Patents by Inventor Hiroshi Katagiri

Hiroshi Katagiri 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).

  • Publication number: 20210098732
    Abstract: A display panel including a substrate, anodes disposed on or above the substrate, light-emitting layers disposed on or above the anodes, a first intermediate layer disposed on or above the light-emitting layers, a second intermediate layer disposed on the first intermediate layer, and a cathode disposed on or above the second intermediate layer. The first intermediate layer includes a fluoride of a first metal or a complex of the first metal. The second intermediate layer includes a second metal. The anodes are light-transmissive and the cathode is light-reflective, or the anodes are light-reflective and the cathode is light-transmissive. The first metal is selected from a group consisting of alkali metals and alkaline earth metals. The second metal is selected from rare earth metals.
    Type: Application
    Filed: September 22, 2020
    Publication date: April 1, 2021
    Applicant: JOLED Inc.
    Inventors: Hiroshi KATAGIRI, Takahiro KOMATSU
  • Patent number: 10381589
    Abstract: An organic electroluminescence (EL) element including an anode, a light-emitting layer above the anode, a first functional layer on and in contact with the light-emitting layer, a second functional layer on and in contact with the first functional layer, and a cathode above the second functional layer. A lowest unoccupied molecular orbital (LUMO) level of the first functional layer is lower than at least one of a LUMO level of the second functional layer and a Fermi level of a metal material included in the second functional layer.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: August 13, 2019
    Assignee: JOLED INC.
    Inventors: Kosuke Mishima, Junko Tanaka, Hiroshi Katagiri, Takahiro Komatsu
  • Patent number: 10297776
    Abstract: An organic electroluminescence (EL) element including an anode, a cathode opposing the anode, a light-emitting layer between the anode and the cathode, a hole transport layer in contact with the light-emitting layer, between the light-emitting layer and the anode, and an electron transport layer in contact with the light-emitting layer, between the light-emitting layer and the cathode. A difference between a lowest unoccupied molecular orbital (LUMO) level of an organic material included in the light-emitting layer and a LUMO level of an organic material included in the electron transport layer is greater than a difference between a highest occupied molecular orbital (HOMO) level of an organic material included in the hole transport layer and a HOMO level of the organic material included in the light-emitting layer.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: May 21, 2019
    Assignee: JOLED INC.
    Inventors: Kosuke Mishima, Yoshiyuki Ota, Junko Tanaka, Takahiro Komatsu, Hiroshi Katagiri
  • Patent number: 10181582
    Abstract: An organic EL element including an anode; a light-emitting layer above the anode; a first interlayer on the light-emitting layer, the first interlayer including a fluoride of a first metal that is an alkali metal or alkaline earth metal; a second interlayer on the first interlayer, the second interlayer including a second metal that has a property of cleaving a bond between the first metal and fluorine in the fluoride; a cathode on the second interlayer; and a sorption layer above the cathode, the sorption layer including a third metal that has a property of taking up and holding at least one of moisture and oxygen. A thickness D1 of the first interlayer and a thickness D2 of the second interlayer satisfy 5%?D2/D1?25%.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: January 15, 2019
    Assignee: JOLED INC.
    Inventors: Noriyuki Matsusue, Hiroshi Katagiri
  • Publication number: 20170033314
    Abstract: An organic EL element including an anode; a light-emitting layer above the anode; a first interlayer on the light-emitting layer, the first interlayer including a fluoride of a first metal that is an alkali metal or alkaline earth metal; a second interlayer on the first interlayer, the second interlayer including a second metal that has a property of cleaving a bond between the first metal and fluorine in the fluoride; a cathode on the second interlayer; and a sorption layer above the cathode, the sorption layer including a third metal that has a property of taking up and holding at least one of moisture and oxygen. A thickness D1 of the first interlayer and a thickness D2 of the second interlayer satisfy 5%?D2/D1?25%.
    Type: Application
    Filed: February 24, 2015
    Publication date: February 2, 2017
    Applicant: JOLED INC.
    Inventors: Noriyuki MATSUSUE, Hiroshi KATAGIRI
  • Publication number: 20170033308
    Abstract: An organic electroluminescence (EL) element including an anode, a light-emitting layer above the anode, a first functional layer on and in contact with the light-emitting layer, a second functional layer on and in contact with the first functional layer, and a cathode above the second functional layer. A lowest unoccupied molecular orbital (LUMO) level of the first functional layer is lower than at least one of a LUMO level of the second functional layer and a Fermi level of a metal material included in the second functional layer.
    Type: Application
    Filed: July 27, 2016
    Publication date: February 2, 2017
    Applicants: JOLED INC., JAPAN DISPLAY INC.
