Patents by Inventor Naoyuki Ito

Naoyuki Ito 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: 20170077427
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a condensed cyclic compound represented by Formula 1. An organic light-emitting device including the organometallic compound according to the embodiments of the present disclosure may have high efficiency: M(L1)(L2).
    Type: Application
    Filed: August 3, 2016
    Publication date: March 16, 2017
    Inventors: Younsun Kim, Yunho Lee, Seulong Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Hyein Jeong, Yeong-Eun Kim, Jin Kim
  • Publication number: 20170054081
    Abstract: An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *?N—*? as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
  • Patent number: 9564598
    Abstract: An organic light-emitting device includes an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer includes a mixed organic layer, and the mixed organic layer includes at least two different compounds, and a triplet energy of at least one compound of the at least two different compounds is 2.2 eV or higher. The organic light-emitting device according to embodiments of the present invention may have a low driving voltage, a high efficiency, and a long lifespan.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Naoyuki Ito, Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Jung-Sub Lee
  • Publication number: 20170018600
    Abstract: An organic light-emitting display device having widened color gamut is disclosed. The organic light-emitting display device comprises a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, wherein the first sub-pixel comprises a first emission layer that emits a first color light, the second sub-pixel comprises a second emission layer that emits a second color light, the third sub-pixel comprises a third emission layer that emits a third color light, and the fourth sub-pixel comprises a fourth emission layer that emits a fourth color light; the first color light, the second color light, the third color light, and the fourth color light are different from each other; at least one emission layer of the first emission layer, the second emission layer, the third emission layer, and the fourth emission layer emits delayed fluorescence.
    Type: Application
    Filed: April 19, 2016
    Publication date: January 19, 2017
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Sunghun Lee, Jungsub Lee, Changwoong Chu
  • Publication number: 20160359126
    Abstract: An organometallic compound represented by ML1L2 and an organic light-emitting device including the same, wherein M may be selected from copper (Cu), cobalt (Co), and nickel (Ni), L1 may be selected from ligands represented by Formula 2, and L2 may be a monovalent organic ligand: When the organometallic compound represented by ML1L2 is used as a dopant in the emission layer of an organic light-emitting device, the organic light-emitting device may have low driving voltage and high quantum efficiency.
    Type: Application
    Filed: April 28, 2016
    Publication date: December 8, 2016
    Inventors: Younsun Kim, Yunho Lee, Seulong Kim, Yeong-Eun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Hyein Jeong
  • Publication number: 20160359121
    Abstract: An organic light-emitting display device includes a pixel including a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, where the first sub-pixel includes a first emission layer that emits a first color light, the second sub-pixel includes a second emission layer that emits a second color light, the third sub-pixel includes a third emission layer that emits a third color light, and the fourth sub-pixel includes a fourth emission layer that emits a fourth color light; the first color light, the second color light, the third color light, and the fourth color light are different from each other; at least one emission layer selected from the first emission layer, the second emission layer, the third emission layer, and the fourth emission layer includes an organometallic compound; and the organometallic compound includes iridium (Ir).
    Type: Application
    Filed: December 31, 2015
    Publication date: December 8, 2016
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Sunghun Lee, Jungsub Lee, Changwoong Chu
  • Patent number: 9515271
    Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer and an electron transport region, the electron transport region being between the emission layer and the second electrode; the emission layer includes a first compound represented by any one of the following Formulae 1-1 and 1-2, and the electron transport region includes a second compound represented by any one of the following Formulae 2-1 and 2-2:
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito
  • Publication number: 20160351817
    Abstract: An organic light-emitting device including a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode and including an emission layer. The organic layer may include a first compound represented by Formula 1 and a second compound represented by Formula 2: When the first compound represented by Formula 1 and the second compound represented by Formula 2 are included in the emission layer, the organic light-emitting device may have improved (e.g. increased) efficiency and lifespan characteristics.
