Patents by Inventor Tokio Taguchi

Tokio Taguchi 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: 10643815
    Abstract: Provided are an electron emission device having a novel structure and being capable of improving characteristics and/or extending a lifetime of a related-art electron emission device, and a method of manufacturing the electron emission device.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 5, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kenichiro Nakamatsu, Hidekazu Hayashi, Tokio Taguchi, Tadashi Iwamatsu, Kohji Shinkawa, Mai Takasaki, Toshihiro Kaneko, Atsushi Niinoh
  • Patent number: 10625489
    Abstract: The present invention provides an optical member excellent in antifouling properties, rubbing resistance, and antifog properties. The optical member of the present invention includes, on a surface thereof, an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the projections each including a hydrophilic portion at its tip. Preferably, each of the projections is formed from a hydrophobic resin and has its tip covered with a hydrophilic material, the hydrophilic material contains silicon dioxide, and the hydrophilic material has a thickness of 30 nm or smaller.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: April 21, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Hayashi, Tokio Taguchi, Nobuaki Yamada
  • Publication number: 20200075285
    Abstract: An electron emitting device (100) includes a first electrode (12), a second electrode (52), and a semi-conductive layer (30) provided between the first electrode (12) and the second electrode (52). The semi-conductive layer (30) includes a porous alumina layer (32) having a plurality of pores (34) and silver (42) supported in the plurality of pores (34) of the porous alumina layer (32).
    Type: Application
    Filed: May 15, 2018
    Publication date: March 5, 2020
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Kenichiro NAKAMATSU, Tadashi IWAMATSU, Kohji SHINKAWA, Mai TAKASAKI, Toshihiro KANEKO, Atsushi NIINOH
  • Publication number: 20200002488
    Abstract: A decorative film includes: a substrate; and a polymer layer including on a surface thereof an uneven structure provided with projections at a pitch not longer than a wavelength of visible light. The substrate contains a polycarbonate at least in its surface close to the polymer layer. The polymer layer is a cured product of a polymerizable composition. The polymerizable composition contains a release agent, a polyfunctional acrylate containing one or both of an ethylene oxide group and a propylene oxide group, and 2-(2-vinyloxyethoxy)ethyl acrylate. The polymerizable composition contains, in terms of active components, given proportions of the release agent and the 2-(2-vinyloxyethoxy)ethyl acrylate. The polymerizable composition contains, in terms of active components, a given total amount of the ethylene oxide group and the propylene oxide group in the polyfunctional acrylate and the 2-(2-vinyloxyethoxy)ethyl acrylate.
    Type: Application
    Filed: October 13, 2017
    Publication date: January 2, 2020
    Inventors: Yasuhiro SHIBAI, Ken ATSUMO, Tokio TAGUCHI
  • Patent number: 10493707
    Abstract: The present invention provides a method for producing an optical film excellent in anti-fouling properties and scratch resistance as well as anti-reflection properties. The method includes the steps of: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: December 3, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Hayashi, Tokio Taguchi, Atsushi Niinoh, Kenichiro Nakamatsu
  • Publication number: 20190351632
    Abstract: The present invention provides a method for producing an optical film excellent in anti-fouling properties and scratch resistance as well as anti-reflection properties. The method includes the steps of: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 21, 2019
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Atsushi NIINOH, Kenichiro NAKAMATSU
  • Publication number: 20190300666
    Abstract: The present invention provides a method for producing an antifouling film capable of long-term continuous production of an antifouling film having excellent antifouling properties. The method for producing an antifouling film of the present invention includes Process (1) of applying a resin to a surface of a substrate; Process (2) of applying a second release agent to a surface of a die coated with a first release agent; Process (3) of pushing the substrate to the surface of the die coated with the second release agent with the resin in between to form an uneven structure on a surface of the resin; and Process (4) of curing the resin including the uneven structure on the surface thereof to form a polymer layer. The resin contains an antifouling agent that contains a predetermined compound. The first release agent contains a predetermined compound. The second release agent contains a predetermined compound.