    Inventors: Kosuke MISHIMA, Junko TANAKA, Hiroshi KATAGIRI, Takahiro KOMATSU
  • Publication number: 20170012231
    Abstract: An organic electroluminescence (EL) element including an anode, a cathode opposing the anode, a light-emitting layer between the anode and the cathode, a hole transport layer in contact with the light-emitting layer, between the light-emitting layer and the anode, and an electron transport layer in contact with the light-emitting layer, between the light-emitting layer and the cathode. A difference between a lowest unoccupied molecular orbital (LUMO) level of an organic material included in the light-emitting layer and a LUMO level of an organic material included in the electron transport layer is greater than a difference between a highest occupied molecular orbital (HOMO) level of an organic material included in the hole transport layer and a HOMO level of the organic material included in the light-emitting layer.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Applicants: JOLED INC., JAPAN DISPLAY INC.
    Inventors: Kosuke MISHIMA, Yoshiyuki OTA, Junko TANAKA, Takahiro KOMATSU, Hiroshi KATAGIRI
  • Patent number: 9490444
    Abstract: The present invention provides an organic light-emitting element with improved chemical stability at the interface between the light-emitting layer and the electron transport layer, which maintains excellent, stable luminous efficiency for a long period. For this purpose, one aspect of the present invention is an organic EL element having a substrate, and a hole injection layer, a buffer layer, a light-emitting layer, a regulation layer, an electron transport layer and a cathode which are sequentially layered on one side of the substrate. The regulation layer is made of NaF, which is not chemically reactive with the light-emitting layer or the electron transport layer, and the electron transport layer is made of a CT complex using a host material and an n-type dopant, which are both organic materials.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: November 8, 2016
    Assignee: JOLED INC.
    Inventors: Masaki Aonuma, Hiroshi Katagiri
  • Publication number: 20140159031
    Abstract: The present invention provides an organic light-emitting element with improved chemical stability at the interface between the light-emitting layer and the electron transport layer, which maintains excellent, stable luminous efficiency for a long period. For this purpose, one aspect of the present invention is an organic EL element having a substrate, and a hole injection layer, a buffer layer, a light-emitting layer, a regulation layer, an electron transport layer and a cathode which are sequentially layered on one side of the substrate. The regulation layer is made of NaF, which is not chemically reactive with the light-emitting layer or the electron transport layer, and the electron transport layer is made of a CT complex using a host material and an n-type dopant, which are both organic materials.
    Type: Application
    Filed: April 11, 2012
    Publication date: June 12, 2014
    Applicant: Panasonic Corporation
    Inventors: Masaki Aonuma, Hiroshi Katagiri
  • Patent number: 8522424
    Abstract: According to an aspect of an embodiment, a wiring connection apparatus comprises a tray including a plurality of wiring connection members for connecting a plurality of wiring and a tray holder body, which holds the tray, wherein the tray is rotatably provided in the tray holder body, and a wiring introduction opening for introducing the plurality of wiring into the tray is formed in proximity to an axis of rotation of the tray.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: September 3, 2013
    Assignee: Fujitsu Limited
    Inventors: Yoshinori Hoshino, Naoya Yamazaki, Hiroshi Katagiri, Hideaki Matsumoto
  • Patent number: 8153909
    Abstract: A coreless wiring board has no core board but a laminated structure in which a conductor layer and resin insulating layers are alternately laminated into a multilayer. Each of the resin insulating layers is formed to contain a glass cloth in an epoxy resin. A plurality of via holes is formed to penetrate each of the resin insulating layers, and a filled via conductor for electrically connecting the conductor layers is formed in the via holes respectively. A tip of the glass cloth contained in each of the resin insulating layers is protruded from an internal wall surface of the via hole and cuts into a sidewall of the filled via conductor.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 10, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroshi Katagiri, Toshiya Asano
  • Patent number: 8093503
    Abstract: A coreless wiring board has no core board but a laminated structure in which a conductor layer and resin insulating layers are alternately laminated into a multilayer. Each of the resin insulating layers is formed to contain a glass cloth in an epoxy resin. A plurality of via holes taking a shape of an inverse truncated cone and having steps on internal wall surfaces is formed to penetrate each of the resin insulating layers, and a filled via conductor for electrically connecting the conductors is formed in each of the via holes.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: January 10, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroshi Katagiri, Toshiya Asano
  • Publication number: 20100209063
    Abstract: A patch panel system includes a base panel having an array of openings and an array of engageable portions provided adjacent to the openings, and a first panel having a first opening and a first engageable portion which is arranged to be cooperatively engageable with the corresponding one of the engageable portions of the base panel, the first opening being configured to accommodate a first adapter, the corresponding of the openings in the base panel being configured to receive the first adapter therein.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 19, 2010
