Patents by Inventor Yuichiro Itai

Yuichiro Itai 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: 20200033508
    Abstract: An optical thin film formed by laminating, from the substrate side, an interlayer, a silver-containing metal layer that contains silver, and a dielectric layer, in which an anchor metal diffusion control layer provided between the interlayer and the silver-containing metal layer, an anchor region which includes an oxide of the anchor metal and has a surface energy that is less than the surface energy of the silver-containing metal layer and larger than the surface energy of the anchor metal diffusion control layer is provided between the anchor metal diffusion control layer and the silver-containing metal layer, a cap region which includes an oxide of the anchor metal is provided between the silver-containing metal layer and the dielectric layer, and the total film thickness of the silver-containing metal layer, the anchor region, and the cap region is 6 nm or less.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 30, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Shinichiro SONODA, Tatsuya YOSHIHIRO, Kenichi UMEDA, Yuichiro ITAI, Seigo Nakamura
  • Publication number: 20200002804
    Abstract: This method for producing a transparent optical film includes a film formation step of forming a silver layer and a high standard electrode potential metal layer so as to be laminated on a substrate, the film formation step including a silver deposition step of forming the silver layer, at a thickness of 6 nm or less by vacuum deposition, and a high standard electrode potential metal deposition step of forming the high standard electrode potential metal layer formed of a high standard electrode potential metal having a higher standard electrode potential than that of silver by vacuum deposition, and an alloying step of forming a silver alloy layer by diffusing the high standard electrode potential metal within the silver layer by performing a heating treatment at a temperature of 50° C. or higher and 400° C. or lower.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Seigo NAKAMURA, Kenichi UMEDA, Yuichiro ITAI, Shinichiro SONODA
  • Patent number: 10468597
    Abstract: A method of manufacturing an organic semiconductor film, including a step of moving a coating blade surface positioned to face a substrate surface in a first direction parallel to the substrate surface, while in contact with an organic semiconductor solution supplied to a portion between the blade surface and the substrate surface to form the organic semiconductor film in the first direction. The coating blade is disposed to have first and second gaps having different separation gap sizes with the substrate surface in a region where the blade surface and the organic semiconductor solution are in contact. The first gap is positioned on an upstream side of the first direction and the second gap, which is smaller than the first gap, is provided on a downstream side. A second gap size is a minimum distance between the substrate surface and the blade surface and is 40 ?m or less.
    Type: Grant
    Filed: July 21, 2018
    Date of Patent: November 5, 2019
    Assignees: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Seigo Nakamura, Yoshiki Maehara, Yuichiro Itai, Yoshihisa Usami, Junichi Takeya
  • Patent number: 10388903
    Abstract: An organic electroluminescent element having high durability can be provided by using a compound represented by the following general formula (1), wherein: Z1 to Z4 each represent a carbon atom or a nitrogen atom; A1 represents an atomic group which is combined with Z1 and a nitrogen atom to form a 5- or 6-membered hetero ring; B1 represents an atomic group which is combined with Z2 and a carbon atom to form a 5- or 6-membered ring; C1 represents an atomic group which is combined with Z3 and a nitrogen atom to form a 5- or 6-membered hetero ring; D1 represents an atomic group which is combined with Z4 and a carbon atom to form a 5- or 6-membered ring; n represents 1 or 2; L represents a single bond or a linking group; and G represents a fused ring with 3 or more rings.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: August 20, 2019
    Assignee: UDC Ireland Limited
    Inventors: Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Publication number: 20190196064
    Abstract: Provided is an antireflection film that is formed by laminating an interlayer, a silver-containing metal layer containing silver, and a dielectric layer, in this order, on a substrate, in which the interlayer is a multilayer film having two or more layers, in which a layer of high refractive index having a relatively high refractive index and a layer of low refractive index having a relatively low refractive index are alternately laminated, and the dielectric layer has a surface to be exposed to air and is a multilayer film having two or more layers including an oxide layer and a fluorocarbon layer which is a self-assembled film that is formed by a silane coupling reaction to the oxide layer in this order.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Seigo NAKAMURA, Kenichi UMEDA, Yuichiro ITAI, Shinichiro SONODA
  • Publication number: 20190170908
    Abstract: An antireflection film is formed by laminating an interlayer, a silver-containing metal layer containing silver, and a dielectric layer in this order from the substrate, an anchor region including an oxide of an anchor metal is provided between the silver-containing metal layer and the interlayer, a cap region including an oxide of the anchor metal included in the anchor region is provided between the silver-containing metal layer and the dielectric layer, a crystal grain size obtained by X-ray diffraction measurement in the silver-containing metal layer is less than 6.8 nm, and the anchor metal has a surface energy less than a surface energy of silver and greater than a surface energy of a layer of the interlayer closest to the silver-containing metal layer.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Kenichi UMEDA, Seigo NAKAMURA, Yuichiro ITAI, Hideki YASUDA
  • Publication number: 20180366590
    Abstract: Provided is a method of manufacturing a film, including: a manufacturing step of forming a film by performing movement, in a state in which a blade surface of a coating blade disposed to be spaced so as to face a substrate surface of a substrate is in contact with a solution for forming a film which is provided between the blade surface and the substrate surface, in a first direction in a plane parallel to the substrate surface, in which the solution is stored in a liquid reservoir between the blade surface and the substrate surface, and at least a portion of an outer peripheral end portion of the coating blade which is in contact with the solution is tilted with respect to the first direction in a plane parallel to the substrate surface. Accordingly, a method of manufacturing a film for forming a high quality film with high productivity is provided.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Seigo NAKAMURA, Yoshiki MAEHARA, Yuichiro ITAI, Yoshihisa USAMI
  • Publication number: 20180331289
    Abstract: A method of manufacturing an organic semiconductor film, including a step of moving a coating blade surface positioned to face a substrate surface in a first direction parallel to the substrate surface, while in contact with an organic semiconductor solution supplied to a portion between the blade surface and the substrate surface to form the organic semiconductor film in the first direction. The coating blade is disposed to have first and second gaps having different separation gap sizes with the substrate surface in a region where the blade surface and the organic semiconductor solution are in contact. The first gap is positioned on an upstream side of the first direction and the second gap, which is smaller than the first gap, is provided on a downstream side. A second gap size is a minimum distance between the substrate surface and the blade surface and is 40 ?m or less.
