Patents by Inventor Jae-Jun CHANG

Jae-Jun CHANG 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).

  • HIGH-PURITY MANUFACTURING METHOD OF NANOCELLULOSE WITH ULTRA-HIGHLY GRAFTED BIOPOLYMER
    Publication number: 20240092943
    Abstract: The present invention provides a high-purity glucose-based compound ultra-highly substituted with a biopolymer, in which a surface of a glucose-based compound as a natural material is ultra-highly modified with a biopolymer to improve compatibility and dispersibility with biodegradable polymers, thereby significantly improving the mechanical properties of the biodegradable polymer composite.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 21, 2024
    Applicant: Foundation of Soongsil University-Industry Cooperation
    Inventors: Jae Woo Chung, Hee Cheol Kang, Yong Jun Chang, Jae Woo Lee
  • Negative active material, negative electrode including the negative active material, and lithium secondary battery including the negative electrode
    Patent number: 9748562
    Abstract: A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 29, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-jin Ham, Jeong-kuk Shon, Min-sang Song, Seung-sik Hwang, Jun-hwan Ku, Jae-jun Chang, Sang-min Ji, Jae-man Choi
  • NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING THE NEGATIVE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20150111102
    Abstract: A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.
    Type: Application
    Filed: April 8, 2014
    Publication date: April 23, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong-jin HAM, Jeong-kuk SHON, Min-sang SONG, Seung-sik HWANG, Jun-hwan KU, Jae-jun CHANG, Sang-min JI, Jae-man CHOI
  • SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20130327376
    Abstract: A solar cell includes a first electrode, a second electrode facing the first electrode, an active layer between the first and second electrodes, and an interlayer between the first electrode and the active layer, the interlayer including an amphiphilic fullerene derivative.
    Type: Application
    Filed: November 2, 2012
    Publication date: December 12, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Xavier BULLIARD, Youn-Hee LIM, Jae-Jun CHANG