Patents by Inventor Kanjiro Sako
Kanjiro Sako 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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Publication number: 20140203255Abstract: An organic light-emitting element (10) including: an anode layer (12) formed on a substrate (11); a first through-hole portion (16) formed to pass through the anode layer (12); a dielectric layer (13) formed to cover an upper surface of the anode layer (12) and an inner surface of the first through-hole portion (16); plural recessed portions (18) formed at an upper surface of the dielectric layer (13) not to pass through the dielectric layer (13); a second through-hole portion (17) formed to pass through the anode layer (12) and the dielectric layer (13); an organic compound layer (14) that includes a light emitting layer formed to cover at least the upper surface of the dielectric layer (13), an inner surface of each of the recessed portions (18) and an inner surface of the second through-hole portion (17); and a cathode layer (15) formed on the organic compound layer (14).Type: ApplicationFiled: June 26, 2012Publication date: July 24, 2014Applicant: SHOWA DENKO K.K.Inventors: Kanjiro Sako, Kyousuke Masuya, Masaru Tajima, Katsumasa Hirose
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Patent number: 8735875Abstract: Provided is a light-emitting element having light emitting sections (17) that are distributed on a transparent substrate (11). Specifically, an electroluminescence element (10) includes the substrate having a bored part (16b) which is formed by recessing, below the light emitting sections, the surface of the substrate on a light emitting section side. By this configuration, the light-emitting element has a high light-emitting efficiency and exhibits required light distribution characteristics by controlling a direction of emitted light.Type: GrantFiled: May 26, 2010Date of Patent: May 27, 2014Assignee: Showa Denko K.K.Inventors: Masaru Tajima, Kanjiro Sako, Katsumasa Hirose, Kunio Kondo
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Publication number: 20140131690Abstract: An organic light emitting element (10) includes: an anode layer (12) formed on a substrate (11); a first dielectric layer (13) formed on the anode layer (12); a cathode layer (14) formed on the first dielectric layer (13); plural through-hole portions (16) passing through at least the anode layer (12) and the first dielectric layer (13); a second dielectric layer (19) formed in contact with an upper surface of the substrate (11) and a side surface of the anode layer (12); and a light emitting portion (17) formed in contact with the cathode layer (14), the side surface of the anode layer (12) and the upper surface of the second dielectric layer (19). Consequently, the organic light emitting element or the like having high light extraction efficiency and high light emission efficiency is provided.Type: ApplicationFiled: June 24, 2011Publication date: May 15, 2014Applicant: SHOWA DENKO K.K.Inventors: Kunio Kondo, Kanjiro Sako, Masaru Tajima, Katsumasa Hirose
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Publication number: 20140084278Abstract: An organic light-emitting element having a high light extraction efficiency and a high light emission efficiency is provided, by an organic light-emitting element (10) including: a transparent anode layer (12) formed on a substrate (11); a first penetrating portion (16) formed to penetrate the anode layer (12); a dielectric layer (13) formed to cover an upper surface of the anode layer (12) and an inner surface of the first penetrating portion (16); a second penetrating portion (17) formed to penetrate the anode layer (12) and the dielectric layer (13); an organic compound layer (14) that includes a light emitting layer formed to cover at least an inner surface of the second penetrating portion (17); and a cathode layer (15) formed on the organic compound layer (14), wherein a refractive index of the dielectric layer (13) is lower than a refractive index of the anode layer (12).Type: ApplicationFiled: February 15, 2012Publication date: March 27, 2014Applicant: SHOWA DENKO K.K.Inventors: Kanjiro Sako, Kyousuke Masuya, Masaru Tajima, Katsumasa Hirose
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Publication number: 20140048793Abstract: An organic light-emitting element having a high light extraction efficiency and a high light emission efficiency is provided, by an organic light-emitting element (10) including: an anode layer (12) formed on a substrate (11); a dielectric layer (13) formed on the anode layer (12); plural first recessed sections (16) formed by penetrating at least the dielectric layer (13); plural second recessed sections (17) formed on the upper surface of the dielectric layer (13) without penetrating the dielectric layer (13); an organic compound layer (14) including a light emitting layer formed to cover at least the upper surface of the dielectric layer (13), the inner surface of the first recessed sections (16) and the inner surface of the second recessed sections (17); and a cathode layer (15) formed on the organic compound layer (14).Type: ApplicationFiled: February 15, 2012Publication date: February 20, 2014Applicant: SHOWA DENKO K.K.Inventors: Kanjiro Sako, Kyousuke Masuya, Masaru Tajima, Katsumasa Hirose
