Patents by Inventor Hirotaka Nanno
Hirotaka Nanno 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).
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Patent number: 10692946Abstract: An organic electroluminescence (EL) display panel includes pixels arranged in a matrix of rows and columns, and includes: a substrate; pixel electrode layers that are arranged on the substrate in the matrix; an insulating layer that is provided above the substrate and the pixel electrode layers, and has elongated openings and a grooved portion for each of the pixels, the openings extending in a column direction and being arranged in a row direction, the grooved portion having an upper opening and a bottom and being communicated with at least one of the openings in plan view; organic functional layers that are provided above the pixel electrode layers, and include light emitting layers in which organic electroluminescence occurs in the openings; and a light-transmissive counter electrode layer that is provided above the organic functional layers. Cross-sectional profiles of the openings taken along the row direction are uniform in the column direction.Type: GrantFiled: May 17, 2017Date of Patent: June 23, 2020Assignee: JOLED INC.Inventors: Jiro Yamada, Kazuma Teramoto, Kenichi Nendai, Kaoru Abe, Hideki Kobayashi, Hirotaka Nanno
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Publication number: 20190206957Abstract: An organic electroluminescence (EL) display panel includes pixels arranged in a matrix of rows and columns, and includes: a substrate; pixel electrode layers that are arranged on the substrate in the matrix; an insulating layer that is provided above the substrate and the pixel electrode layers, and has elongated openings and a grooved portion for each of the pixels, the openings extending in a column direction and being arranged in a row direction, the grooved portion having an upper opening and a bottom and being communicated with at least one of the openings in plan view; organic functional layers that are provided above the pixel electrode layers, and include light emitting layers in which organic electroluminescence occurs in the openings; and a light-transmissive counter electrode layer that is provided above the organic functional layers. Cross-sectional profiles of the openings taken along the row direction are uniform in the column direction.Type: ApplicationFiled: May 17, 2017Publication date: July 4, 2019Inventors: Jiro YAMADA, Kazuma TERAMOTO(deceased), Kenichi NENDAI, Kaoru ABE, Hideki KOBAYASHI, Hirotaka NANNO
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Patent number: 10158099Abstract: Organic light-emitting device manufacturing method performed by using a manufacturing apparatus placed where light from outside is blocked and a lighting device emitting light constituted of light components with wavelengths of 500 nm or longer is placed. The manufacturing apparatus includes a main body having an ejector ejecting ink containing organic light-emitting material and a light-transmissive tube forming at least part of a transport path connecting a tank containing the ink and the ejector. The method includes: removing the ink inside the transport path when a total exposure amount ET (lux×hours) satisfies ET??×17500 where ? is a constant satisfying ??1. ET is a product of E denoting light amount (lux) from the lighting device to which the tube is exposed and T denoting time amount (hours) over which the tube is exposed to the light from the lighting device.Type: GrantFiled: July 31, 2015Date of Patent: December 18, 2018Assignees: JOLED INC., SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hirotaka Nanno, Masaki Nishimura, Masashi Komatsu, Sadamu Yoshida
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Patent number: 9865816Abstract: A solution contains a functional material for constituting a function layer, and a solvent. The solvent contains a high-boiling-point solvent composed of one or more solvent components having a boiling point of not less than 200° C. The high-boiling-point solvent has a viscosity of from 13 mPa·s to 25 mPa·s, inclusive, and a surface tension of from 33 mN/m to 37 mN/m, inclusive.Type: GrantFiled: February 26, 2015Date of Patent: January 9, 2018Assignee: JOLED INC.Inventors: Masakazu Takata, Hirotaka Nanno
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Publication number: 20170237036Abstract: A problem to be solved of the invention is to provide a package of a liquid composition for an organic electroluminescent device including a phosphorescent material and a solvent with extended storage lifetime, which may be produced with high working efficiency. A solving means of the problem is a package of a liquid composition for an organic electroluminescent device having a liquid composition for an organic electroluminescent device including a phosphorescent material and a solvent, and a container that contains the liquid composition for an organic electroluminescent device, wherein the package of a liquid composition for an organic electroluminescent device has a transmittance of light, that is a wavelength component of from 500 nm to 780 nm, from outside of the package to inside of the container of 15% or less.Type: ApplicationFiled: July 31, 2015Publication date: August 17, 2017Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, JOLED INC.Inventors: Takahiro UEOKA, Hidenobu KAKIMOTO, Masashi KOMATSU, Masaki NISHIMURA, Hirotaka NANNO
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Publication number: 20170229680Abstract: Organic light-emitting device manufacturing method performed by using a manufacturing apparatus placed where light from outside is blocked and a lighting device emitting light constituted of light components with wavelengths of 500 nm or longer is placed. The manufacturing apparatus includes a main body having an ejector ejecting ink containing organic light-emitting material and a light-transmissive tube forming at least part of a transport path connecting a tank containing the ink and the ejector. The method includes: removing the ink inside the transport path when a total exposure amount ET (lux×hours) satisfies ET??×17500 where a is a constant satisfying ??1. ET is a product of E denoting light amount (lux) from the lighting device to which the tube is exposed and T denoting time amount (hours) over which the tube is exposed to the light from the lighting device.Type: ApplicationFiled: July 31, 2015Publication date: August 10, 2017Applicants: JOLED INC., SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hirotaka NANNO, Masaki NISHIMURA, Masashi KOMATSU, Sadamu YOSHIDA
