Patents by Inventor Hiromi OYAMA

Hiromi OYAMA 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).

  • Organic electroluminescent device
    Patent number: 10629830
    Abstract: An amine derivative represented by the following General Formula (1) is provided. In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 21, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junta Fuchiwaki, Hiromi Oyama, Yasuo Miyata, Naoya Sakamoto, Masatsugu Ueno, Ichinori Takada
  • ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20180019416
    Abstract: An amine derivative represented by the following General Formula (1) is provided. In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 18, 2018
    Inventors: Junta FUCHIWAKI, Hiromi OYAMA, Yasuo MIYATA, Naoya SAKAMOTO, Masatsugu UENO, Ichinori TAKADA
  • Amine derivative, organic luminescent material and organic electroluminescent device using the amine derivative or the organic luminescent material
    Patent number: 9780317
    Abstract: An amine derivative represented by the following General Formula (1) is provided. In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: October 3, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junta Fuchiwaki, Hiromi Oyama, Yasuo Miyata, Naoya Sakamoto, Masatsugu Ueno, Ichinori Takada
  • AMINE DERIVATIVE, ORGANIC LUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE AMINE DERIVATIVE OR THE ORGANIC LUMINESCENT MATERIAL
    Publication number: 20150270502
    Abstract: An amine derivative represented by the following General Formula (1) is provided. In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Inventors: Junta FUCHIWAKI, Hiromi OYAMA, Yasuo MIYATA, Naoya SAKAMOTO, Masatsugu UENO, Ichinori TAKADA