    Type: Application
    Filed: July 21, 2018
    Publication date: November 15, 2018
    Applicants: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Seigo NAKAMURA, Yoshiki MAEHARA, Yuichiro ITAI, Yoshihisa USAMI, Junichi TAKEYA
  • Publication number: 20180326447
    Abstract: A device for manufacturing an organic semiconductor film, including a coating member disposed to face a substrate surface while spaced therefrom for forming the film, and forming a liquid reservoir of an organic semiconductor solution between the coating member and the substrate; a supply portion that supplies the solution; and a cover portion that covers at least a crystal growth portion of the solution. The cover portion includes a guide that guides a deposit formed of an evaporated solvent of the solution to a film-unformed region of the organic semiconductor film. While the solution is supplied between the coating member and the substrate surface by the supply portion, the coating member is moved in a first direction parallel to the substrate surface in a state of being in contact with the solution, to form the film with the crystal growth portion as a starting point.
    Type: Application
    Filed: July 21, 2018
    Publication date: November 15, 2018
    Applicants: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Seigo NAKAMURA, Yoshiki MAEHARA, Yuichiro ITAI, Yoshihisa USAMI, Junichi TAKEYA
  • Publication number: 20180145264
    Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: (R1, R2, and R19 each independently represent a hydrogen atom, a phenyl group, a monovalent oligoaryl group having the number of rings of from 2 to 10, or a monovalent fused polycyclic aromatic hydrocarbon group having the number of rings of from 2 to 6, provided that at least one of R1, R2, and R19 represents a monovalent oligoaryl group having the number of rings of from 2 to 10 or a monovalent fused polycyclic aromatic hydrocarbon group having the number of rings of from 2 to 6, and that the phenyl group, the monovalent oligoaryl group having the number of rings of from 2 to 10, and the monovalent fused polycyclic aromatic hydrocarbon group having the number of rings
    Type: Application
    Filed: January 18, 2018
    Publication date: May 24, 2018
    Inventors: Saki Takada, Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Patent number: 9887371
    Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: wherein: R1, R2, and R19; R11 to R18; A1 to A4 are as defined in the specification.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: February 6, 2018
    Assignee: UDC Ireland Limited
    Inventors: Saki Takada, Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Publication number: 20170104177
    Abstract: The present invention provides an organic electronic device sealing member including a gas barrier film including an inorganic layer and an organic layer and an adhesive layer, in which the adhesive layer includes a polymerizable compound and an organic metal compound, an average secondary particle diameter of the organic metal compound is 100 nm or less, and the organic metal compound has a structure represented by Formula I: -[M(OR)—O]n-. In Formula I, M represents a trivalent metal atom, R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkylcarbonyl group, n represents an integer of 2 to 6, two or more R's may be the same as or different from each other, and a first [M(OR)—O] and an n-th [M(OR)—O] are bonded to each other. The organic electronic device sealing member of the present invention is capable of drying an organic electronic element to a higher degree and has low haze.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Yuichiro ITAI
  • Publication number: 20160260910
    Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: (R1, R2, and R19 each independently represent a hydrogen atom, a phenyl group, a monovalent oligoaryl group having the number of rings of from 2 to 10, or a monovalent fused polycyclic aromatic hydrocarbon group having the number of rings of from 2 to 6, provided that at least one of R1, R2, and R19 represents a monovalent oligoaryl group having the number of rings of from 2 to 10 or a monovalent fused polycyclic aromatic hydrocarbon group having the number of rings of from 2 to 6, and that the phenyl group, the monovalent oligoaryl group having the number of rings of from 2 to 10, and the monovalent fused polycyclic aromatic hydrocarbon group having the number of rings
    Type: Application
    Filed: March 24, 2016
    Publication date: September 8, 2016
    Inventors: Saki Takada, Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Patent number: 9373818
