Patents by Inventor Kouichi Rokuhara
Kouichi Rokuhara 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: 10333067Abstract: A method for manufacturing an organic electronic element according to one embodiment includes: a hole injection layer coating film formation step of applying a hole injection layer coating liquid containing a material having an electron-accepting property on a plastic substrate 10 to form a hole injection layer coating film 22b; and a heat treatment step of heating the hole injection layer coating film by irradiating the hole injection layer coating film with an infrared ray to form a hole injection layer. The hole injection layer coating film has absorption in a first wavelength range of 1.2 ?m to 5.0 ?m, and the infrared ray is an infrared ray in which 80% or more of total radiation energy of the infrared ray in a wavelength range of 1.2 ?m to 10.0 ?m is included in the first wavelength range.Type: GrantFiled: June 21, 2016Date of Patent: June 25, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Shuichi Sassa, Shinichi Morishima, Kouichi Rokuhara
-
Publication number: 20180182964Abstract: A method for manufacturing an organic electronic element according to one embodiment includes: a hole injection layer coating film formation step of applying a hole injection layer coating liquid containing a material having an electron-accepting property on a plastic substrate 10 to form a hole injection layer coating film 22b; and a heat treatment step of heating the hole injection layer coating film by irradiating the hole injection layer coating film with an infrared ray to form a hole injection layer. The hole injection layer coating film has absorption in a first wavelength range of 1.2 ?m to 5.0 ?m, and the infrared ray is an infrared ray in which 80% or more of total radiation energy of the infrared ray in a wavelength range of 1.2 ?m to 10.0 ?m is included in the first wavelength range.Type: ApplicationFiled: June 21, 2016Publication date: June 28, 2018Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Shuichi SASSA, Shinichi MORISHIMA, Kouichi ROKUHARA
-
Publication number: 20180175298Abstract: A method for manufacturing an organic electronic element according to one embodiment includes: a step of coating a substrate 10 with a coating liquid containing a material having a crosslinking group to form a coating film; and a step of forming an organic thin film as an organic functional layer 23 by irradiating the coating film with an infrared ray to heat the coating film 23a and crosslink the crosslinking group. The coating film has an absorption peak at any wavelength in a first wavelength range of 1.2 ?m to 5.0 ?m. The infrared ray has a maximum radiation intensity in a wavelength range of 1.2 ?m to 10.0 ?m at any wavelength in the first wavelength range and in which 80% or more of total radiation energy of the infrared ray in the wavelength range of 1.2 ?m to 10.0 ?m is included in the first wavelength range.Type: ApplicationFiled: June 21, 2016Publication date: June 21, 2018Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Shuichi SASSA, Kouichi ROKUHARA
-
Publication number: 20180053868Abstract: A photoelectric conversion device comprising a supporting substrate, an electrode, an active layer, an electrode and a reflection plate laminated in this order and giving an average transmittance of 10% or more of light in a wavelength range of from 400 to 700 nm, wherein the reflection plate has an average transmittance of 70% or more of light in a wavelength range of from 400 to 700 nm and the active layer has an average reflectance of 50% or more of light in a region of ±150 nm of the light absorption peak wavelength.Type: ApplicationFiled: March 15, 2016Publication date: February 22, 2018Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Kouichi ROKUHARA
-
Patent number: 9437821Abstract: When a thin film is formed by an application method, damage to a substrate or existing electrodes and functional layers can be reduce. A method for manufacturing an electronic device comprising two or more electrodes, and an organic thin film provided between the two or more electrodes, the method comprising the steps of: forming a coating film by applying a coating liquid that comprises a material having a crosslinking group, and forming the organic thin film by repeating an irradiation of electromagnetic waves to the coating film to cross-link with the crosslinking group.Type: GrantFiled: October 7, 2013Date of Patent: September 6, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kouichi Rokuhara, Shuichi Sassa
-
Publication number: 20150280126Abstract: When a thin film is formed by an application method, damage to a substrate or existing electrodes and functional layers can be reduce. A method for manufacturing an electronic device comprising two or more electrodes, and an organic thin film provided between the two or more electrodes, the method comprising the steps of: forming a coating film by applying a coating liquid that comprises a material having a crosslinking group, and forming the organic thin film by repeating an irradiation of electromagnetic waves to the coating film to cross-link with the crosslinking group.Type: ApplicationFiled: October 7, 2013Publication date: October 1, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kouichi Rokuhara, Shuichi Sassa
-