    Applicant: Fujitsu Limited
    Inventors: Yoshinori Hoshino, Hideo Araki, Hiroshi Katagiri
  • Publication number: 20090236138
    Abstract: A coreless wiring board has no core board but a laminated structure in which a conductor layer and resin insulating layers are alternately laminated into a multilayer. Each of the resin insulating layers is formed to contain a glass cloth in an epoxy resin. A plurality of via holes is formed to penetrate each of the resin insulating layers, and a filled via conductor for electrically connecting the conductor layers is formed in the via holes respectively. A tip of the glass cloth contained in each of the resin insulating layers is protruded from an internal wall surface of the via hole and cuts into a sidewall of the filled via conductor.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 24, 2009
    Inventors: Hiroshi KATAGIRI, Toshiya Asano
  • Publication number: 20090229874
    Abstract: A coreless wiring board has no core board but a laminated structure in which a conductor layer and resin insulating layers are alternately laminated into a multilayer. Each of the resin insulating layers is formed to contain a glass cloth in an epoxy resin. A plurality of via holes taking a shape of an inverse truncated cone and having steps on internal wall surfaces is formed to penetrate each of the resin insulating layers, and a filled via conductor for electrically connecting the conductors is formed in each of the via holes.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Inventors: Hiroshi KATAGIRI, Toshiya ASANO
  • Publication number: 20080163482
    Abstract: According to an aspect of an embodiment, a wiring connection apparatus comprises a tray including a plurality of wiring connection members for connecting a plurality of wiring and a tray holder body, which holds the tray, wherein the tray is rotatably provided in the tray holder body, and a wiring introduction opening for introducing the plurality of wiring into the tray is formed in proximity to an axis of rotation of the tray.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 10, 2008
    Inventors: Yoshinori Hoshino, Naoya Yamazaki, Hiroshi Katagiri, Hideaki Matsumoto
  • Publication number: 20080026216
    Abstract: An adhesive tape which is to be arranged between a lens and at least one of a plurality of chucks in an edge-machining apparatus comprises an adhesive face for being in contact with the lens. A measurement of an adhesive strength of the adhesive face is 4 gf (0.0392 N) or more when a polyethylene terephthalate plate which has been subjected to a surface treatment with a fluorine-modified silicone parting agent is used as a test plate in an adhesive strength test method based on a 180°-peeling method as defined in JIS Z 0237 “adhesive tape/adhesive sheet test method”. A technique which can be used to edge the lens in which an antifouling layer is formed by using a fluorine-containing silane compound having an excellent antifouling effect is also provided.
    Type: Application
    Filed: September 21, 2007
    Publication date: January 31, 2008
    Applicant: Seiko Epson Corporation
    Inventors: Akiko Kawase, Hiroshi Katagiri, Keiichi Suzuki, Katsuyoshi Takeshita
  • Patent number: 7278906
    Abstract: An adhesive tape which is to be arranged between a lens and at least one of a plurality of chucks in an edge-machining apparatus comprises an adhesive face for being in contact with the lens. A measurement of an adhesive strength of the adhesive face is 4 gf (0.0392 N) or more when a polyethylene terephthalate plate which has been subjected to a surface treatment with a fluorine-modified silicone parting agent is used as a test plate in an adhesive strength test method based on a 180°-peeling method as defined in JIS Z 0237 “adhesive tape/adhesive sheet test method”. A technique which can be used to edge the lens in which an antifouling layer is formed by using a fluorine-containing silane compound having an excellent antifouling effect is also provided.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: October 9, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Akiko Kawase, Hiroshi Katagiri, Keiichi Suzuki, Katsuyoshi Takeshita
  • Patent number: 7137701
    Abstract: A spectacle lens that can lower the slipperiness of a lens surface to an extent that allows an edging process by making without deteriorating the stain-proofing performance of the stain-proofing layer, when a stain-proofing layer is formed of two or more kinds of silane compounds including at least one or more kinds of fluorine-containing silane compounds, and as for the dynamic friction coefficient of lens surfaces defined by each of the two or more kinds of silane compounds as a single component, the highest value of the dynamic friction coefficients 1.4 times or more of the lowest value of the dynamic friction coefficients; and a manufacturing method thereof are provided.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: November 21, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Katagiri, Keiichi Suzuki, Akiko Kawase, Katsuyoshi Takeshita
  • Patent number: 7093717
    Abstract: The object of the invention is to construct a simple packaging structure having few components and capable of protecting a contained product against shock impacts coming from all directions. To this end, the packaging structure according to the present invention is made of synthetic resin with an elastic quality molded into a sheet form, and includes a first tray pack and a second tray pack which face each other and are adjoined to hold the contained product securely in place; wherein the first and second tray packs are provided with sustaining portions sustaining the periphery of the contained product.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: August 22, 2006
    Assignee: Fujitsu Limited
    Inventors: Shuhei Sakai, Miyuki Akimoto, Katsuya Fujii, Hiroshi Katagiri, Kiyonori Kusuda