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Publication number: 20170117471Abstract: A solution contains a functional material for constituting a function layer, and a solvent. The solvent contains a high-boiling-point solvent composed of one or more solvent components having a boiling point of not less than 200° C. The high-boiling-point solvent has a viscosity of from 13 mPa·s to 25 mPa·s, inclusive, and a surface tension of from 33 mN/m to 37 mN/m, inclusive.Type: ApplicationFiled: February 26, 2015Publication date: April 27, 2017Inventors: Masakazu TAKATA, Hirotaka NANNO
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Publication number: 20170077190Abstract: Pixels include red sub-pixels, green sub-pixels, first blue sub-pixels that emit dark blue light, and second blue sub-pixels that emit light blue light. Above a substrate, first blue pixel electrodes and first blue organic light-emitting layers are layered in regions of the first blue sub-pixels and second blue pixel electrodes and second blue organic light-emitting layers are layered in regions of the second blue sub-pixels. The first blue light-emitting layers and the second blue light-emitting layers are made from the same material. In a direction perpendicular to a top plane of the substrate, a distance between top surfaces of the first blue organic light-emitting layers and top surfaces of the first blue pixel electrodes is less than a distance between top surfaces of the second blue organic light-emitting layers and the surfaces of the second blue pixel electrodes.Type: ApplicationFiled: May 21, 2015Publication date: March 16, 2017Applicant: JOLED INC.Inventors: Jun HASHIMOTO, Hirotaka NANNO, Masakazu TAKATA, Toshiyuki AKIYAMA
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Publication number: 20170069697Abstract: In an organic EL display panel: banks that each extend in the column direction are disposed above a substrate; and red organic light-emitting layers, green organic light-emitting layers, and blue organic light-emitting layers each extend in the column direction and are disposed above the substrate in intervals between adjacent ones of the banks, wherein the banks define edges of sub-pixels of each color in the row direction, and in plan view of the substrate, surface areas of blue sub-pixels are greater than surface areas of red sub-pixels and greater than surface areas of green sub-pixels.Type: ApplicationFiled: May 21, 2015Publication date: March 9, 2017Applicant: JOLED INC.Inventors: Jun HASHIMOTO, Hirotaka NANNO, Masakazu TAKATA
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Patent number: 9555628Abstract: An ink jet device includes a plurality of ink jet heads each including an ink housing unit that houses therein ink, a pressure application unit that ejects a droplet of the ink by applying pressure to the ink, and a nozzle through which the droplet of the ink is ejected, wherein with respect to at least one of the plurality of ink jet heads, a preliminary drive operation and a main drive operation are performed, the preliminary drive operation is an operation of pushing the ink toward an outer edge of the nozzle to the extent that the droplet of the ink is not ejected through the nozzle, and the main drive operation is an operation of ejecting the droplet of the ink through the nozzle after performance of the preliminary drive operation.Type: GrantFiled: June 4, 2013Date of Patent: January 31, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masakazu Takata, Hirotaka Nanno, Yoshie Takahashi, Shinichiro Ishino, Noriyuki Matsusue
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Patent number: 9373822Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/dm3), surface tension ? (mN/m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.Type: GrantFiled: January 19, 2011Date of Patent: June 21, 2016Assignee: JOLED INC.Inventors: Hirotaka Nanno, Shinichiro Ishino, Tomoki Masuda, Yuko Kawanami, Noriyuki Matsusue
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Patent number: 9318722Abstract: A method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics is provided. The method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; positioning the inkjet device above the substrate; and causing the inkjet device to eject a drop of the ink onto the base layer. In the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/dm3), surface tension ? (mN/m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.Type: GrantFiled: January 19, 2011Date of Patent: April 19, 2016Assignee: JOLED INC.Inventors: Hirotaka Nanno, Shinichiro Ishino, Tomoki Masuda, Yuko Kawanami, Noriyuki Matsusue
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Patent number: 9299959Abstract: An ink jet device includes: an ink jet head including a nozzle through which ink droplet is ejected by applying voltage to piezoelectric element; and an ejection control unit controlling ink droplet ejection amount by varying voltage, voltage waveform of the voltage includes: preliminary vibration wave form part for preliminary drive operation of pushing ink toward outer edge of the nozzle to the extent that the droplet is not ejected; and main vibration waveform part for main drive operation of ejecting the droplet through the nozzle after the preliminary drive operation, the ejection control unit performs the preliminary and main drive operations according to the preliminary vibration waveform part and the main vibration waveform part, respectively, and proportion of displacement amount X of the voltage for the preliminary drive operation to displacement amount Y of the voltage for the main drive operation is set to 20%?X/Y?40%.Type: GrantFiled: June 4, 2013Date of Patent: March 29, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masashi Goto, Hirotaka Nanno, Masakazu Takata