Patent number: 8277273Abstract: A method of producing an organic EL element according to the present invention is a method of producing an organic electroluminescent element by stacking at least an anode, a cathode, and an organic light-emitting layer disposed between the anode and the cathode. The method includes an organic light-emitting layer formation step for forming the organic light-emitting layer by applying an organic light-emitting ink having an organic light-emitting material and a solvent to a light-emitting layer formation region on which the organic light-emitting layer is to be formed, by using a relief printing plate that has a relief portion in a shape corresponding to the shape of light-emitting layer formation region and has a plurality of grooves formed on a surface portion of the relief portion.Type: GrantFiled: March 10, 2009Date of Patent: October 2, 2012Assignee: Sumitomo Chemical Company, LimitedInventor: Kouichi Rokuhara
-
Publication number: 20110315971Abstract: A method for manufacturing an organic electroluminescent device that comprises a substrate, a plurality of organic electroluminescent elements provided on the substrate, and a partition sectioning the plurality of organic electroluminescent elements, in which the plurality of organic electroluminescent elements comprise a light-emitting layer formed by a coating method and a pair of electrodes, and include a red light-emitting layer, a green light-emitting layer or a blue light-emitting layer emitting blue light as the light-emitting layer, the method comprising a step of preparing the partition having lyophilic properties and the substrate provided with one electrode of the pair of electrodes, ink supplying steps of supplying various inks, a step of solidifying the supplied inks, and a step of forming the other electrode of the pair of electrodes, wherein a red ink supplying step is performed at the last among the ink supplying steps.Type: ApplicationFiled: March 1, 2010Publication date: December 29, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Kouichi Rokuhara
-
Publication number: 20110177304Abstract: An ink used for forming an organic layer of an organic electroluminescent element comprising a pair of electrodes and the organic layer interposed between the electrodes by a printing method. The ink comprises a first solvent having a boiling point of equal to or more than 220° C. and a constituent material of the organic layer and has a surface tension of less than 34 mN/m.Type: ApplicationFiled: September 2, 2009Publication date: July 21, 2011Applicant: Sumitomo Chemical Company, LimitedInventor: Kouichi Rokuhara
-
Publication number: 20110121282Abstract: The present invention provides a method of manufacturing an organic EL element using a relief printing method that can prevent color mixing caused during ink supply, a light-emitting device with which color mixing can be prevented, and a display device comprising the light-emitting device.Type: ApplicationFiled: July 23, 2009Publication date: May 26, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kouichi Rokuhara, Tomonori Matsumuro
-
Publication number: 20110025200Abstract: A method of producing an organic EL element according to the present invention is a method of producing an organic electroluminescent element by stacking at least an anode, a cathode, and an organic light-emitting layer disposed between the anode and the cathode. The method comprises an organic light-emitting layer formation step for forming the organic light-emitting layer by applying an organic light-emitting ink comprising an organic light-emitting material and a solvent to a light-emitting layer formation region on which the organic light-emitting layer is to be formed, by using a relief printing plate that has a relief portion in a shape corresponding to the shape of light-emitting layer formation region and has a plurality of grooves formed on a surface portion of the relief portion.Type: ApplicationFiled: March 10, 2009Publication date: February 3, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Kouichi Rokuhara
-
Publication number: 20110018433Abstract: A method of producing an organic electroluminescent element according to the present invention is a method of producing an organic electroluminescent element by stacking on a substrate at least a cathode, an anode, and an organic light-emitting layer disposed between the cathode and the anode. The method of the present invention is characterized by comprising: an organic light-emitting layer forming step of forming the organic light-emitting layer by applying an ink comprising an organic light-emitting material to an inside of a partition wall built to surround a pixel region for forming a pixel; and a surface treating step of treating a surface before the organic light-emitting layer forming step with an organic solvent from the side where the partition wall is built with respect to the substrate.Type: ApplicationFiled: March 11, 2009Publication date: January 27, 2011Applicant: SUMITOMO CHEMCIAL COMPANY, LIMITEDInventor: Kouichi Rokuhara
-
Publication number: 20100295033Abstract: An organic electroluminescence element includes: a substrate (111); a first electrode layer (121) provided above the surface of the substrate; an organic base layer (141) that is provided covering at least a part of the first electrode layer, and is made of a material insoluble in water; a bank (131B) that is provided covering a part of the organic base layer, and is arranged with a plurality of pixel areas (132B) provided above the organic base layer; an organic light-emitting layer (142) provided within the pixel areas; and a second electrode layer (122) provided above the organic light-emitting layer.Type: ApplicationFiled: December 17, 2008Publication date: November 25, 2010Inventors: Kouichi Rokuhara, Satoshi Amamiya