Patents by Inventor Yoshio Taniguchi

Yoshio Taniguchi 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: 10712620
    Abstract: A method of manufacturing a liquid crystal device according to the invention includes forming an inorganic alignment film on a side of an element substrate that faces the liquid crystal layer and on a side of a counter substrate that faces the liquid crystal layer, forming an hydrophobic film that covers the inorganic alignment film, and removing at least a portion of the hydrophobic film that is formed outside a pixel region of the element substrate and the counter substrate when viewed in plan view.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hiroyuki Abe, Yoshio Taniguchi
  • Patent number: 10520771
    Abstract: A liquid crystal device includes an elemental substrate provided with a silicon oxide alignment layer on the front surface side thereof. Silanol groups of the alignment layer are bound to an organic silane polymer layer by silane coupling treatment. The silane coupling treatment also forms an organic silane polymer layer on the rear surface side of the elemental substrate. This organic silane polymer layer is a layer having a higher hydrophilicity than the organic silane polymer layer. A light-transmitting plate bonded to the rear surface side of elemental substrate with an adhesive layer is thus unlikely to separate.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: December 31, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yoshio Taniguchi
  • Publication number: 20180348581
    Abstract: A method of manufacturing a liquid crystal device according to the invention includes forming an inorganic alignment film on a side of an element substrate that faces the liquid crystal layer and on a side of a counter substrate that faces the liquid crystal layer, forming an hydrophobic film that covers the inorganic alignment film, and removing at least a portion of the hydrophobic film that is formed outside a pixel region of the element substrate and the counter substrate when viewed in plan view.
    Type: Application
    Filed: May 23, 2018
    Publication date: December 6, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiroyuki ABE, Yoshio TANIGUCHI
  • Patent number: 10059725
    Abstract: The invention provides a light emitting layer host compound and an electron-blocking compound that have high excited triplet levels, and can completely confine the triplet excitons of phosphorescent material, for use as the material of a high-efficient organic electroluminescent device. The invention also provides a high-efficient, high-luminance organic electroluminescent device with the use of the compounds. The compound of the general formula (1) below has a triphenylsilyl group and a triarylamine structure, and the organic electroluminescent device includes a pair of electrodes and at least one organic layer interposed between the pair of electrodes, wherein the compound of the general formula (1) having a triphenylsilyl group and a triarylamine structure is used as constituent material of the at least one organic layer.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: August 28, 2018
    Assignees: Hodogaya Chemical Co., Ltd., Shinshu University
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa, Shinichi Matsuki
  • Publication number: 20180157069
    Abstract: A liquid crystal device includes an elemental substrate provided with a silicon oxide alignment layer on the front surface side thereof. Silanol groups of the alignment layer are bound to an organic silane polymer layer by silane coupling treatment. The silane coupling treatment also forms an organic silane polymer layer on the rear surface side of the elemental substrate. This organic silane polymer layer is a layer having a higher hydrophilicity than the organic silane polymer layer. A light-transmitting plate bonded to the rear surface side of elemental substrate with an adhesive layer is thus unlikely to separate.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 7, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yoshio TANIGUCHI
  • Patent number: 9454041
    Abstract: A liquid crystal device includes a liquid crystal layer, and an inorganic oriented film between the liquid crystal layer and an electrode, in which the inorganic oriented film has a first inorganic oriented film that has a first prismatic structure including silicon oxide, and a second inorganic oriented film that is formed so as to cover at least a portion of the first prismatic structure, and includes nitrogen.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: September 27, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Yoshimichi Matsumoto, Yoshio Taniguchi, Norikazu Komatsu
  • Patent number: 9005776
    Abstract: A compound having a benzotriazole ring structure and a formula (1): wherein Ar is a substituted or unsubstituted aromatic hydrocarbon group, aromatic heterocyclic group, or condensed polycyclic aromatic group; A and B are the same as or different from each other and each represent a hydrogen atom or a monovalent group of formula (2), provided that A and B are not simultaneously hydrogen atoms: wherein R1 to R8 are the same as or different and each represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or condensed polycyclic aromatic group; m is an integer of 0, 1 or 2; X represents a carbon atom or a nitrogen atom; when X is a nitrogen atom, the nitrogen atom does not have substituents or bonding groups of R1, R2, R3 and R4; and when m is 2, a plurality of R1, R2, R3, R4 and X each are the
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 14, 2015
    Assignees: Hodogaya Chemical Co., Ltd., Shinshu University
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Yoshio Taniguchi, Musubu Ichikawa, Shunji Mochiduki
  • Publication number: 20150098051
    Abstract: A liquid crystal device includes a liquid crystal layer, and an inorganic oriented film between the liquid crystal layer and an electrode, in which the inorganic oriented film has a first inorganic oriented film that has a first prismatic structure including silicon oxide, and a second inorganic oriented film that is formed so as to cover at least a portion of the first prismatic structure, and includes nitrogen.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 9, 2015
    Inventors: Yoshimichi Matsumoto, Yoshio Taniguchi, Norikazu Komatsu
  • Publication number: 20140048787
    Abstract: An organic compound having excellent electron transport property and hole blocking property as a material for a highly efficient organic EL device, and also provide a highly efficient organic EL device using the compound. This invention relates to a compound having a triazole ring structure to which a substituted pyridyl group is bonded, represented by the following general formula (1), and to an organic electroluminescence device comprising the compound: wherein Ar1 and Ar2, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10, and m are as defined in the specification.
