Publication number: 20210269690
    Abstract: Provided is an adhesive composition including lysine, oxaloacetic acid, and water, wherein the lysine and the oxaloacetic acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.
    Type: Application
    Filed: August 30, 2019
    Publication date: September 2, 2021
    Inventors: Ji Ho HWANG, Young Lyeol YANG, Chang Yub OH, Chang Suk LEE, Kyung Su NA, Jun Ok MOON
  • Publication number: 20210269683
    Abstract: Provided is an adhesive composition including lysine, alpha ketoglutaric acid, and water, wherein the lysine and the alpha ketoglutaric acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.
    Type: Application
    Filed: August 30, 2019
    Publication date: September 2, 2021
    Inventors: Ji Ho HWANG, Young Lyeol YANG, Chang Yub OH, Chang Suk LEE, Kyung Su NA, Jun Ok MOON
  • Publication number: 20210189196
    Abstract: Provided is an adhesive composition including lysine, malic acid, and water, wherein the lysine and the malic acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.
    Type: Application
    Filed: August 30, 2019
    Publication date: June 24, 2021
    Inventors: Ji Ho HWANG, Young Lyeol YANG, Chang Yub OH, Chang Suk LEE, Kyung Su NA, Jun Ok MOON
  • Publication number: 20210189180
    Abstract: Provided is an adhesive composition including ornithine, citric acid, and water, wherein the ornithine and the citric acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution. Also provided a method of preparing an adhesive composition including: mixing ornithine, citric acid, and water to form a mixture of the ornithine, the citric acid, and the water; and stirring the mixture at a temperature of less than 80° C., wherein respective contents of the ornithine, the citric acid, and the water are adjusted such that precipitates of the ornithine and the citric acid do not form in the adhesive composition.
    Type: Application
    Filed: August 30, 2019
    Publication date: June 24, 2021
    Inventors: Ji Ho HWANG, Young Lyeol YANG, Kyung Su NA, Jun Ok MOON, Chang Suk LEE
  • Publication number: 20200017729
    Abstract: Provided is an adhesive composition including lysine, citric acid, and water, wherein the lysine and the citric acid are present in the form of an aqueous solution of a salt such that precipitates are not formed in the aqueous solution. In addition, provided is a method of preparing an adhesive composition including mixing lysine, citric acid, and water to thereby form a mixture of the lysine, the citric acid, and the water, and stirring the mixture at a temperature of 80° C. or less, wherein amounts of the lysine, the citric acid, and the water are adjusted such that precipitates of the lysine and the citric acid do not form in the adhesive composition.
    Type: Application
    Filed: March 21, 2018
    Publication date: January 16, 2020
    Inventors: Ji Ho HWANG, Jun Ok MOON, Young Lyeol YANG, Chang Suk LEE, Sang Gwon MOON, Su Jin CHOI
  • Publication number: 20200017730
    Abstract: Provided is an adhesive composition including lysine, itaconic acid, and water, wherein the lysine and the itaconic acid are present in the form of an aqueous solution of a salt such that precipitates are not formed in the aqueous solution. In addition, provided is a method of preparing an adhesive composition including mixing lysine, itaconic acid, and water to thereby form a mixture of the lysine, the citric acid, and the water, and stirring the mixture at a temperature of 80° C. or less, wherein amounts of the lysine, the itaconic acid, and the water are adjusted such that precipitates of the lysine and the itaconic acid do not form in the adhesive composition.
    Type: Application
    Filed: March 21, 2018
    Publication date: January 16, 2020
    Inventors: Ji Ho HWANG, Jun Ok MOON, Young Lyeol YANG, Chang Suk LEE, Sang Gwon MOON, Su Jin CHOI
  • Patent number: 9725574
    Abstract: The present disclosure provides a polyester-based plasticizer for resin, which is represented by Formula 1.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: August 8, 2017
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Young Lyeol Yang, Ji Ho Hwang, Do Yong Shim
  • Publication number: 20170066901
    Abstract: The present disclosure provides a polyester-based plasticizer for resin, which is represented by Formula 1.
    Type: Application
    Filed: March 18, 2015
    Publication date: March 9, 2017
    Inventors: Young Lyeol YANG, Ji Ho HWANG, Do Yong SHIM
  • Patent number: 8213123
    Abstract: An actuator latch system of a hard disk drive (HDD) retains a rotatable swing arm of the HDD in place when a magnetic head of the HDD is parked. The actuator latch system includes a portion of the swing arm that defines a notch at an end portion of a swing arm, and a latch lever that has at least one main hook and a rebound hook, and an elastic buffering arm. The latch lever is disposed on the base member adjacent the end portion of the swing arm and is supported so as to be rotatable. The at least one main hook prevents the swing arm from initially rotating in one direction beyond a certain point, and the rebound hook prevents the swing arm from rotating beyond a certain point after the swing arm rebounds upon colliding with the at least one main hook.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 3, 2012
    Assignee: Seagate Technology International
    Inventors: Ji-Ho Hwang, Byoung-gyou Choi, Do-wan Kim
  • Patent number: 7832083
    Abstract: A shipping comb combined with a head stack assembly (HSA) which includes sliders recording data onto or reading data from disks, suspensions having the sliders thereon, and end-taps at front ends of the suspensions, the shipping comb preventing the HSA from being damaged, the shipping comb including a body unit having protruding suspension spacers which are each inserted between middle portions of a pair of suspensions having a pair of sliders facing each other to prevent a collision of the middle portions of the pair of suspensions, and a head unit having protruding end-tap spacers inserted between the end-taps of the pair of the suspensions to prevent a collision of the front ends of the pair of suspensions, and connected to a front end of the body unit with a hinge.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: November 16, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jung-moo Son, Ji-ho Hwang
  • Patent number: 7663836
    Abstract: A base plate and a cover plate for a hard disk drive. At least one of the base plate and the cover plate is formed with a push pin hole extended in a slot shape in a predetermined length through which a push pin passes to implement a servo track write. The push pin hole is provided with an enlarged portion to prevent collision of the push pin, when the push pin enters into the push pin hole.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: February 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ji-ho Hwang
  • Patent number: 7452232
    Abstract: A hard disk drive (HDD) adapted for connection to a receptacle of a host device is disclosed. The HDD comprises a base having a lower portion coupled to a printed circuit board assembly (PCBA), the PCBA comprising a plug adapted for coupling to the receptacle, and a dummy coupling portion provided on the receptacle and the base to provide supplemental mechanical coupling strength between the receptacle and the plug.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: November 18, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ji-Ho Hwang