Patents by Inventor Yu INADA

Yu INADA 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 ELECTROLUMINESCENCE ELEMENT, AND DESIGN METHOD AND PROGRAM FOR LIGHT EMITTING COMPOSITION
    Publication number: 20240023437
    Abstract: Provided is an organic electroluminescent device that has a long device lifetime and is stable. The organic electroluminescent device has a light emitting layer containing first to third compounds satisfying the following formulae. ES1 is a lowest excited singlet energy and EHOMO(n) is a HOMO energy. ES1(1)>ES1(2)>ES1(3) 0 eV<EHOMO(3)-EHOMO(2)<0.
    Type: Application
    Filed: November 17, 2021
    Publication date: January 18, 2024
    Inventors: YiTing LEE, Masaki TANAKA, Chin-Yiu CHAN, Youichi TSUCHIYA, Hajime NAKANOTANI, Chihaya ADACHI, Yu INADA
  • COMPOUND, LIGHT-EMITTING MATERIAL, AND LIGHT-EMITTING ELEMENT
    Publication number: 20230212177
    Abstract: A compound represented by the following general formula is useful as a light emitting material. Two of R1 to R5 each are an aromatic hydrocarbon cyclic group, or a nitrogen atom-containing aromatic heterocyclic group, three of R1 to R5 each are a donor group, and at least one thereof is a benzofuran ring-condensed carbazolyl-9-yl group.
    Type: Application
    Filed: June 10, 2021
    Publication date: July 6, 2023
    Inventors: Kaori FUJISAWA, Yong Joo CHO, Yoshitake SUZUKI, Hayato KAKIZOE, Yu INADA, YuSeok YANG
  • COMPOSITION OF MATTER FOR USE IN ORGANIC LIGHT-EMITTING DIODES
    Publication number: 20220340545
    Abstract: The present disclosure relates to compounds of Formula I) as useful materials for OLED's. X1, X2 and X3 are N or C(R5); Ar1 and Ar2 are aryl, heteroaryl or cyano; L1 is single bond, arylene or heteroarylene; and R1, R2, R3 and R4 are diarylamino, carbazolyl, heteroaryl, H or alkyl.
    Type: Application
    Filed: September 8, 2020
    Publication date: October 27, 2022
    Inventors: Yong Joo CHO, Kaori FUJISAWA, Yoshitake SUZUKI, Masataka YAMASHITA, Shuo-Hsien CHENG, YuSeok YANG, Hiroaki OZAWA, Hayato KAKIZOE, Yu INADA, Ayataka ENDO