Patents by Inventor Jung Woong Jang

Jung Woong Jang 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).

  • Positive Electrode and Lithium Secondary Battery Manufactured Using Same
    Publication number: 20240194872
    Abstract: A positive electrode includes a positive electrode active material layer, and the positive electrode active material layer includes a first lithium iron phosphate and a second lithium iron phosphate as a positive electrode active material, the first lithium iron phosphate has an average particle diameter D50 grater than that of the second lithium iron phosphate and at least one facet, and when the cross section of the positive electrode is observed with a scanning electron microscope (SEM), the cross section of the first lithium iron phosphate has at least one side having a length of 2 ?m or more.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 13, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: O Jong Kwon, Jung Hun Choi, Ju Ryoun Kim, Yong Hee Kang, Ji Eun Kim, Min Chul Jang, Ki Woong Kim, In Gu An, Jeong Geun Jo
  • Actuator, stage device, and exposure apparatus
    Patent number: 8593616
    Abstract: An actuator according to example embodiments may be relatively compact and may be driven with 2 degrees of freedom with less spatial constraints. The actuator may include a base member, a ball screw member including a ball screw coupled to the base member and a ball nut screwed onto the ball screw, a driving member coupled to the ball nut so as to move in conjunction with the ball nut, a first directional displacement member configured to move in a first direction in response to a first movement of the driving member, a wedge member coupled to the driving member so as to be moved in a second direction in response to a second movement of the driving member, a second directional displacement member configured to move in a second direction in conjunction with the wedge member, and a binding member configured to bind the first directional displacement member to at least one of the driving member, the wedge member, and the base member.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Hong, Sang Hyun Park, Sang Don Jang, Oui Serg Kim, Ja Choon Koo, Yong Seok Ihn, Jung Woong Jang, Yoo Chang Kim
  • Actuator, stage device, and exposure apparatus
    Publication number: 20110134409
    Abstract: An actuator according to example embodiments may be relatively compact and may be driven with 2 degrees of freedom with less spatial constraints. The actuator may include a base member, a ball screw member including a ball screw coupled to the base member and a ball nut screwed onto the ball screw, a driving member coupled to the ball nut so as to move in conjunction with the ball nut, a first directional displacement member configured to move in a first direction in response to a first movement of the driving member, a wedge member coupled to the driving member so as to be moved in a second direction in response to a second movement of the driving member, a second directional displacement member configured to move in a second direction in conjunction with the wedge member, and a binding member configured to bind the first directional displacement member to at least one of the driving member, the wedge member, and the base member.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 9, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Hong, Sang Hyun Park, Sang Don Jang, Oui Serg Kim, Ja Choon Koo, Yong Seok Ihn, Jung Woong Jang, Yoo Chang Kim