    Type: Application
    Filed: September 26, 2013
    Publication date: February 20, 2014
    Applicants: NATIONAL UNIVERSITY CORPORATION SHINSHU UNIVERSITY, HODOGAYA CHEMICAL CO., LTD.
    Inventors: Tetsuzo MIKI, Norimasa YOKOYAMA, Yoshio TANIGUCHI, Musubu ICHIKAWA
  • Patent number: 8642189
    Abstract: The invention provides an organic compound which shows an excellent electron-injecting/transporting performance, has a hole-blocking ability and shows a high stability as a film, that is, having excellent characteristics as a material for organic electroluminescent device having high efficiency and high durability; and provides an organic EL device comprising the compound and having high efficiency and high durability.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: February 4, 2014
    Assignees: Hodogaya Chemical Co., Ltd., Shinshu University, National University Corporation
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Makoto Nagaoka, Yoshio Taniguchi, Musubu Ichikawa
  • Patent number: 8247087
    Abstract: An object of the invention is to provide an organic compound having excellent characteristics as a material for highly efficient and highly durable organic EL devices, and also to provide a highly efficient and highly durable organic EL device. This invention relates to a compound represented by the general formula (1) having an oxadiazole ring structure bonded with an aromatic heterocycle, and to an organic electroluminescence device containing the compound: wherein Ar represents a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group; A represents a substituted or unsubstituted aromatic heterocyclic group; and n represents an integer of 1 to 3.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: August 21, 2012
    Assignees: Hodogaya Chemical Co., Ltd., Shinshu University
    Inventors: Tetsuzo Miki, Norimasa Yokoyama, Shuichi Hayashi, Shigeru Kusano, Yoshio Taniguchi, Musubu Ichikawa
  • Patent number: 8227096
    Abstract: This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the arylamine compound of formula (1) is used as a constituting material of the at least one organic layer: wherein X represents a single bond, CH or CH2, or N or NH; Ar1 and Ar2 are respectively the same and each represents a substituted or unsubstituted phenylene group; R1, R2, R3, and R4 each independently represents an aryl group, wherein the aryl group may be substituted by a diarylamine group in such a manner as to form a triphenylamine partial structure, and the aryl group at the terminal may be substituted, by repetition, by a diarylamino group in such a manner as to form a triphenylamine partial structure; m represents an integer of 0 to 2; and n represents 0 or 1.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 24, 2012
    Assignees: Hodogaya Chemical Co., Ltd., Shinshu University
    Inventors: Tetsuzo Miki, Norimasa Yokoyama, Yoshio Taniguchi, Musubu Ichikawa
  • Patent number: 8189142
    Abstract: Provided is an electro-optical device including: a pair of substrates; an electro-optical material sandwiched between the pair of substrates; a seal material disposed in a seal region located at the periphery of a region in which the electro-optical material is provided on the pair of substrates so as to bond the pair of substrate to each other, between the pair of substrates; and a coloring layer provided in a concave portion formed in the region in which the electro-optical material is provided on one substrate, wherein a upper surface of a coloring layer facing the electro-optical material is formed nearer to the other substrate than a seal region surface overlapping with the seal material on one substrate.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: May 29, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Yoshio Taniguchi, Hiroaki Mochizuki, Hirotaka Kawata, Hidetoshi Ushiyama
  • Publication number: 20120012831
    Abstract: A compound having a benzotriazole ring structure and a formula (1): wherein Ar is a substituted or unsubstituted aromatic hydrocarbon group, aromatic heterocyclic group, or condensed polycyclic aromatic group; A and B are the same as or different from each other and each represent a hydrogen atom or a monovalent group of formula (2), provided that A and B are not simultaneously hydrogen atoms: wherein R1 to R8 are the same as or different and each represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or condensed polycyclic aromatic group; m is an integer of 0, 1 or 2; X represents a carbon atom or a nitrogen atom; when X is a nitrogen atom, the nitrogen atom does not have substituents or bonding groups of R1, R2, R3 and R4; and when m is 2, a plurality of R1, R2, R3, R4 and X each are the s
    Type: Application
    Filed: March 17, 2010
    Publication date: January 19, 2012
    Applicants: Shinshu University, Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Yoshio Taniguchi, Musubu Ichikawa, Shunji Mochiduki
  • Publication number: 20110272679
    Abstract: A host compound for a light emitting layer, which is excellent in electron transporting capability and hole blocking capability, has a high triplet excitation level and is capable of completely confining triplet excitons of a phosphorescent material, is provided as a material for an organic electroluminescent device having a high efficiency, and an organic electroluminescent device having a high efficiency and a high luminance is provided by using this compound.
