Patents by Inventor James Xia

James Xia 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: 20190305230
    Abstract: Novel organic compounds comprising ligands with deuterium substitution are provided. In particular, the compound is an iridium complex comprising methyl-d3 substituted ligands. The compounds may be used in organic light emitting devices to provide devices having improved color, efficiency and lifetime.
    Type: Application
    Filed: June 10, 2019
    Publication date: October 3, 2019
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun XIA, James FIORDELISO, Raymond KWONG
  • Patent number: 10381580
    Abstract: Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 13, 2019
    Assignee: Universal Display Corporation
    Inventors: Chuanjun Xia, Walter Yeager, David Zenan Li, James Fiordeliso, Bin Ma, Zeinab Elshenawy, Suman Layek, Ed Barron, Gregg Kottas, Jason Brooks
  • Publication number: 20190245147
    Abstract: A compound having the structure of Formula I is disclosed. In the structure of Formula I, each of R1, R2, and R3 is independently a hydrogen, a non-fused aryl group having one meta-substituent, or a non-fused heteroaryl six-membered ring having one or more meta-substituents; each meta-substituent is a non-fused aryl or non-fused heteroaryl six-membered ring optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups; and at least one of R1, R2, and R3 is a non-fused aryl having one meta-substituent or a heteroaryl six-membered ring having at least one meta-substituent, wherein each meta-substituent is a non-fused aryl or non-fused heteroaryl group further substituted with a chain of at least two non-fused aryl or non-fused heteroaryl groups. The compounds may be useful in phosphorescent organic light emitting devices.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Applicant: Universal Display Corporation
    Inventors: Jason Brooks, Chuanjun Xia, Raymond Kwong, James Fiordeliso
  • Patent number: 10374173
    Abstract: Novel organic compounds comprising ligands with deuterium substitution are provided. In particular, the compound is an iridium complex comprising methyl-d3 substituted ligands. The compounds may be used in organic light emitting devices to provide devices having improved color, efficiency and lifetime.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 6, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, James Fiordeliso, Raymond Kwong
  • Patent number: 10312450
    Abstract: A compound having the structure of Formula I is disclosed. In the structure of Formula I, each of R1, R2, and R3 is independently a hydrogen, a non-fused aryl group having one meta-substituent, or a non-fused heteroaryl six-membered ring having one or more meta-substituents; each meta-substituent is a non-fused aryl or non-fused heteroaryl six-membered ring optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups; and at least one of R1, R2, and R3 is a non-fused aryl having one meta-substituent or a heteroaryl six-membered ring having at least one meta-substituent, wherein each meta-substituent is a non-fused aryl or non-fused heteroaryl group further substituted with a chain of at least two non-fused aryl or non-fused heteroaryl groups. The compounds may be useful in phosphorescent organic light emitting devices.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 4, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jason Brooks, Chuanjun Xia, Raymond Kwong, James Fiordeliso
  • Patent number: 10305516
    Abstract: Embodiments relate to a system with multiple erasure codes, and selecting and encoding for a write file with one of the codes to mitigate costs associated with storage recovery. The codes include a fast recovery code for frequently accessed data and a higher storage efficiency code for less frequently accessed data. State data is tracked to ascertain frequency of access to the file. One of the erasure codes is dynamically selected based on the tracked data, with the focus of the code select to lower recovery costs, and the data is encoded with the selected erasure code. Accordingly, the original coding of the write file is subject to change based on the tracked state data.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: May 28, 2019
    Assignee: International Business Machines Corporation
    Inventors: Mario Blaum, James L. Hafner, David A. Pease, Mohit Saxena, Mingyuan Xia
  • Publication number: 20190158599
    Abstract: A first request is received from a first processing node to produce data blocks of a first data stream representing a first communication topic. The first processing node is one of the processing nodes handling a specific function. Each of the processing nodes is executed within a specific node container having a specific operating environment. A global memory segment is allocated from a global memory to store the data blocks of the first data stream. A first local memory segment is mapped to the global memory segment. The first local memory segment is allocated from a first local memory of a first node container containing the first processing node. The first processing node directly accesses the data blocks of the first data stream stored in the global memory segment by accessing the mapped first local memory segment within the first node container.
