Patents by Inventor Shigeru Kojima

Shigeru Kojima 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: 10535834
    Abstract: An object of the present invention is to provide a transparent electrode including a substrate having thereon a conductive layer containing silver as a main component, wherein the transparent electrode has an organic functional layer between the substrate and the conductive layer; and the organic functional layer contains a first organic compound represented by Formula (1) and a second organic compound having a different structure from a structure of the first organic compound,
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 14, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shun Furukawa, Shigeru Kojima, Kazuhiro Yoshida, Takeshi Hakii
  • Publication number: 20190288227
    Abstract: Provided is an organic electro-luminescence emission device wherein a color adjustment layer causes the chroma C* of transmitted light from the organic electro-luminescence emission device when not emitting light to be less than that of transmitted light from an organic electro-luminescence emission device not having a color adjustment layer when not emitting light, thus allowing the chroma of the transmitted light at non-emitting time to approach 0.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 19, 2019
    Inventors: Shigeru KOJIMA, Shusaku KON, Takaaki KUROKI, Takeshi HAKII, Koujirou SEKINE, Kou OSAWA
  • Patent number: 10305063
    Abstract: An object of the present invention is to provide a transparent organic electroluminescence element in which durability is excellent, a transparent lead-out electrode of low resistance is provided, and there is no uncomfortable feeling in visibility of the entire element. The transparent organic electroluminescence element according to the present invention is a transparent organic electroluminescence element including: at least an organic electroluminescence element portion and a lead-out electrode portion, in which two-sided light emission is capable of being performed, wherein a total light transmittance (%) of the lead-out electrode portion in a visible light range is in a range of 90% to 110%, with respect to a total light transmittance (%) of the organic electroluminescence element portion in a visible light range at the time of non-light emission.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 28, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takaaki Kuroki, Takatoshi Suematsu, Shigeru Kojima, Shusaku Kon
  • Publication number: 20190006614
    Abstract: An object of the present invention is to provide a transparent organic electroluminescence element in which durability is excellent, a transparent lead-out electrode of low resistance is provided, and there is no uncomfortable feeling in visibility of the entire element. The transparent organic electroluminescence element according to the present invention is a transparent organic electroluminescence element including: at least an organic electroluminescence element portion and a lead-out electrode portion, in which two-sided light emission is capable of being performed, wherein a total light transmittance (%) of the lead-out electrode portion in a visible light range is in a range of 90% to 110%, with respect to a total light transmittance (%) of the organic electroluminescence element portion in a visible light range at the time of non-light emission.
    Type: Application
    Filed: August 25, 2016
    Publication date: January 3, 2019
    Inventors: Takaaki KUROKI, Takatoshi SUEMATSU, Shigeru KOJIMA, Shusaku KON
  • Patent number: 10103347
    Abstract: A transparent electrode includes: a substrate; and a conductive metal layer on the substrate. The conductive metal layer has a thin metal wire and a plating layer. The plating layer covers the thin metal wire. The transparent electrode further includes a transparent conductive layer on a surface of the substrate on a side on which the thin metal wire is formed. The transparent conductive layer covers the substrate and the conductive metal layer. The thin metal wire is formed using a metal nanoparticle ink or a metal complex ink.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 16, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shigeru Kojima, Kazuhiro Yoshida, Shun Furukawa, Takeshi Hakii
  • Publication number: 20180269430
    Abstract: An object of the present invention is to provide an organic EL device having a high light transmittance and a small difference in light transmittance between a light emitting region and a non-light emitting region.
