Patents by Inventor Jae-Hyun Ryu

Jae-Hyun Ryu 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: 9559271
    Abstract: There is provided an oxynitride-based phosphor comprising a ?-type Si3N4 crystal structure and represented by a compositional formula of Si6?xAlxOxN8?x:Euy (0<x?0.3, 0.001?y?0.03), the oxynitride-based phosphor having a form of a secondary particle comprising a plurality of primary particles bonded to each other, the plurality of primary particles having pillar shapes.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: January 31, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Suk Roh, Seong Min Kim, Jae Hyun Ryu
  • Publication number: 20160181484
    Abstract: There is provided an oxynitride-based phosphor comprising a ?-type Si3N4 crystal structure and represented by a compositional formula of Si6-xAlxOxN8-x:Euy (0<x?0.3, 0.001?y?0.03), the oxynitride-based phosphor having a form of a secondary particle comprising a plurality of primary particles bonded to each other, the plurality of primary particles having pillar shapes.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 23, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Suk ROH, Seong Min KIM, Jae Hyun RYU
  • Publication number: 20080143472
    Abstract: A fuse structure of a semiconductor device includes a fuse pattern having a contact portions at opposite ends of the fuse pattern, wherein the fuse pattern includes a first conductive layer and a second conductive layer stacked sequentially, and a first electrode and a second electrode connected to the contact portions respectively. The fuse pattern is configured to be electrically shorted during a fuse program operation. A bottleneck portion can be formed at the center of the fuse pattern spaced apart from pad portions formed at opposite ends of the fuse pattern to which an electrode is connected, enabling breakage of the fuse pattern to be spaced apart from a contact portion of the electrode. As a result, a profile of a portion broken after a fuse program operation is improved and leakage current caused by a poor profile is suppressed.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 19, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ghil-Geun Oh, Jae-Hyun Ryu, Jae-Cheol Hwang