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Publication number: 20130161679Abstract: An electroluminescent element (10) is provided with: an anode layer (12), a cathode layer (14) arranged to face the anode layer (12), pillars (13) formed in the space between the anode layer (12) and the cathode layer (14), and a light emitting layer (17) formed at a location other than the locations where the pillars (13) are formed; and the pillars (13) are formed so that the following conditions (1) and (2) are at least 95% satisfied. With this configuration, an electroluminescent element is provided that is unlikely to suffer from emission unevenness or short circuit and has high durability. (1) At least a part of the pillars (13) is included within a 10-?m diameter circular region the center of which is an arbitrary position on the surface of the anode layer (12). (2) At least a part of the light emitting layer (17) is included within a 20-?m diameter circular region the center of which is an arbitrary position on the surface of the anode layer (12).Type: ApplicationFiled: September 2, 2010Publication date: June 27, 2013Applicant: SHOWA DENKO K.K.Inventors: Kunio Kondo, Kanjiro Sako, Masaru Tajima, Katsumasa Hirose
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Publication number: 20120299469Abstract: Disclosed is an electroluminescent element (10) which includes an anode layer (12), a cathode layer (14), a first low refractive index layer (13) that is formed between the anode layer (12) and the cathode layer (14), a recessed portion (16) that penetrates at least the anode layer (12) and the first low refractive index layer (13), a second low refractive index layer (19) that is formed on the bottom of the recessed portion (16), and a light emitting portion (17) that is formed on the second low refractive index layer (19). The electroluminescent element (10) is also characterized in that the refractive index of the first low refractive index layer (13) and the refractive index of the second low refractive index layer (19) are lower than the refractive index of the light emitting portion (17). The electroluminescent element (10) provides an electroluminescent element which has high light-emitting efficiency when the light emitted from the light emitting portion is taken out from the substrate side.Type: ApplicationFiled: December 21, 2010Publication date: November 29, 2012Applicant: SHOWA DENKO K.K.Inventors: Kunio Kondo, Kanjiro Sako, Masaru Tajima, Katsumasa Hirose
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Publication number: 20120267614Abstract: Provided is a light-emitting element having light emitting sections (17) that are distributed on a transparent substrate (11). Specifically, an electroluminescence element (10) includes the substrate having a bored part (16b) which is formed by recessing, below the light emitting sections, the surface of the substrate on a light emitting section side. By this configuration, the light-emitting element has a high light-emitting efficiency and exhibits required light distribution characteristics by controlling a direction of emitted light.Type: ApplicationFiled: May 26, 2010Publication date: October 25, 2012Applicant: SHOWA DENKO K.K.Inventors: Masaru Tajima, Kanjiro Sako, Katsumasa Hirose, Kunio Kondo
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Patent number: 8268650Abstract: A process for manufacturing sealed organic EL devices includes a step of forming an organic EL layer on a region of an anode-mounted substrate having a substrate and an anode, the region including at least a bonding region in which a sealing member will be bonded and a region which is found inward the bonding region; a step of removing a portion of the organic EL layer which is found at least on the bonding region by applying plasma by a remote plasma method to expose the bonding region; a step of forming a cathode on the organic EL layer to complete an organic EL device; and a step of bonding a sealing member to the exposed bonding region.Type: GrantFiled: July 17, 2009Date of Patent: September 18, 2012Assignee: Showa Denko K.K.Inventors: Kunio Kondo, Kanjiro Sako, Katsumasa Hirose
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Publication number: 20120068167Abstract: [Problem] To provide a method for increasing a work function of an electrode by a simple operation and an organic EL element which has an anode of a high work function, exhibits excellent light emission properties (luminous efficiency, lifetime), has a good luminescent surface with small unevenness of luminance and few defects and has low leakage current. [Solution to Problem] A surface treatment method for electrodes, including a contact step of bringing an electrode made from a metal oxide into contact with a solution including a silane compound represented by the following formula (1) and/or a partially hydrolyzed condensate thereof and water, and an organic EL element having a luminescent layer and a cathode laminated in this order on a surface-treated surface of an anode made from a metal oxide, said anode having been surface-treated by the method.Type: ApplicationFiled: May 18, 2010Publication date: March 22, 2012Applicant: SHOWA DENKO K.K.Inventors: Kanjiro Sako, Kunio Kondo