    Type: Application
    Filed: January 19, 2010
    Publication date: November 10, 2011
    Applicants: SHINSHU UNIVERSITY, HODOGAYA CHEMICAL CO., LTD.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa, Shinichi Matsuki
  • Patent number: 8045106
    Abstract: A substrate for a liquid crystal device includes: an electrode film provided on a display area on the substrate; an alignment film which covers at least the display area and is subjected to an alignment process by rubbing; and a band-shaped projection provided in a peripheral area outside the display area so as at least to intersect the rubbing direction and extend along the display area, in which the height of the band-shaped projection on the substrate is higher than the height of the surface of the electrode film.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: October 25, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Hirotaka Maeda, Akinori Hashizume, Yoshio Taniguchi
  • Publication number: 20110220881
    Abstract: The invention provides a light emitting layer host compound and an electron-blocking compound that have high excited triplet levels, and can completely confine the triplet excitons of phosphorescent material, for use as the material of a high-efficient organic electroluminescent device. The invention also provides a high-efficient, high-luminance organic electroluminescent device with the use of the compounds. The compound of the general formula (1) below has a triphenylsilyl group and a triarylamine structure, and the organic electroluminescent device includes a pair of electrodes and at least one organic layer interposed between the pair of electrodes, wherein the compound of the general formula (1) having a triphenylsilyl group and a triarylamine structure is used as constituent material of the at least one organic layer.
    Type: Application
    Filed: November 9, 2009
    Publication date: September 15, 2011
    Applicants: HODOGAYA CHEMICAL CO., LTD., SHINSHU UNIVERSITY
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa, Shinichi Matsuki
  • Patent number: 7977671
    Abstract: The present invention relates to a compound having an oxadiazole ring structure having a substituted pyridyl group connected thereto, represented by the following general formula (1). According to the present invention, it becomes possible to provide an organic compound having excellent characteristic of high stability in a thin film state, and the emission efficiency and durability of conventional organic EL devices can be remarkably improved.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 12, 2011
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Tetsuzo Miki, Makoto Nagaoka, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa
  • Patent number: 7967654
    Abstract: An organic electroluminescence element has a layered structure on a surface of a transparent substrate. The layered structure comprises an organic material layer including a light-emitting organic material layer, an opaque electrode layer, an insulating layer, a metal layer and a resin film in order. The organic electroluminescence element is improved in durability because moisture is prevented from permeating into a light-emitting element.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: June 28, 2011
    Assignees: Tokai Rubber Industries, Ltd.
    Inventors: Yoshio Taniguchi, Masato Sugiyama, Shingo Hibino, Tetsuya Takeuchi, Ryo Minoshima
  • Publication number: 20110133171
    Abstract: This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the arylamine compound of formula (1) is used as a constituting material of the at least one organic layer: wherein X represents a single bond, CH or CH2, or N or NH; Ar1 and Ar2 are respectively the same and each represents a substituted or unsubstituted phenylene group; R1, R2, R3, and R4 each independently represents an aryl group, wherein the aryl group may be substituted by a diarylamine group in such a manner as to form a triphenylamine partial structure, and the aryl group at the terminal may be substituted, by repetition, by a diarylamino group in such a manner as to form a triphenylamine partial structure; m represents an integer of 0 to 2; and n represents 0 or 1.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 9, 2011
    Applicants: Hodogaya Chemical Co., Ltd., Shinshu University
    Inventors: Tetsuzo Miki, Norimasa Yokoyama, Yoshio Taniguchi, Musubu Ichikawa