Patents by Inventor Kiyoshi Minoura

Kiyoshi Minoura 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: 20170059935
    Abstract: The present invention provides a mirror display that can suppress warp of a half mirror plate with a reflective polarizer under heat to prevent distortion of a reflected image in a mirror mode. The mirror display of the present invention includes a half mirror plate that includes a first reflective polarizer and a first base material, a display device, and a warp-suppressing member that suppresses shrinking of the first reflective polarizer under heat. The first reflective polarizer and the first base material are integrated, and the display device is disposed on the back surface side of the half mirror plate.
    Type: Application
    Filed: April 21, 2015
    Publication date: March 2, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki HAKOI, Masahiro HASEGAWA, Akira SAKAI, Kiyoshi MINOURA
  • Patent number: 9573300
    Abstract: A method for manufacturing a sheet having a fine shape transferred thereon, in which a sheet base made of a thermoplastic resin is placed between an imprint mold and an intermediate base and the sheet base is then pressed by a pair of pressing plates to imprint the fine shape of surface irregularity of the imprint mold to the sheet-like base. The sheet base is pressed such that, when pressing force of the pressing plates is maximum, an imprinting pressure difference is present in an imprinting surface of the imprint mold, a maximum imprinting pressure section is present in the imprinting surface, and a portion where the imprinting pressure is minimum is not present in the imprinting surface. The method achieves uniform and highly accurate shape transfer without trapping of air.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 21, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yuma Hirai, Kiyoshi Minoura, Fumiyasu Nomura
  • Publication number: 20170031206
    Abstract: A display device in which ambient light reflections, for example, from IPS or FFS type displays are reduced by a circular polariser (e.g., linear polariser combined with external quarter waveplate) to make the light circular polarized, as it traverses the multiple reflective layers between the polariser and LC layer, and then an internal quarter waveplate converts the light back to linear polarisation before it enters the LC, so the display can operate as normal, while the circular polariser absorbs unwanted reflections of ambient light from within the display.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 2, 2017
    Inventors: Nathan James SMITH, Hywel HOPKIN, Kiyoshi MINOURA, Akira SAKAI, Benjamin John BROUGHTON
  • Publication number: 20170028591
    Abstract: A manufacturing method of a mold includes the steps of: providing an aluminum base in the shape of a hollow cylinder which is made of a Al—Mg—Si based aluminum alloy, the aluminum base being mechanically mirror-finished; performing a frosting treatment on a surface of the aluminum base with an aqueous solution which contains a salt of hydrogen fluoride and ammonium; thereafter, forming an inorganic material layer on the surface of the aluminum base and forming an aluminum film on the inorganic material layer, thereby forming a mold base; and alternately repeating anodization and etching on a surface of the aluminum film of the mold base, thereby forming an inverted moth-eye structure which has a plurality of micro recessed portions.
    Type: Application
    Filed: April 9, 2015
    Publication date: February 2, 2017
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro NAKAHARA, Miho YAMADA, Kiyoshi MINOURA
  • Patent number: 9556532
    Abstract: A method is provided for manufacturing a mold that has a porous alumina layer over its surface, which is capable of preventing formation of pits (recesses). A moth-eye mold manufacturing method of an embodiment of the present invention is a method for manufacturing a mold which has a porous alumina layer over its surface, including the steps of: providing a mold base which includes an aluminum base and an aluminum film deposited on a surface of the aluminum base, the aluminum film having a purity of not less than 99.99 mass %; anodizing a surface of the aluminum film to form a porous alumina layer which has a plurality of minute recessed portions; and bringing the porous alumina layer into contact with an etching solution to enlarge the plurality of minute recessed portions of the porous alumina layer.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: January 31, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kiyoshi Minoura, Akinobu Isurugi, Ichirou Ihara, Hidekazu Hayashi, Kenichiro Nakamatsu
  • Patent number: 9512535
    Abstract: A method for manufacturing a moth-eye mold of an embodiment of the present invention employs a mold base including a metal base, an organic insulating layer provided on the metal base, and an aluminum alloy layer provided on the organic insulating layer, the aluminum alloy layer containing aluminum and a non-aluminum metal element M, an absolute value of a difference between a standard electrode potential of the metal element M and a standard electrode potential of aluminum being not more than 0.64 V, and a content of the metal element M in the aluminum alloy layer not exceeding 10 mass %.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: December 6, 2016
    Assignees: SHARP KABUSHIKI KAISHA, GEOMATEC CO., LTD.