    Type: Application
    Filed: May 17, 2016
    Publication date: December 1, 2016
    Inventors: Seulong Kim, Naoyuki Ito, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160351816
    Abstract: An organic light-emitting device including a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode and including an emission layer; wherein the organic layer includes a host first compound represented by Formula 1 and a fluorescent dopant second compound represented by Formula 2: When the compound represented by Formula 1 includes a condensed cyclic substituent and the compound represented by Formula 2 includes a condensed cyclic core, the organic light-emitting device may have improved thermal stability, a lower driving voltage, and higher efficiency.
    Type: Application
    Filed: May 13, 2016
    Publication date: December 1, 2016
    Inventors: Seulong Kim, Naoyuki Ito, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160351818
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2:
    Type: Application
    Filed: May 18, 2016
    Publication date: December 1, 2016
    Inventors: Seulong Kim, Naoyuki Ito, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160322586
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer including a compound represented by Formula 1: An organic light-emitting device using the compound of Formula 1 may have high efficiency, low voltage, high luminance, and long lifespan.
    Type: Application
    Filed: April 26, 2016
    Publication date: November 3, 2016
    Inventors: Dongwoo Shin, Seulong Kim, Younsun Kim, Jungsub Lee, Naoyuki Ito
  • Patent number: 9436236
    Abstract: An information processing device includes a sensor section configured to detect a change in an attitude of a housing, a cooling fan configured to cool the housing, and a fan control circuit configured to control rotation of the cooling fan. When a change in the attitude of the housing has been detected by the sensor section, the fan control circuit stops the rotation of the cooling fan or decreases the number of rotation of the cooling fan to be lower than that in an ordinary operation. Thereafter, when a change in the attitude of the housing is no longer detected by the sensor section, the fan control circuit returns the rotation of the cooling fan to that in the ordinary operation.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: September 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naoyuki Ito, Kentaro Hideshima, Shinya Sato
  • Patent number: 9431615
    Abstract: An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including a dopant, a first host, and a second host. The dopant is a delayed fluorescence emitting material, and a triplet energy of the first host, EH1(T1) and a triplet energy of the second host, EH2(T1) are each equal to or greater than a triplet energy of the dopant, ED(T1). The triplet energy of the first host, EH1(T1) is in a range of about 2.6 eV to about 3.1 eV.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 30, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Younsun Kim, Seulong Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito
  • Publication number: 20160225992
    Abstract: An organic light-emitting device includes a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; and an electron transport region between the emission layer and the second electrode, wherein the emission layer includes a first material represented by Formula 1, and the electron transport region includes a second material represented by Formula 2:
    Type: Application
    Filed: June 24, 2015
    Publication date: August 4, 2016
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160218297
    Abstract: An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer and an electron transport region between the emission layer and the second electrode. The organic layer includes a first material represented by Formula 1 and a second material represented by Formula 2. The organic light-emitting device including the first and second materials may have improved efficiency and lifetime.
    Type: Application
    Filed: July 9, 2015
    Publication date: July 28, 2016
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Patent number: 9401484
    Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, a hole transport region between the first electrode and the emission layer, the hole transport region including at least one selected from a hole transport layer, a hole injection layer, and a buffer layer, and an electron transport region between the emission layer and the second electrode, the electron transport region including at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer, wherein the emission layer includes a compound represented by Formula 1 as described herein; and at least one of the hole blocking layer, the electron transport layer, and the electron injection layer in the electron transport region includes at least one compound represented by Formulae 2, 3, 4, or 5, as described herein.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seul-Ong Kim, Dong-Woo Shin, Youn-Sun Kim, Jung-Sub Lee, Naoyuki Ito
  • Publication number: 20160211459
    Abstract: An organic light-emitting device with improved efficiency and improved lifetime includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 21, 2016
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160211454
    Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: a first electrode; a second electrode; and wherein the organic layer comprises a first compound represented by Formula 1 and a second compound represented by Formula 2. The compositions of Formula 1 and Formula 2 are as defined herein.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 21, 2016
    Inventors: Seulong Kim, Naoyuki Ito, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160211458
    Abstract: An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 21, 2016
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Publication number: 20160211457
    Abstract: An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an organic layer including an emission layer between the first electrode and the second electrode.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 21, 2016
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee