Patents Assigned to LUMIOTEC INC.
  • Publication number: 20210013444
    Abstract: An organic EL element (10) has two first light emitting units (13A) which each include a first light emitting layer (16A) having one or two peak wavelengths in a wavelength region of 440 nm to 490 nm. The first light emitting units (13A) are respectively disposed at positions adjacent to inner sides of a first electrode (11) and a second electrode (12), and a substrate is disposed on outer sides of the first electrode (11) and the second electrode (12). White light obtained by light emission of the plurality of light emitting units has a continuous emission spectrum over at least a wavelength region of 380 nm to 780 nm and, in terms of light distribution characteristics of light emitted to the outside of a substrate (18), a luminance of the white light obtained through the substrate (18) has a substantially constant value in an angle range of 0 degrees to 30 degrees from an axis perpendicular to a surface direction of the substrate (18).
    Type: Application
    Filed: February 19, 2019
    Publication date: January 14, 2021
    Applicant: Lumiotec Inc.
    Inventor: Junichi TANAKA
  • Patent number: 10879497
    Abstract: An organic electroluminescent device having a white light, obtained by light emission from a plurality of light emission units, that comprises red light, green light, and blue light. Among the distribution characteristics of light emitted inside a substrate, the brightness of the white light has a maximum value within an angle range of 0-15° from an axis perpendicular to the planar direction of the substrate and the spectral radiance of the blue light at the maximum emission wavelength has a maximum value within the angle range of 0-20° from the axis perpendicular to the planar direction of the substrate.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: December 29, 2020
    Assignee: LUMIOTEC INC.
    Inventor: Junichi Tanaka
  • Patent number: 10879483
    Abstract: An organic electroluminescent device wherein, among the distribution characteristics of light emitted inside a substrate: the brightness of white light has a maximum value within an angle range of 20-60° from an axis perpendicular to the planar direction of the substrate; the spectral radiance of red light at the maximum emission wavelength and the spectral radiance of green light at the maximum emission wavelength have maximum values within the angle range of 30-70° from the axis perpendicular to the planar direction of the substrate; and the maximum values are greater than the value for spectral radiance of red light at the maximum emission wavelength and the value for the spectral radiance of green light at the maximum emission wavelength, in the axial direction perpendicular to the planar direction of the substrate.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: December 29, 2020
    Assignee: LUMIOTEC INC.
    Inventor: Junichi Tanaka
  • Patent number: 10879496
    Abstract: This organic EL element comprises a first light emitting unit that contains a red phosphorescent light emitting layer and a green phosphorescent light emitting layer, a second light emitting unit that contains a blue fluorescent light emitting layer, and a third light emitting unit that contains a blue fluorescent light emitting layer; and this organic EL element has a structure in which a positive electrode, the third light emitting unit, a second charge generating layer, the second light emitting unit, a first charge generating layer, the first light emitting unit and a negative electrode are sequentially laminated in this order. The white light obtained through light emission of the first, second and third light emitting units has one peak wavelength within the red wavelength range, one peak wavelength within the green wavelength range, and one or two peak wavelengths within the blue wavelength range.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: December 29, 2020
    Assignee: LUMIOTEC INC.
    Inventors: Mitsuru Morimoto, Junichi Tanaka
  • Patent number: 10804483
    Abstract: This organic electroluminescent element has a structure in which, between a first electrode and a second electrode, a plurality of light-emitting units are layered with a charge generation layer 14 interposed therebetween, and comprises a red light-emitting unit and a green light-emitting unit. In the organic electroluminescent element, yellow or orange light obtained by light emission from the two light-emitting units has a peak wavelength in each of a red wavelength range of 590-640 nm and a green wavelength range of 500-560 nm, and the difference between the peak wavelength of the yellow or orange light and the dominant wavelength of the yellow or orange light is 15-25 nm.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: October 13, 2020
    Assignee: LUMIOTEC INC.