    Type: Application
    Filed: July 3, 2017
    Publication date: October 3, 2019
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Kenichiro NAKAMATSU, Yasuhiro SHIBAI, Ken ATSUMO, Tsuneo YAMASHITA, Eiji SAKAMOTO, Saya NII, Takayuki ARAKI
  • Publication number: 20190304732
    Abstract: A method of producing an electron emitting device includes: step A of providing an aluminum substrate or providing an aluminum layer supported by a substrate; step B of anodizing a surface of the aluminum substrate or a surface of the aluminum layer to form a porous alumina layer having a plurality of pores; step C of applying Ag nanoparticles in the plurality of pores to allow the Ag nanoparticles to be supported in the plurality of pores; step D of, after step C, applying a dielectric layer-forming solution onto substantially the entire surface of the aluminum substrate or the aluminum layer, the dielectric layer-forming solution containing, in an amount of not less than 7 mass % but less than 20 mass %, a polymerization product having siloxane bonds; step E of, after step D, at least reducing a solvent contained in the dielectric layer-forming solution to form the dielectric layer; and step F of forming an electrode on the dielectric layer.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Kenichiro NAKAMATSU, Tokio TAGUCHI, Kohji SHINKAWA, Mai TAKASAKI, Tadashi IWAMATSU
  • Patent number: 10414108
    Abstract: A method for producing an optical film includes: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: September 17, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Hayashi, Tokio Taguchi, Nobuaki Yamada, Yasuhiro Shibai, Atsushi Niinoh, Kenichiro Nakamatsu
  • Publication number: 20190276577
    Abstract: A synthetic polymer film has a surface which has a plurality of raised portions, wherein when viewed in a normal direction of the synthetic polymer film, a two-dimensional size of the plurality of raised portions is in the range of more than 20 nm and less than 500 nm, the synthetic polymer film is made of a curable resin which contains a first polymerizable fluoric compound, the first polymerizable fluoric compound containing a fluorine element, the first polymerizable fluoric compound has a plurality of polymerizable functional groups and has a molecular weight of not less than 1000 and not more than 5000, and at the lapse of 5 minutes since placing a 200 ?L drop of water on the surface of the synthetic polymer film, a pH of an aqueous solution is not less than 6.5 and not more than 7.5.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Inventors: Yasuhiro SHIBAI, Ken ATSUMO, Tokio TAGUCHI, Miho YAMADA
  • Publication number: 20190255759
    Abstract: A synthetic polymer film whose surface has a plurality of raised or recessed portions, wherein a two-dimensional size of the plurality of raised or recessed portions is in a range of not less than 0.5 ?m and not more than 3 ?m when viewed in a normal direction of the synthetic polymer film, the synthetic polymer film has a crosslink structure and contains an organic carboxylic acid, at the lapse of 5 minutes since placing a 200 ?L drop of water on the surface of the synthetic polymer film, a pH of an aqueous solution is less than 4, and an area equivalent circle diameter of the aqueous solution is not less than 20 mm, and at the lapse of 60 seconds since placing a drop of water on the surface of the synthetic polymer film, a static contact angle of the water drop with respect to the surface is less than 3°.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 22, 2019
    Inventors: MIHO YAMADA, YASUHIRO SHIBAI, KIYOSHI MINOURA, TOKIO TAGUCHI
  • Publication number: 20190233656
    Abstract: The present invention provides a method for producing an antifouling film having excellent antifouling properties and rubbing resistance. The method for producing an antifouling film of the present invention includes Process (1) of applying a resin to a surface of a substrate; Process (2) of pushing the substrate to a die with the resin in between to form an uneven structure on a surface of the resin; and Process (3) of curing the resin including the uneven structure on the surface thereof to form a polymer layer. The resin contains an antifouling agent that contains a compound containing a perfluoro(poly)ether group. The die includes a surface having undergone release treatment using a release agent containing a compound that contains a perfluoro(poly)ether group, a hydrolyzable group, and a Si atom.