    Type: Application
    Filed: June 1, 2016
    Publication date: September 20, 2018
    Inventors: Shigeru KOJIMA, Shusaku KON, Takatoshi SUEMATSU, Takaaki KUROKI
  • Publication number: 20180212184
    Abstract: An object of the present invention is to provide an organic electroluminescent element which is excellent in high-temperature resistance, bending resistance, and light transmittance. The organic electroluminescent element according to the present invention includes an organic functional layer, which includes a light emitting layer interposed by a pair of transparent electrodes, between an element substrate and a sealing substrate, wherein both the element substrate and the sealing substrate have a gas barrier layer, and an anti-reflection film is laminated on the surface at a light emission side of at least one of the element substrate and the sealing substrate via a pressure-sensitive adhesive layer.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 26, 2018
    Inventors: Toshiya KONDO, Hiromoto II, Shigeru KOJIMA
  • Patent number: 9923165
    Abstract: Provided are: a transparent electrode which exhibits excellent resistance to high temperature and high humidity, while having surface smoothness; a method for producing this transparent electrode; and an electronic device which has improved reliability by using this transparent electrode. A transparent electrode is configured to comprise a metal thin wire pattern that is formed on one main surface of a transparent substrate using metal nanoparticles and a metal oxide layer that has a surface roughness of 5 nm or less and is formed on the main surface of the transparent substrate so as to cover the surface of the metal thin wire pattern.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: March 20, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazuhiro Yoshida, Shigeru Kojima, Shun Furukawa, Takeshi Hakii, Toshiyuki Kinoshita
  • Patent number: 9917263
    Abstract: A transparent electrode includes a nitrogen-containing layer constituted by using a compound containing a nitrogen atom (N), an electrode layer containing silver (Ag) as a main component, which is disposed adjacent to the nitrogen-containing layer, and two high-refractive index layers each having a higher refractive index than that of the nitrogen-containing layer, which are disposed so that the electrode layer and the nitrogen-containing layer are sandwiched between the high-refractive index layers.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: March 13, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazuhiro Yoshida, Takeshi Hakii, Toshiyuki Kinoshita, Shigeru Kojima
  • Publication number: 20180053911
    Abstract: A transparent electrode includes a substrate, a conductive metal layer, a metal adhesion layer and a transparent conductive layer. The conductive metal layer is on the substrate. The metal adhesion layer is between the substrate and the conductive metal layer. The transparent conductive layer covers the substrate, the metal adhesion layer and the conductive metal layer. The conductive metal layer has a thin metal wire formed using a metal nanoparticle ink or a metal complex ink.
    Type: Application
    Filed: November 16, 2015
    Publication date: February 22, 2018
    Inventors: Kazuhiro YOSHIDA, Shigeru KOJIMA, Takeshi HAKII, Shun FURUKAWA
  • Patent number: 9899624
    Abstract: A transparent conductor which includes: a conductive layer that is formed of a metal material having a thickness of 15 nm or less and a platinum group element-containing layer including at least one of Pt and Pd, wherein, when an optical admittance at an interface on a side of the admittance-adjusting layer of the conductive layer at a wavelength of 570 nm is expressed as Y1=x1+iy1 and an optical admittance at an interface on a side opposite to the admittance-adjusting layer of the conductive layer at a wavelength of 570 nm is expressed as Y2=x2+iy2, at least one of x1 and x2 is 1.6 or more.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 20, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeshi Hakii, Toshiyuki Kinoshita, Shigeru Kojima, Kazuhiro Yoshida
  • Publication number: 20180040846
    Abstract: The present invention addresses the problem of providing a transparent electrode having a low resistance and high storage stability, a method for manufacturing the transparent electrode, and an organic electroluminescent element. This transparent electrode wherein a metal conductive layer is provided on a substrate is characterized in that: the metal conductive layer has a metal fine line, and a plating layer covering the metal fine line; the transparent electrode has a transparent conductive layer on a substrate surface on the side on which the metal fine line is formed, said transparent conductive layer covering the substrate and the metal conductive layer; and the metal fine line is formed using a metal nano-particle ink or a metal complex ink.
    Type: Application
    Filed: November 27, 2015
    Publication date: February 8, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Shigeru KOJIMA, Kazuhiro YOSHIDA, Shun FURUKAWA, Takeshi HAKII
  • Publication number: 20180013090
    Abstract: An object of the present invention is to provide a transparent electrode including a substrate having thereon a conductive layer containing silver as a main component, wherein the transparent electrode has an organic functional layer between the substrate and the conductive layer; and the organic functional layer contains a first organic compound represented by Formula (1) and a second organic compound having a different structure from a structure of the first organic compound,
    Type: Application
    Filed: February 1, 2016
    Publication date: January 11, 2018
    Inventors: Shun FURUKAWA, Shigeru KOJIMA, Kazuhiro YOSHIDA, Takeshi HAKII
  • Publication number: 20170213996
    Abstract: Provided is an organic electroluminescent element that makes it possible to use a silver electride of a thin film as a cathode. The organic electroluminescent element is provided with a transparent electrode comprising silver as a main component, a counter electrode arranged so as to face the transparent electrode, and a light-emitting unit that is sandwiched between the transparent electrode and the counter electrode. A calcium-containing layer is provided adjacent to the transparent electrode between the transparent electrode and the light-emitting unit. The transparent electrode is used as a cathode and the counter electrode is used as an anode.