    Inventor: Junichi Tanaka
  • Publication number: 20200099005
    Abstract: The organic electroluminescent element comprises, between a first electrode and a second electrode, a light-emitting unit including at least a light-emitting layer made from an organic compound. The organic electroluminescent element comprises at least one light-emitting unit including a light-emitting layer formed of a red light-emitting layer which emits red light having a peak wavelength in the red wavelength range. The red light obtained by light emission from the light-emitting unit has a peak wavelength in the red wavelength range of 590-640 nm. The difference between the peak wavelength of the red light and the dominant wavelength of the red light is 10 nm or less.
    Type: Application
    Filed: December 27, 2017
    Publication date: March 26, 2020
    Applicant: LUMIOTEC INC.
    Inventor: Junichi TANAKA
  • Publication number: 20200083472
    Abstract: This organic electroluminescent element has a structure in which, between a first electrode and a second electrode, a plurality of light-emitting units are layered with a charge generation layer 14 interposed therebetween, and comprises a red light-emitting unit and a green light-emitting unit. In the organic electroluminescent element, yellow or orange light obtained by light emission from the two light-emitting units has a peak wavelength in each of a red wavelength range of 590-640 nm and a green wavelength range of 500-560 nm, and the difference between the peak wavelength of the yellow or orange light and the dominant wavelength of the yellow or orange light is 15-25 nm.
    Type: Application
    Filed: December 27, 2017
    Publication date: March 12, 2020
    Applicant: LUMIOTEC INC.
    Inventor: Junichi TANAKA
  • Publication number: 20200028121
    Abstract: An organic electroluminescent device having a white light, obtained by light emission from a plurality of light emission units, that comprises red light, green light, and blue light. Among the distribution characteristics of light emitted inside a substrate, the brightness of the white light has a maximum value within an angle range of 0-15° from an axis perpendicular to the planar direction of the substrate and the spectral radiance of the blue light at the maximum emission wavelength has a maximum value within the angle range of 0-20° from the axis perpendicular to the planar direction of the substrate.
    Type: Application
    Filed: February 9, 2018
    Publication date: January 23, 2020
    Applicant: LUMIOTEC INC.
    Inventor: Junichi TANAKA
  • Publication number: 20200013978
    Abstract: An organic electroluminescent device wherein, among the distribution characteristics of light emitted inside a substrate: the brightness of white light has a maximum value within an angle range of 20-60° from an axis perpendicular to the planar direction of the substrate; the spectral radiance of red light at the maximum emission wavelength and the spectral radiance of green light at the maximum emission wavelength have maximum values within the angle range of 30-70° from the axis perpendicular to the planar direction of the substrate; and the maximum values are greater than the value for spectral radiance of red light at the maximum emission wavelength and the value for the spectral radiance of green light at the maximum emission wavelength, in the axial direction perpendicular to the planar direction of the substrate.
    Type: Application
    Filed: February 9, 2018
    Publication date: January 9, 2020
    Applicant: LUMIOTEC INC.
    Inventor: Junichi TANAKA
  • Publication number: 20190363273
    Abstract: This organic electroluminescent element comprises a light emission unit between a first electrode and a second electrode, wherein the relational expression nEML>nETL is satisfied in a light emission layer of the light emission unit that is closest to the first electrode, when a maximum emission wavelength (?max) is the wavelength at which an emission intensity (PINT(?)) that includes spectral luminous efficiency is maximized, said emission intensity (PINT(?)) that includes spectral luminous efficiency being calculated from formula (1), nEML is the refractive index of the light emission layer at the maximum emission wavelength (Amax), and nETL is the refractive index of an electron transport layer. Formula (1): PINT(?)=P(?)×V(?) (Where PINT(?): emission intensity that includes spectral luminous efficiency, P(?): emission intensity, and V(?): spectral luminous efficiency are all functions of the wavelength ?.
    Type: Application
    Filed: December 27, 2017
    Publication date: November 28, 2019
    Applicant: LUMIOTEC INC.
    Inventor: Junichi TANAKA
  • Publication number: 20190355922
    Abstract: This organic EL element has one blue light emitting unit, and has a continuous emission spectrum. The organic EL element has one or two peak wavelengths in a blue light wavelength range of 440 nm-490 nm within this emission spectrum, the correlated color temperature of white light is 3300K or greater, and according to a special color rendering index (Ri) of white light, R6 is 60 or greater and R12 is 30 or greater.