    Type: Application
    Filed: July 3, 2017
    Publication date: August 1, 2019
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Kenichiro NAKAMATSU, Yasuhiro SHIBAI, Ken ATSUMO, Tsuneo YAMASHITA, Saya NII, Eiji SAKAMOTO, Kakeru HANABUSA, Hisashi MITSUHASHI, Takayuki ARAKI
  • Publication number: 20190118504
    Abstract: The method for producing an optical member of the present invention includes: Process (1) of applying a first resin to a substrate; Process (2) of applying a second resin to at least one of the first resin and a die; Process (3) of pushing the substrate to the die with the first resin and the second resin in between to form a resin layer including on a surface thereof an uneven structure; and Process (4) of curing the resin layer to provide a polymer layer. The die includes a surface after release treatment with a fluorine release agent. The first resin contains a resin component, and the resin component contains predetermined amounts of a (meth)acrylamide compound and a urethane prepolymer containing six or more functional groups. The second resin contains predetermined amounts of a reactive group-containing monomer, a fluorosurfactant, and a fluorine-containing monomer.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 25, 2019
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Kenichiro NAKAMATSU, Hisashi MARUYAMA, Nobuaki NAKAO, Suguru AOKI
  • Publication number: 20190080870
    Abstract: Provided are an electron emission device having a novel structure and being capable of improving characteristics and/or extending a lifetime of a related-art electron emission device, and a method of manufacturing the electron emission device.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 14, 2019
    Inventors: KENICHIRO NAKAMATSU, HIDEKAZU HAYASHI, TOKIO TAGUCHI, TADASHI IWAMATSU, KOHJI SHINKAWA, MAI TAKASAKI, TOSHIHIRO KANEKO, ATSUSHI NIINOH
  • Publication number: 20190016084
    Abstract: The present invention provides an optical member excellent in antifouling properties, rubbing resistance, and antifog properties. The optical member of the present invention includes, on a surface thereof, an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the projections each including a hydrophilic portion at its tip. Preferably, each of the projections is formed from a hydrophobic resin and has its tip covered with a hydrophilic material, the hydrophilic material contains silicon dioxide, and the hydrophilic material has a thickness of 30 nm or smaller.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 17, 2019
    Inventors: HIDEKAZU HAYASHI, TOKIO TAGUCHI, NOBUAKI YAMADA
  • Patent number: 9862167
    Abstract: A laminated body includes: an antireflection film; and a protection film bonded onto the antireflection film. The adhesive layer is a layer with a material formed by cross-linking, with a cross-linking agent (B), and a (meth)acrylic acid ester copolymer. The (meth)acrylic acid ester copolymer (A) is a copolymer formed by polymerizing monomer components including, in relation to the total amount of the monomer components set at 100% by mass, 70 to 98% by mass of a (meth)acrylic acid alkyl ester monomer (a) including a noncyclic alkyl group containing 4 to 9 carbon atoms, 1.5 to 25% by mass of a (meth)acrylic acid ester monomer (b) containing an aliphatic ring, and 0.5 to 5% by mass of a (meth)acrylic-based monomer (c) containing a functional group exhibiting reactivity with the cross-linking agent (B). The area proportion of the components each having a molecular weight of 100,000 or less, is less than 3.0%.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: January 9, 2018
    Assignees: SHARP KABUSHIKI KAISHA, LINTEC CORPORATION
    Inventors: Tokio Taguchi, Atsushi Kurokawa, Takayuki Arai, Satoru Shoshi
  • Publication number: 20170320281
    Abstract: The present invention provides a method for producing an optical film excellent in anti-fouling properties and scratch resistance as well as anti-reflection properties. The method includes the steps of: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.
    Type: Application
    Filed: July 14, 2017
    Publication date: November 9, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Atsushi NIINOH, Kenichiro NAKAMATSU
  • Patent number: 9812087
    Abstract: A display device in which an image with a wide color reproduction range and bright red can be displayed is provided. The display device is a display device such as, for example, a liquid crystal display device, a cathode ray tube, an organic electroluminescent display device, a plasma display panel, and a field emission display. The display device includes a display surface including a pixel having red, green, blue, and yellow sub-pixels, wherein the red sub-pixel preferably has the largest aperture area.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 7, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kozo Nakamura, Shun Ueki, Tokio Taguchi, Akiko Itou
  • Patent number: 9784889
    Abstract: An antireflection structure is disclosed which is capable of enhancing designability by adjusting a reflection characteristic of a Moth-eye structure. A display device using the antireflection structure is also disclosed. The antireflection structure according to an embodiment includes a resin base member including, on a surface, an uneven structure in which a height from a bottom part to a top part is equal to or smaller than a visible light wavelength, and a resin layer covering at least a part of the uneven structure, the resin layer covering the bottom part of the uneven structure more thickly than the top part of the uneven structure.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: October 10, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akiyoshi Fujii, Chiaki Minari, Tokio Taguchi, Nobuaki Yamada, Kiyoshi Minoura
  • Publication number: 20170066207
    Abstract: A method for producing an optical film includes: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.
    Type: Application
    Filed: February 10, 2016
    Publication date: March 9, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Nobuaki YAMADA, Yasuhiro SHIBAI, Atsushi NIINOH, Kenichiro NAKAMATSU