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Publication number: 20110227107Abstract: Disclosed is a light-emitting element 10 including: an anode layer 12, a dielectric layer 13 and a cathode layer 14 successively laminated on a surface of a substrate 11; plural penetrating portions 16 that penetrate at least the dielectric layer 13 and extend from the anode layer 12 to the cathode layer 14; and a light-emitting portion 17 that covers at least between the both electrode layers on an inner surface of each of the plural penetrating portions 16, wherein a perimeter of a shape of each of the plural penetrating portions 16 on a surface of the anode layer 12 is longer than a perimeter of a minimum circle enclosing the shape, and a maximum width of the shape is in a range of 0.01 ?m to 5 ?m, thereby providing a light-emitting element having high luminance and light-emitting efficiency.Type: ApplicationFiled: May 26, 2011Publication date: September 22, 2011Applicant: SHOWA DENKO K.K.Inventors: Kunio KONDO, Kanjiro SAKO
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Publication number: 20110129951Abstract: A process for manufacturing sealed organic EL devices includes a step of forming an organic EL layer on a region of an anode-mounted substrate having a substrate and an anode, the region including at least a bonding region in which a sealing member will be bonded and a region which is found inward the bonding region; a step of removing a portion of the organic EL layer which is found at least on the bonding region by applying plasma by a remote plasma method to expose the bonding region; a step of forming a cathode on the organic EL layer to complete an organic EL device; and a step of bonding a sealing member to the exposed bonding region.Type: ApplicationFiled: July 17, 2009Publication date: June 2, 2011Applicant: SHOWA DENKO K.K.Inventors: Kunio Kondo, Kanjiro Sako, Katsumasa Hirose
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Publication number: 20110001423Abstract: [Problems] To provide processes that can increase the work function of electrodes by simple procedures, and organic EL devices that have an anode of high work function and a quality emitting surface showing excellent luminous properties (luminous efficiency, life) without uneven brightness or defects, and are free of leakage current. [Means for solving problems] A process for treating an electrode surface of the invention includes a contact step of bringing an electrode formed of a metal oxide or a metal into contact with an alkaline solution of a compound having an Si—O bond. An organic EL device according to the invention includes a metal oxide or metal anode that has been surface-treated by the process, and an emitting layer and a cathode laminated on the anode in this order.Type: ApplicationFiled: February 12, 2009Publication date: January 6, 2011Applicant: Showa Denko K.K.Inventors: Nobuhiro Natori, Kunio Kondo, Kanjiro Sako
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Publication number: 20090102372Abstract: Disclosed is a display device displaying a predetermined pattern comprising an organic electroluminescence element comprising a transparent anode, an organic electroluminescent compound layer, a cathode buffer layer patterned predetermined pattern and a cathode insulating substrate. The display device can display a predetermined pattern with high electrical power efficiency by a simple structure.Type: ApplicationFiled: May 9, 2007Publication date: April 23, 2009Applicant: SHOWA DENKO K.K.Inventors: Kunio Kondo, Kanjiro Sako, Takeo Watanabe
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Publication number: 20080050604Abstract: The invention provides an organic polymer light-emitting material, which is obtained by (co)polymerizing one or more polymerizable compounds having a substituent in which a polymerizable double bond moiety represented by formula (2): (the symbols have the same meanings as defined in the Description) is bonded to one of the carbon atoms of an aromatic ring, wherein at least one of the polymerizable compounds is an iridium complex represented by formula (1): (the symbols have the same meanings as defined in the Description). The material has a high emission efficiency and an good film-formability, and is suitably used for production of large-area device and mass-production thereof. Further, the invention provides organic light-emitting elements using the material in its light-emitting layer, and area light sources and image display devices using the element.Type: ApplicationFiled: May 18, 2005Publication date: February 28, 2008Inventors: Yoshiaki Takahashi, Tsuyoshi Katoh, Kanjiro Sako