Patents Assigned to LUMIOTEC INC.
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Publication number: 20210013444Abstract: 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: ApplicationFiled: February 19, 2019Publication date: January 14, 2021Applicant: Lumiotec Inc.Inventor: Junichi TANAKA
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Patent number: 10879497Abstract: 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: GrantFiled: February 9, 2018Date of Patent: December 29, 2020Assignee: LUMIOTEC INC.Inventor: Junichi Tanaka
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Patent number: 10879483Abstract: 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: GrantFiled: February 9, 2018Date of Patent: December 29, 2020Assignee: LUMIOTEC INC.Inventor: Junichi Tanaka
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Patent number: 10879496Abstract: 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: GrantFiled: April 14, 2017Date of Patent: December 29, 2020Assignee: LUMIOTEC INC.Inventors: Mitsuru Morimoto, Junichi Tanaka
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Patent number: 10804483Abstract: 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: GrantFiled: December 27, 2017Date of Patent: October 13, 2020Assignee: LUMIOTEC INC.Inventor: Junichi Tanaka
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Publication number: 20200099005Abstract: 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: ApplicationFiled: December 27, 2017Publication date: March 26, 2020Applicant: LUMIOTEC INC.Inventor: Junichi TANAKA
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Publication number: 20200083472Abstract: 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: ApplicationFiled: December 27, 2017Publication date: March 12, 2020Applicant: LUMIOTEC INC.Inventor: Junichi TANAKA
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Publication number: 20200028121Abstract: 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: ApplicationFiled: February 9, 2018Publication date: January 23, 2020Applicant: LUMIOTEC INC.Inventor: Junichi TANAKA
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Publication number: 20200013978Abstract: 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: ApplicationFiled: February 9, 2018Publication date: January 9, 2020Applicant: LUMIOTEC INC.Inventor: Junichi TANAKA
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Publication number: 20190363273Abstract: 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: ApplicationFiled: December 27, 2017Publication date: November 28, 2019Applicant: LUMIOTEC INC.Inventor: Junichi TANAKA
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Publication number: 20190355922Abstract: 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: ApplicationFiled: December 27, 2017Publication date: November 21, 2019Applicant: LUMIOTEC INC.Inventors: Junichi TANAKA, Mitsuru MORIMOTO
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Publication number: 20190319209Abstract: 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: ApplicationFiled: December 27, 2017Publication date: October 17, 2019Applicant: LUMIOTEC INC.Inventor: Junichi TANAKA
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Publication number: 20190148676Abstract: 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: ApplicationFiled: April 14, 2017Publication date: May 16, 2019Applicant: LUMIOTEC INC.Inventors: Mitsuru MORIMOTO, Junichi TANAKA
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Patent number: 10256432Abstract: 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: GrantFiled: March 6, 2017Date of Patent: April 9, 2019Assignee: LUMIOTEC INC.Inventors: Fujio Kajikawa, Joji Suzuki, Takashi Kawai, Yuji Yanagi
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Patent number: 10084146Abstract: 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: GrantFiled: February 29, 2016Date of Patent: September 25, 2018Assignee: LUMIOTEC INC.Inventors: Junichi Tanaka, Mitsuru Morimoto
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Publication number: 20180254428Abstract: 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: ApplicationFiled: March 6, 2017Publication date: September 6, 2018Applicant: LUMIOTEC INC.Inventors: Fujio KAJIKAWA, Joji SUZUKI, Takashi KAWAI, Yuji YANAGI
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Publication number: 20180047926Abstract: 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: ApplicationFiled: February 29, 2016Publication date: February 15, 2018Applicant: LUMIOTEC INC.Inventors: Junichi TANAKA, Mitsuru MORIMOTO
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Patent number: 9772096Abstract: 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: GrantFiled: September 4, 2013Date of Patent: September 26, 2017Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., LUMIOTEC INC.Inventors: Hiroyasu Aruga, Tadashi Katsume
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Patent number: 9484545Abstract: 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: GrantFiled: June 24, 2013Date of Patent: November 1, 2016Assignee: Lumiotec, Inc.Inventors: Mitsuru Morimoto, Junichi Tanaka, Koichi Mori
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Publication number: 20150207091Abstract: 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: ApplicationFiled: June 24, 2013Publication date: July 23, 2015Applicant: Lumiotec Inc.Inventors: Mitsuru Morimoto, Junichi Tanaka, Koichi Mori