    Type: Application
    Filed: December 27, 2017
    Publication date: November 21, 2019
    Applicant: LUMIOTEC INC.
    Inventors: Junichi TANAKA, Mitsuru MORIMOTO
  • Publication number: 20190319209
    Abstract: This organic EL element has two blue light emitting units, and has, in the emission spectrum thereof, one or two peak wavelengths in a blue light wavelength range of 440 nm-490 nm. In this organic EL element, the correlated color temperature of white light is 3300K or greater, R6 is 60 or greater, and R12 is 30 or greater.
    Type: Application
    Filed: December 27, 2017
    Publication date: October 17, 2019
    Applicant: LUMIOTEC INC.
    Inventor: Junichi TANAKA
  • Publication number: 20190148676
    Abstract: This organic EL element comprises a first light emitting unit that contains a red phosphorescent light emitting layer and a green phosphorescent light emitting layer, a second light emitting unit that contains a blue fluorescent light emitting layer, and a third light emitting unit that contains a blue fluorescent light emitting layer; and this organic EL element has a structure in which a positive electrode, the third light emitting unit, a second charge generating layer, the second light emitting unit, a first charge generating layer, the first light emitting unit and a negative electrode are sequentially laminated in this order. The white light obtained through light emission of the first, second and third light emitting units has one peak wavelength within the red wavelength range, one peak wavelength within the green wavelength range, and one or two peak wavelengths within the blue wavelength range.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 16, 2019
    Applicant: LUMIOTEC INC.
    Inventors: Mitsuru MORIMOTO, Junichi TANAKA
  • Patent number: 10256432
    Abstract: In order to provide an organic EL panel, and a method for producing same, that makes it possible to have excellent moisture resistance and ensure sealing substrate-side transparency, provided is an organic EL panel comprising an element formation substrate (1) on which an organic EL element (2) is formed, a sealing substrate (3), and a sealing layer interposed with no gaps between the element formation substrate (1) and the sealing substrate (3), wherein: the sealing layer is constituted of an inner hygroscopic agent (4) covering the organic EL element (2), an outer peripheral hygroscopic agent (5) provided along an outer peripheral edge of the inner hygroscopic agent (4), and a marginal adhesive (6) provided along an outer peripheral edge of the outer peripheral hygroscopic agent (5); the inner hygroscopic agent (4) is constituted of an ultraviolet curable or thermosetting gel-like resin and a desiccant added at a weight ratio of 0.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: April 9, 2019
    Assignee: LUMIOTEC INC.
    Inventors: Fujio Kajikawa, Joji Suzuki, Takashi Kawai, Yuji Yanagi
  • Patent number: 10084146
    Abstract: The present invention provides an organic electroluminescent element which includes a first light emitting unit (23) that is positioned on the side of a cathode (21) and includes a first light emitting layer (28A), a second light emitting unit (24) that is adjacent to the first light emitting unit (23) with sandwiching a first charge generating layer (26A) and includes a second light emitting layer (28B), and a third light emitting unit (25) that is adjacent to the second light emitting unit (24) with sandwiching a second charge generating layer (26B) and includes a third light emitting layer (28C), and in which differences of the total thickness of the first light emitting unit (23) and the total thickness of the third light emitting unit (25) with the total thickness of the second light emitting unit (24) are 30 nm to 70 nm.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: September 25, 2018
    Assignee: LUMIOTEC INC.
    Inventors: Junichi Tanaka, Mitsuru Morimoto
  • Publication number: 20180254428
    Abstract: In order to provide an organic EL panel, and a method for producing same, that makes it possible to have excellent moisture resistance and ensure sealing substrate-side transparency, provided is an organic EL panel comprising an element formation substrate (1) on which an organic EL element (2) is formed, a sealing substrate (3), and a sealing layer interposed with no gaps between the element formation substrate (1) and the sealing substrate (3), wherein: the sealing layer is constituted of an inner hygroscopic agent (4) covering the organic EL element (2), an outer peripheral hygroscopic agent (5) provided along an outer peripheral edge of the inner hygroscopic agent (4), and a marginal adhesive (6) provided along an outer peripheral edge of the outer peripheral hygroscopic agent (5); the inner hygroscopic agent (4) is constituted of an ultraviolet curable or thermosetting gel-like resin and a desiccant added at a weight ratio of 0.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 6, 2018
    Applicant: LUMIOTEC INC.
