Patents by Inventor Hideji Komatsu

Hideji Komatsu 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: 11430961
    Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu, Koichiro Iida
  • Publication number: 20210323986
    Abstract: An iridium complex compound represented by formula (5). Provided is an iridium complex compound that is useful as a material for a light-emitting layer of an organic electroluminescent element, has a narrow half-width of the emission spectrum thereof, has high solubility in a solvent, and has a short wavelength that is not too long and is suitable as a red-light-emitting material. where in formula (5), Ir represents an iridium atom. X represents a bidentate ligand. m represents an integer of 1 to 3. R1 to R22 each independently represent a hydrogen atom or a substituent. Adjacent substituents are optionally bonded together to form a ring. At least one of R13, R17, R18, and R22 represents a substituent other than a hydrogen atom.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kazuhiro NAGAYAMA, Hideji KOMATSU
  • Patent number: 10600974
    Abstract: The object of the invention is to provide an iridium complex compound which emits red light with a high luminescent quantum yield, a process for producing the compound, an organic electroluminescent element which employs the iridium complex compound and has a high luminescent efficiency, a display device, and an illuminator.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: March 24, 2020
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu
  • Patent number: 9799837
    Abstract: The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 24, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kazuhiro Nagayama, Hideji Komatsu, Akira Migita, Hideki Gorohmaru, Koichiro Iida, Takashi Oya, Koichi Ishibashi
  • Publication number: 20160293866
    Abstract: The object of the invention is to provide an iridium complex compound which emits red light with a high luminescent quantum yield, a process for producing the compound, an organic electroluminescent element which employs the iridium complex compound and has a high luminescent efficiency, a display device, and an illuminator.
    Type: Application
    Filed: June 7, 2016
    Publication date: October 6, 2016
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Koichi ISHIBASHI, Kazuhiro NAGAYAMA, Hideji KOMATSU
  • Publication number: 20150155502
    Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.
    Type: Application
    Filed: February 9, 2015
    Publication date: June 4, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi ISHIBASHI, Kazuhiro NAGAYAMA, Hideji KOMATSU, Koichiro IIDA
  • Publication number: 20140319505
    Abstract: The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kazuhiro NAGAYAMA, Hideji KOMATSU, Akira MIGITA, Hideki GOROHMARU, Koichiro IIDA, Takashi OYA, Koichi ISHIBASHI
  • Patent number: 8148005
    Abstract: An active material for a secondary battery has excellent large current charge-discharge characteristic and a high energy density. The secondary battery is composed mainly of the active material having a conductive polymer compound represented by formula B or F as the positive electrode. Because this conductive polymer compound works as an active material and has conductivity per se, the use of a conductivity enhancer can be omitted, and the energy density is high. An improvement in the capacity of a secondary battery using the active material above or a decrease in the internal resistance can be realized.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 3, 2012
    Assignees: Denso Corporation, The University of Tokyo
    Inventors: Kyohei Usami, Naomi Awano, Atsushi Fukaya, Tadashi Sugawara, Michio M. Matsushita, Hideji Komatsu
  • Publication number: 20080102374
    Abstract: An active material for a secondary battery has excellent large current charge-discharge characteristic and a high energy density. The secondary battery is composed mainly of the active material having a conductive polymer compound represented by formula B or F as the positive electrode. Because this conductive polymer compound works as an active material and has conductivity per se, the use of a conductivity enhancer can be omitted, and the energy density is high. An improvement in the capacity of a secondary battery using the active material above or a decrease in the internal resistance can be realized.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Applicants: DENSO Corporation, The University of Tokyo
    Inventors: Kyohei Usami, Naomi Awano, Atsushi Fukaya, Tadashi Sugawara, Michio Matsushita, Hideji Komatsu