    Inventors: Akinobu Isurugi, Kiyoshi Minoura, Hiroyuki Sugawara
  • Patent number: 9469056
    Abstract: A mold of at least one embodiment of the present invention includes: a base; a conductive layer provided on the base; and an anodized film provided on the conductive layer, the anodized film having an inverted motheye structure in its surface, the inverted motheye structure having a plurality of recessed portions whose two-dimensional size viewed in a direction normal to the surface is not less than 10 nm and less than 500 nm, wherein the base, the conductive layer, and the anodized film are capable of transmitting ultraviolet light.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 18, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akinobu Isurugi, Kiyoshi Minoura
  • Patent number: 9445494
    Abstract: A display panel (100) of an embodiment of the present invention includes a wiring board (100a), a counter substrate (100b) which is provided on a viewer side of the wiring board (100a), and a display medium layer (32) which is provided between the wiring board (100a) and the counter substrate (100b), wherein the wiring board (100a) includes a substrate (11) and a plurality of metal wires (GB, SB, CSB, etc.) provided on the counter substrate (100b) side of the substrate (11), and at least part of the plurality of metal wires has a moth-eye structure or inverted moth-eye structure (12M) in its surface.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: September 13, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Chiaki Minari, Kiyoshi Minoura, Tokio Taguchi, Takao Imaoku
  • Patent number: 9429685
    Abstract: The laminate of an embodiment is a laminate including an antireflection film and a protection film bonded onto the antireflection film, wherein the surface of the antireflection film includes a plurality of protrusions; the protection film includes a supporting film and an adhesive layer; the adhesive layer includes an adhesive agent, a copolymer, and a carboxyl group-containing monomer; the weight average molecular weight of the copolymer is 1000000 or more and 2000000 or less; the copolymer includes the (meth)acrylic acid alkyl ester with the alkyl group having 4 or less carbon atoms in the largest weight proportion among the monomer components; the acid number of the copolymer is 16 mg KOH/g or more and 120 mg KOH/g or less; and the mixing amount of the epoxy cross-linking agent in relation to 100 parts by weight of the copolymer is 1.5 parts by weight or more.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: August 30, 2016
    Assignees: Sharp Kabushiki Kaisha, Soken Chemical & Engineering Co., Ltd.
    Inventors: Kiyoshi Minoura, Takao Imaoku, Tokio Taguchi, Seiichi Shimizu, Ryuta Ooka
  • Publication number: 20160231637
    Abstract: An infrared dimming apparatus of the present invention includes an automatic control circuit that controls switching in a dimming cell between an infrared reflective state and an infrared transmissive state in accordance with a predetermined time schedule.
    Type: Application
    Filed: August 8, 2014
    Publication date: August 11, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Eiji SATOH, Kiyoshi MINOURA, Tomoko TERANISHI, Takuma TOMOTOSHI
  • Patent number: 9411158
    Abstract: The present invention provides a moth-eye film that is not likely to cause condensation on the surface. A moth-eye film including: a resin composition that, when formed into a flat film, has a contact angle with water of larger than 5° but smaller than 31.3°, the contact angle measured between a surface of the flat film and a droplet of water dropped onto the surface of the flat film, after 100 msec from contact of the droplet and the surface.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: August 9, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kiyoshi Minoura, Akinobu Isurugi, Tomoko Teranishi, Eiji Satoh
  • Patent number: 9403293
    Abstract: An anodized layer formation method of an embodiment of the present invention includes the steps of: (a) providing an aluminum base which has a surface that is made of aluminum; (b) anodizing the surface to form a barrier-type alumina layer; and (c) after step (b), further anodizing the surface to form a porous alumina layer which has a plurality of minute recessed portions. According to an embodiment of the present invention, a method is provided that enables formation of a porous alumina layer which has an interpore distance of a desired magnitude with the use of an aluminum base which has a surface that is made of aluminum, irrespective of the surface form.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: August 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akinobu Isurugi, Kiyoshi Minoura, Takao Imaoku
  • Patent number: 9405043
    Abstract: A mold manufacturing method of an embodiment of the present invention includes the steps of: (a) providing a mold base; (b) partially anodizing the aluminum layer to form a porous alumina layer, the porous alumina layer having a porous layer which defines a plurality of minute recessed portions and a barrier layer which is provided at a bottom of each of the plurality of minute recessed portions; and (c) after step (b), performing etching, thereby enlarging the plurality of minute recessed portions of the porous alumina layer, wherein in step (c) the etching is performed such that an average depth of the plurality of minute recessed portions increases but does not exceed a 1/7 of an average thickness of the barrier layer before the etching.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: August 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akinobu Isurugi, Kiyoshi Minoura, Hidekazu Hayashi, Kenichiro Nakamatsu
  • Patent number: 9366902