    Type: Application
    Filed: January 19, 2019
    Publication date: May 23, 2019
    Inventors: Quan Wang, Liming Xia, Jingchao Feng, Ning Qu, James Peng
  • Publication number: 20190148651
    Abstract: Methods of making novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 16, 2019
    Applicant: Universal Display Corporation
    Inventors: CHUANJUN XIA, Bert ALLEYNE, Raymond C. KWONG, James FIORDELISO, Michael S. WEAVER, Nasrin ANSARI, Alan DEANGELIS, Dinesh RAYABARAPU, Vadim ADAMOVICH
  • Publication number: 20190140185
    Abstract: Devices containing novel carbazole-containing compounds are provided. The novel compounds also contain electron donor groups, aryl linkers, and at least one nitrogen heterocycle. These novel organic compounds can exhibit delayed fluorescence in the devices.
    Type: Application
    Filed: July 25, 2018
    Publication date: May 9, 2019
    Applicant: Universal Display Corporation
    Inventors: CHUANJUN XIA, Chun Lin, Raymond Kwong, Scott Joseph, James Esler
  • Patent number: 10155991
    Abstract: The present invention provides assays, methods and kits that may be used to assess colorectal cancer (CRC) in a subject in relation to diagnosis, prognosis and treatment evaluation, using blood samples.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: December 18, 2018
    Inventor: Xueliang James Xia
  • Publication number: 20160201136
    Abstract: The present invention provides assays, methods and kits that may be used to assess colorectal cancer (CRC) in a subject in relation to diagnosis, prognosis and treatment evaluation, using blood samples.
    Type: Application
    Filed: August 15, 2013
    Publication date: July 14, 2016
    Inventor: James XIA
  • Publication number: 20040014078
    Abstract: This invention is directed to novel methods of amplifying and detecting DNA. More specifically, the invention applies variations of Rolling Circle Amplification to several detection platforms.
    Type: Application
    Filed: February 6, 2003
    Publication date: January 22, 2004
    Inventors: James Xia, Charles K. Brush, Vineet Gupta, Heshu Huang, Changming Li, George Maracas, Robert Marrero, Melissa L. Ray, Lei Sun, Peiming Zhang
  • Patent number: 6671539
    Abstract: A method of forming a surgical splint to receive a patient's dentition and thereby align the upper jaw and the lower jaw during surgery includes generating a CT computer model of bone structure, generating a digital dental computer model of the patient's dentition, and then combining the CT computer model and the digital dental computer model to form a composite computer model. The composite computer model may be displayed, and at least one of the upper jaw and lower jaw repositioned relative to the patient's skull and the composite computer model to form a planned position computer model. Using this desired position computer model, a computer model surgical splint of the patient's dentition may be formed, which is then input into a fabrication machine to form a surgical splint. The method also includes forming and displaying the composite computer model. A workstation includes a CT machine, a digital scanner, a computer, an input command mechanism, a display, and a fabricating machine.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: December 30, 2003
    Assignee: Board of Regents University of Texas System
    Inventors: Jaime Gateno, John F. Teichgraeber, James Xia
  • Publication number: 20030065259
    Abstract: A method of forming a surgical splint to receive a patient's dentition and thereby align the upper jaw and the lower jaw during surgery includes generating a CT computer model of bone structure, generating a digital dental computer model of the patient's dentition, and then combining the CT computer model and the digital dental computer model to form a composite computer model. The composite computer model may be displayed, and at least one of the upper jaw and lower jaw repositioned relative to the patient's skull and the composite computer model to form a planned position computer model. Using this desired position computer model, a computer model surgical splint of the patient's dentition may be formed, which is then input into a fabrication machine to form a surgical splint. The method also includes forming and displaying the composite computer model. A workstation includes a CT machine, a digital scanner, a computer, an input command mechanism, a display, and a fabricating machine.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Inventors: Jaime Gateno, John F. Teichgraeber, James Xia