    Type: Application
    Filed: July 10, 2015
    Publication date: July 27, 2017
    Inventors: Shun FURUKAWA, Toshiyuki KINOSHITA, Shigeru KOJIMA, Kazuhiro YOSHIDA, Takeshi HAKII
  • Publication number: 20170200913
    Abstract: Provided are: a transparent electrode which exhibits excellent resistance to high temperature and high humidity, while having surface smoothness; a method for producing this transparent electrode; and an electronic device which has improved reliability by using this transparent electrode. A transparent electrode is configured to comprise a metal thin wire pattern that is formed on one main surface of a transparent substrate using metal nanoparticles and a metal oxide layer that has a surface roughness of 5 nm or less and is formed on the main surface of the transparent substrate so as to cover the surface of the metal thin wire pattern.
    Type: Application
    Filed: July 24, 2015
    Publication date: July 13, 2017
    Inventors: Kazuhiro YOSHIDA, Shigeru KOJIMA, Shun FURUKAWA, Takeshi HAKII, Toshiyuki KINOSHITA
  • Publication number: 20160380227
    Abstract: This organic electroluminescent element is provided with: a transparent electrode that is mainly composed of silver (Ag); a reflective electrode that is formed of a metal; and at least one light emitting layer that is provided between the transparent electrode and the reflective electrode. This organic electroluminescent element is configured such that the difference between the maximum value and the minimum value of element reflectance of light having a wavelength of 450-750 nm is 30% or less.
    Type: Application
    Filed: January 29, 2015
    Publication date: December 29, 2016
    Inventors: Shigeru KOJIMA, Takeshi HAKII, Toshiyuki KINOSHITA, Kazuhiro YOSHIDA, Shun FURUKAWA
  • Publication number: 20160293880
    Abstract: A transparent conductor which includes: a conductive layer that is formed of a metal material having a thickness of 15 nm or less and a platinum group element-containing layer including at least one of Pt and Pd, wherein, when an optical admittance at an interface on a side of the admittance-adjusting layer of the conductive layer at a wavelength of 570 nm is expressed as Y1=x1+iy1 and an optical admittance at an interface on a side opposite to the admittance-adjusting layer of the conductive layer at a wavelength of 570 nm is expressed as Y2=x2+iy2, at least one of x1 and x2 is 1.6 or more.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 6, 2016
    Inventors: Takeshi HAKII, Toshiyuki KINOSHITA, Shigeru KOJIMA, Kazuhiro YOSHIDA
  • Patent number: 9379173
    Abstract: In a light emitting panel, organic EL panels are laminated in a step-like shape in a front-back direction to form organic EL panel groups, and the organic EL panel groups are further laminated in a step-like shape in a left-right direction. Each of the organic EL panels comprises a power feed part at one side of the transparent support substrate in the left-right direction. The power feed part of each of the organic EL panels is aligned with other power feed parts in the front-back direction at one side of the left-right direction, and is disposed at a position that allows the power feed part to overlap with a laminate of an organic EL panel of an adjacent organic EL panel group.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: June 28, 2016
    Assignee: Konica Minolta, Inc.
    Inventors: Shigeru Kojima, Kazuo Genda
  • Publication number: 20150357581
    Abstract: A transparent electrode includes a nitrogen-containing layer constituted by using a compound containing a nitrogen atom (N), an electrode layer containing silver (Ag) as a main component, which is disposed adjacent to the nitrogen-containing layer, and two high-refractive index layers each having a higher refractive index than that of the nitrogen-containing layer, which are disposed so that the electrode layer and the nitrogen-containing layer are sandwiched between the high-refractive index layers.
    Type: Application
    Filed: January 8, 2014
    Publication date: December 10, 2015
    Applicant: Konica Minolta Inc.
    Inventors: Kazuhiro YOSHIDA, Takeshi HAKII, Toshiyuki KINOSHITA, Shigeru KOJIMA
  • Patent number: 9006711
    Abstract: Disclosed is a white light-emitting organic electroluminescent device, which is excellent in stability of emission chromaticity over a long operation period, while having high electrical efficiency, long life, excellent storage stability and excellent color rendering properties. Also disclosed is an illuminating device using such an organic electroluminescent device. Specifically disclosed is an organic electroluminescent device having a light-emitting layer between an anode and a cathode, which is characterized by comprising a light-emitting layer A having a maximum emission wavelength of not more than 480 nm and containing a phosphorescent dopant having a maximum emission wavelength of not more than 480 nm, and a light-emitting layer B arranged between the light-emitting layer A and the anode, which has a maximum emission wavelength of not less than 510 nm and contains a phosphorescent dopant.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: April 14, 2015
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Yoriko Nakayama, Tomoyuki Nakayama, Kunimasa Hiyama, Shigeru Kojima