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Patent number: 9266324Abstract: An inkjet device includes an inkjet head having a pressure applier applying voltage to ink contained in a ink reservoir, by executing a standby drive operation of applying a standby oscillation to the ink and a main drive operation of applying a main oscillation to cause the ink to be discharged from nozzles, such that the start of main drive operation execution is within a period where the displacement in the standby oscillation is oriented toward the interior of the nozzles in order to produce interference between the standby oscillation.Type: GrantFiled: July 2, 2013Date of Patent: February 23, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masakazu Takata, Hirotaka Nanno
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Patent number: 9153782Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/dm3), surface tension ? (mN/m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.Type: GrantFiled: January 19, 2011Date of Patent: October 6, 2015Assignee: JOLED INC.Inventors: Hirotaka Nanno, Shinichiro Ishino, Tomoki Masuda, Yuko Kawanami, Noriyuki Matsusue
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Publication number: 20150132879Abstract: An ink jet device includes a plurality of ink jet heads each including an ink housing unit that houses therein ink, a pressure application unit that ejects a droplet of the ink by applying pressure to the ink, and a nozzle through which the droplet of the ink is ejected, wherein with respect to at least one of the plurality of ink jet heads, a preliminary drive operation and a main drive operation are performed, the preliminary drive operation is an operation of pushing the ink toward an outer edge of the nozzle to the extent that the droplet of the ink is not ejected through the nozzle, and the main drive operation is an operation of ejecting the droplet of the ink through the nozzle after performance of the preliminary drive operation.Type: ApplicationFiled: June 4, 2013Publication date: May 14, 2015Applicant: PANASONIC CORPORATIONInventors: Masakazu Takata, Hirotaka Nanno, Yoshie Takahashi, Shinichiro Ishino, Noriyuki Matsusue
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Patent number: 9023239Abstract: An ink for an organic light-emitting element includes a first solvent, a second solvent, and a functional material. The first and second solvents have equal or similar boiling points. The first solvent is such that an imitatively formed functional layer formed by replacing the second solvent with the first solvent, in a light-emitting region of an organic light-emitting element, is thicker at both end portions than at a central portion and the top surfaces of the end portions are positioned higher than the top surface of the central portion. The second solvent is such that an imitatively formed functional layer formed by replacing the first solvent with the second solvent, in a light-emitting region of an organic light-emitting element, is thicker at a central portion than at both end portions and the top surface of the central portion is positioned higher than the top surfaces of the end portions.Type: GrantFiled: September 28, 2011Date of Patent: May 5, 2015Assignees: Joled Inc., Sumitomo Chemical Company, LimitedInventors: Yuko Kawanami, Shinichiro Ishino, Tomoki Masuda, Hirotaka Nanno, Noriyuki Matsusue
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Publication number: 20150118778Abstract: An inkjet device includes an inkjet head having a pressure applier applying voltage to ink contained in a ink reservoir, by executing a standby drive operation of applying a standby oscillation to the ink and a main drive operation of applying a main oscillation to cause the ink to be discharged from nozzles, such that the start of main drive operation execution is within a period where the displacement in the standby oscillation is oriented toward the interior of the nozzles in order to produce interference between the standby oscillation.Type: ApplicationFiled: July 2, 2013Publication date: April 30, 2015Applicant: PANASONIC CORPORATIONInventors: Masakazu Takata, Hirotaka Nanno
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Patent number: 8980678Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/m3), surface tension ? (mN·m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.Type: GrantFiled: January 19, 2011Date of Patent: March 17, 2015Assignee: Panasonic CorporationInventors: Hirotaka Nanno, Shinichiro Ishino, Tomoki Masuda, Yuko Kawanami, Noriyuki Matsusue
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Publication number: 20150072458Abstract: An ink jet device includes: an ink jet head including a nozzle through which ink droplet is ejected by applying voltage to piezoelectric element; and an ejection control unit controlling ink droplet ejection amount by varying voltage, voltage waveform of the voltage includes: preliminary vibration wave form part for preliminary drive operation of pushing ink toward outer edge of the nozzle to the extent that the droplet is not ejected; and main vibration waveform part for main drive operation of ejecting the droplet through the nozzle after the preliminary drive operation, the ejection control unit performs the preliminary and main drive operations according to the preliminary vibration waveform part and the main vibration waveform part, respectively, and proportion of displacement amount X of the voltage for the preliminary drive operation to displacement amount Y of the voltage for the main drive operation is set to 20%?X/Y?40%.Type: ApplicationFiled: June 4, 2013Publication date: March 12, 2015Applicant: PANASONIC CORPORATIONInventors: Masashi Goto, Hirotaka Nanno, Masakazu Takata