Patents by Inventor Masashi MAMADA

Masashi MAMADA 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 SOLID-STATE LASER, COMPOUND AND USE THEREOF
    Publication number: 20230143779
    Abstract: A compound represented by the formula (1) has excellent lasing properties. G1 and G2 are H or substituent; FL1 and FL2 are represented by the formula (2); BT is represented by the formula (4); and n1, n2 and m are 1 to 5.
    Type: Application
    Filed: February 9, 2021
    Publication date: May 11, 2023
    Inventors: Anthony D'ALEO, Jean Charles Maurice RIBIERRE, Fatima BENCHEIKH, Virginie Simone Francoise PLACIDE, Masashi MAMADA, Chihaya ADACHI
  • Organic light-emitting element, and light-emitting material and fluorescent body used in same
    Patent number: 11322693
    Abstract: Disclosed is an organic light-emitting device using a compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer. The compound includes, for example, a compound represented by the general formula. X1 to X3 each represent O or S; R1 to R6 each represent nH or a substituent; n, n1 to n3 each represent an integer of 1 to 3.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 3, 2022
    Assignees: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION, KYULUX, INC.
    Inventors: Masashi Mamada, Chihaya Adachi, Hajime Nakanotani, YuSeok Yang
  • ORGANIC LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING MATERIAL AND FLUORESCENT BODY USED IN SAME
    Publication number: 20190348617
    Abstract: Disclosed is an organic light-emitting device using a compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer. The compound includes, for example, a compound represented by the general formula. X1 to X3 each represent O or S; R1 to R6 each represent nH or a substituent; n, n1 to n3 each represent an integer of 1 to 3.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 14, 2019
    Inventors: Masashi MAMADA, Chihaya ADACHI, Hajime NAKANOTANI, YuSeok YANG
  • BENZOBIS(THIADIAZOLE) DERIVATIVE, INK COMPRISING THE SAME, AND ORGANIC ELECTRONIC DEVICE USING THE SAME
    Publication number: 20180219160
    Abstract: An object of the present invention is to provide a benzobis(thiadiazole) derivative, which has an excellent mobility of electron (field-effect mobility) and also has an excellent stability in the atmosphere. The present invention relates to a benzobis(thiadiazole) derivative or the like, which has cyclic imide structures annelated to an aromatic ring in the molecule, represented by the following general formula (1) or (2) wherein R, A and Z represent predetermined groups.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 2, 2018
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Shizuo TOKITO, Daisuke KUMAKI, Masashi MAMADA, Takashi HONMA, Yasuhiro TANAKA, Toshikazu MACHIDA, Kazuaki KAKITA, Natsuko YAMADA
  • Benzobis (thiadiazole) derivative, ink comprising same, and organic electronic device comprising same
    Patent number: 9978954
    Abstract: A benzobis(thiadiazole) derivative represented by the following general formula (1): in which R1 represents a linear or branched alkyl group, or any one of the groups of the following formula (2): in which R represents a linear or branched alkyl group; R2 represents a hydrogen atom; and R3 represents a hydrogen atom, a linear or branched alkyl group, or any one of the groups of the formula (2); with the proviso that at least one of R1 and R3 represents any one of the groups of the formula (2); and two R1 groups, two R2 groups, and two R3 groups may be the same as, or different from each other.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 22, 2018
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Shizuo Tokito, Daisuke Kumaki, Masashi Mamada, Kenjiro Fukuda, Yasuhiro Tanaka, Hidetaka Shima, Yasuhiro Yoneda, Harunori Fujita, Kazuaki Kakita, Youji Omata, Natsuko Yamada, Takashi Honma, Toshikazu Machida
  • BENZOBIS (THIADIAZOLE) DERIVATIVE, INK COMPRISING SAME, AND ORGANIC ELECTRONIC DEVICE COMPRISING SAME
    Publication number: 20160276598
    Abstract: A benzobis(thiadiazole) derivative represented by the following general formula (1): in which R1 represents a linear or branched alkyl group, or any one of the groups of the following formula (2): in which R represents a linear or branched alkyl group; R2 represents a hydrogen atom; and R3 represents a hydrogen atom, a linear or branched alkyl group, or any one of the groups of the formula (2); with the proviso that at least one of R1 and R3 represents any one of the groups of the formula (2); and two R1 groups, two R2 groups, and two R3 groups may be the same as, or different from each other.
    Type: Application
    Filed: August 29, 2014
    Publication date: September 22, 2016
    Inventors: Shizuo TOKITO, Daisuke KUMAKI, Masashi MAMADA, Kenjiro FUKUDA, Yasuhiro TANAKA, Hidetaka SHIMA, Yasuhiro YONEDA, Harunori FUJITA, Kazuaki KAKITA, Youji OMATA, Natsuko YAMADA, Takashi HONMA, Toshikazu MACHIDA