    Inventors: Fujio KAJIKAWA, Joji SUZUKI, Takashi KAWAI, Yuji YANAGI
  • Publication number: 20180047926
    Abstract: The present invention provides an organic electroluminescent element which includes a first light emitting unit (23) that is positioned on the side of a cathode (21) and includes a first light emitting layer (28A), a second light emitting unit (24) that is adjacent to the first light emitting unit (23) with sandwiching a first charge generating layer (26A) and includes a second light emitting layer (28B), and a third light emitting unit (25) that is adjacent to the second light emitting unit (24) with sandwiching a second charge generating layer (26B) and includes a third light emitting layer (28C), and in which differences of the total thickness of the first light emitting unit (23) and the total thickness of the third light emitting unit (25) with the total thickness of the second light emitting unit (24) are 30 nm to 70 nm.
    Type: Application
    Filed: February 29, 2016
    Publication date: February 15, 2018
    Applicant: LUMIOTEC INC.
    Inventors: Junichi TANAKA, Mitsuru MORIMOTO
  • Patent number: 9772096
    Abstract: This illumination device includes an organic EL illumination panel installed in a baggage rack or the like in a fuselage of an aircraft, and a panel driving circuit that drives the organic EL illumination panel and is installed in a different place apart from the organic EL illumination panel in the fuselage to drive the organic EL illumination panel. The organic EL illumination panel includes a plurality of light emitting units including at least a light emitting layer, and a charge generation layer arranged between the plurality of light emitting units to thereby form a multi-photoemission structure, and has a thickness of 5 mm or less in a stacking direction.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 26, 2017
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., LUMIOTEC INC.
    Inventors: Hiroyasu Aruga, Tadashi Katsume
  • Patent number: 9484545
    Abstract: Provided is an organic electroluminescent element that can obtain white light with excellent color rendering properties and is particularly suitable for a light source of a lighting device. The organic electroluminescent element includes a plurality of light emitting units that are provided between a cathode and an anode and include at least a light emitting layer made of an organic compound. White light emitted from the plurality of light emitting units has a continuous emission spectrum (S) in a wavelength range of at least 380 nm to 780 nm. The emission spectrum (S) includes one peak wavelength (p1) in a red wavelength range (R) of 600 nm to 640 nm, one peak wavelength (p2) in a green wavelength range G of 500 nm to 540 nm, and two peak wavelengths (p3) and (p4) in a blue wavelength range B of 440 nm to 490 nm.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: November 1, 2016
    Assignee: Lumiotec, Inc.
    Inventors: Mitsuru Morimoto, Junichi Tanaka, Koichi Mori
  • Publication number: 20150207091
    Abstract: Provided is an organic electroluminescent element that can obtain white light with excellent color rendering properties and is particularly suitable for a light source of a lighting device. The organic electroluminescent element includes a plurality of light emitting units that are provided between a cathode and an anode and include at least a light emitting layer made of an organic compound. White light emitted from the plurality of light emitting units has a continuous emission spectrum (S) in a wavelength range of at least 380 nm to 780 nm. The emission spectrum (S) includes one peak wavelength (p1) in a red wavelength range (R) of 600 nm to 640 nm, one peak wavelength (p2) in a green wavelength range G of 500 nm to 540 nm, and two peak wavelengths (p3) and (pa) in a blue wavelength range B of 440 nm to 490 nm.
    Type: Application
    Filed: June 24, 2013
    Publication date: July 23, 2015
    Applicant: Lumiotec Inc.
    Inventors: Mitsuru Morimoto, Junichi Tanaka, Koichi Mori