    Abstract: A display device capable of emitting sufficient fluorescence is provided without an increase in the thickness of the liquid crystal layer. The device includes: a fluorescent emission layer (23) having fluorescent pigment molecules that absorb light to emit fluorescence; and a liquid crystal layer (4) capable of switching between a transparent state and a scattering state. The fluorescent pigment molecules are dichroic fluorescent pigment molecules (23a) with different emission intensities depending on the direction of emission. The dichroic fluorescent pigment molecules (23a) in the fluorescent emission layer (23) are oriented so as to have transition dipole moments with the same direction.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: June 14, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Kazuhiro Deguchi, Eiji Satoh, Sayuri Fujiwara
  • Patent number: 9366785
    Abstract: A moth-eye mold fabrication method includes: (a) providing an aluminum film deposited on a base, the aluminum film having a thickness of not less than 0.5 ?m and not more than 5 ?m, a surface of the aluminum film having a plurality of crystal grains whose average crystal grain diameter is not less than 200 nm and not more than 5 ?m; (b) after step (a), anodizing the surface of the aluminum film to form a porous alumina layer which has a plurality of minute recessed portions; and (c) after step (b), bringing the porous alumina layer into contact with an etching solution, thereby enlarging the plurality of minute recessed portions of the porous alumina layer. A method of readily fabricating a mold is produced that is for manufacture of an antireflection film in which a moth-eye structure is superposed over an antiglare structure.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: June 14, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kiyoshi Minoura, Akinobu Isurugi
  • Publication number: 20160121005
    Abstract: A sterilization filter includes a synthetic polymer film, the synthetic polymer film having a surface which has a plurality of first raised portions, a two-dimensional size of the plurality of first raised portions being more than 20 nm and less than 500 ?m when viewed in a normal direction. The synthetic polymer film is arranged in a predetermined shape. In the arrangement of the predetermined shape, an inclination of a normal to the surface varies depending on a position over the surface, and an inclination of a normal to a surface opposite to the surface varies depending on a position over the opposite surface. At least part of the surface is capable of coming into contact with a gas or liquid.
    Type: Application
    Filed: March 12, 2015
    Publication date: May 5, 2016
    Inventors: Takahiro NAKAHARA, Miho YAMADA, Kiyoshi MINOURA, Seiji TAKAMI
  • Publication number: 20160113274
    Abstract: A synthetic polymer film includes a surface which has a plurality of first raised portions, wherein a two-dimensional size of the plurality of first raised portions is in a range of more than 20 nm and less than 500 nm when viewed in a normal direction of the synthetic polymer film; and the surface has a microbicidal effect.
    Type: Application
    Filed: March 5, 2015
    Publication date: April 28, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Miho YAMADA, Kiyoshi MINOURA, Takahiro NAKAHARA, Seiji TAKAMI
  • Patent number: 9315916
    Abstract: An electrode structure of the present invention includes: an aluminum electrode which is to be in contact with a surface of an aluminum base; a fixing member for fixing the aluminum electrode on the surface of the aluminum base; an elastic member provided between the fixing member and the aluminum base; a lead wire which is electrically connected to the aluminum electrode at least under a certain condition; and a cover member which is tightly closed with the lead wire penetrating through an opening.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: April 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Hayashi, Kiyoshi Minoura, Akinobu Isurugi
  • Patent number: 9250475
    Abstract: A liquid crystal display device (100A) of the present invention includes a liquid crystal layer (1) and first and second alignment films (12, 13) which are provided with an alignment treatment. The liquid crystal layer (1) includes, in each of the pixels, a plurality of first small sections (14a) separated by a wall (10) and the first alignment film (12) and a plurality of second small sections (14b) separated by the wall (10) and the second alignment film (13). Each of the plurality of first small sections (14a) has a first liquid crystal region (11a). Each of the plurality of second small sections (14b) has a second liquid crystal region (11b). Each of the first and second liquid crystal regions (11a, 11b) includes a nematic liquid crystal material and a dichromatic dye (21a, 21b). The dichromatic dye (21a) of the first liquid crystal region (11a) is aligned along the alignment direction of the first alignment film (12).
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: February 2, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh, Sayuri Fujiwara
  • Publication number: 20150361378
    Abstract: A cleaning solution is used, in a transparent antireflective structure that has, on one surface thereof, a plurality of convexities formed at a period equal to or shorter than wavelength in a visible light range, and that prevents, at the one surface, reflection of light entering the one surface, to clean a concavity defining a region between adjacent two of the plural convexities, the cleaning solution having a pH of 10.00 or more.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 17, 2015
    Inventors: Kyohko MATSUURA, Yuhsuke TSUDA, Hidetsugu MATSUKIYO, Yuka UTSUMI, Akiyoshi FUJII, Takahiro NAKAHARA, Kiyoshi MINOURA, Miho YAMADA