    Abstract: It is an object of the present invention to provide an organic electroluminescent element with which no light extraction layer needs to be produced separately, which has a transparent electrode that is advantageous in terms of cost and can be formed by a simple film formation process, and which is excellent from the standpoint of light extraction efficiency. The present invention provides an organic electroluminescent element in which a substrate, a first electrode adjacent to this substrate, an organic layer including at least one organic light-emitting layer, and a second electrode adjacent to this organic layer are formed in this order, with this organic electroluminescent element being such that at least one of the aforementioned electrodes is a transparent electrode which is transparent, which contains at least one type of light scattering particles that are transparent and that have a primary particle size of at least 0.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: June 21, 2016
    Assignee: UDC Ireland Limited
    Inventors: Manabu Tobise, Yuichiro Itai, Kana Morohashi, Shin'ichiro Sonoda, Jingbo Li
  • Patent number: 9306176
    Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: wherein: R1, R2, and R19; R11 to R18; and A1 to A4 are as defined in the specification.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: April 5, 2016
    Assignee: UDC Ireland Limited
    Inventors: Saki Takada, Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Patent number: 9000421
    Abstract: An organic electroluminescent element comprising: a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes. At least one of the organic layer contains a compound of general formula (1): A-(B)n-D, wherein A, D, and B represent groups of the following general formulas (2), (3), and (4) respectively; n represents 0 or 1; and when n is 0, A and D are not symmetrical about a point to each other, including the binding sites: wherein XA1 to XA11, XD1 to XD11, and XB1 to XB11 are as defined in the specification.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: April 7, 2015
    Assignee: UDC Ireland Limited
    Inventors: Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Publication number: 20140319507
    Abstract: This application relates, in part, to an organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one layer of the organic layer(s) contains a compound represented by the following formula (1). The organic electroluminescent element has low driving voltage and excellent durability. wherein X1 to X11 represent CR0 or N, and R0 represents a hydrogen atom or a substituent. Adjacent two of X1 to X11 each independently represent at least CR0, R0s of the adjacent two CR0s are bonded to each other to form a ring, and only one R0 of the adjacent two CR0s represents an aryl group or a heteroaryl group.
    Type: Application
    Filed: November 21, 2012
    Publication date: October 30, 2014
    Applicant: UDC Ireland Limited
    Inventors: Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Publication number: 20140306206
    Abstract: An organic electroluminescent element containing a light emitting material represented by the following general formula (1) and a host material represented by the general formula (H-1) in a light emitting layer. The organic electroluminescent element has low driving voltage, high luminous efficiency, and excellent durability. L represents O, NRC0, or CRC1RC2; RC0 to RC2 each represents a hydrogen atom or a substituent; RC3 to RC6 each represents a substituent; nC3 and nC6 each represents an integer of 0 to 3; nC4 and nC5 each represents an integer of 0 to 4; RH111 to RH118 each represents a hydrogen atom or a substituent; X represents any one of O, S, NRH119, CRH120RH121, and SiRH122RH123, and RH119 to RH123 each represents a substituent; the ring A represents a benzene ring; and the ring B represents a 5- or 6-membered ring.
    Type: Application
    Filed: November 21, 2012
    Publication date: October 16, 2014
    Applicant: UDC Ireland Limited
    Inventors: Kousuke Watanabe, Hiroaki Tsuyama, Yuichiro Itai
  • Publication number: 20140306205
    Abstract: An organic electroluminescent element having high durability can be provided by using a compound represented by the following general formula (1), wherein: Z1 to Z4 each represent a carbon atom or a nitrogen atom; A1 represents an atomic group which is combined with Z1 and a nitrogen atom to form a 5- or 6-membered hetero ring; B1 represents an atomic group which is combined with Z2 and a carbon atom to form a 5- or 6-membered ring; C1 represents an atomic group which is combined with Z3 and a nitrogen atom to form a 5- or 6-membered hetero ring; D1 represents an atomic group which is combined with Z4 and a carbon atom to form a 5- or 6-membered ring; n represents 1 or 2; L represents a single bond or a linking group; and G represents a fused ring with 3 or more rings.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 16, 2014
    Applicant: UDC IRELAND LIMITED
    Inventors: Yosuke Yamamoto, Kousuke Watanabe, Yuichiro Itai
  • Publication number: 20140034914
    Abstract: An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: wherein: R1, R2, and R19; R11 to R18; and A1 to A4 are as defined in the specification.
    Type: Application
    Filed: January 23, 2013
    Publication date: February 6, 2014
    Applicant: UDC Ireland Limited
    Inventors: Saki TAKADA, Yosuke YAMAMOTO, Kousuke WATANABE, Yuichiro ITAI