Patents by Inventor Akiko Ogasawara

Akiko Ogasawara 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: 20220413206
    Abstract: An optical member includes a light source, a first substrate to be a light guide that guides emitted light from the light source, a variable layer in contact with a predetermined surface of the first substrate, and a second substrate facing the first substrate via the variable layer. When a refractive index of the first substrate is n1, a refractive index of the variable layer can be changed to n2 or n3 (where n2>n3), and n1, n2, and n3 satisfy a relationship of |n1?n2|<|n1?n3|.
    Type: Application
    Filed: September 17, 2020
    Publication date: December 29, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kenta Watanabe, Akiko Ogasawara, Atsushi Kishi
  • Publication number: 20220413280
    Abstract: An optical component has: a planar liquid layer; and one or more light sources arranged such that light is guided to the planar liquid layer; wherein the liquid layer is configured to guide light.
    Type: Application
    Filed: September 18, 2020
    Publication date: December 29, 2022
    Applicant: Nitto Denko Corporation
    Inventors: Kenta Watanabe, Akiko Ogasawara, Atsushi Kishi
  • Publication number: 20220057761
    Abstract: A smart window control device controls transmittance of a smart window provided as a window of a space where a temperature is controlled by an air conditioning system in accordance with a set temperature. The smart window control device includes a processor, and a memory storing program instructions that cause the processor to obtain a predicted value of external environment information about outside of the space in an interval between a first time and a second time, the second time being when a predetermined time period has elapsed from the first time, calculate transition of the temperature of the space in the interval based on the predicted value of the external environment information in the interval, and control the transmittance of the smart window so that the temperature of the space in the interval transitions based on the calculated transition of the temperature.
    Type: Application
    Filed: February 5, 2020
    Publication date: February 24, 2022
    Applicant: Nitto Denko Corporation
    Inventors: Kenta Watanabe, Akiko Ogasawara, Atsushi Kishi
  • Publication number: 20200144553
    Abstract: Provided is an organic EL display apparatus which is excellent in bending resistance, and in which the occurrence of warping due to a change in its environment is suppressed. The organic EL display apparatus of the present invention includes: an organic EL panel; a first optical laminate arranged on one side of the organic EL panel; and a second optical laminate arranged on another side of the organic EL panel, wherein the first optical laminate has a thickness of 300 ?m or less, wherein the second optical laminate has a thickness of 300 ?m or less, wherein the first optical laminate has an equilibrium moisture content of 2.50 or less, and wherein the second optical laminate has an equilibrium moisture content of 2.5% or less.
    Type: Application
    Filed: September 26, 2017
    Publication date: May 7, 2020
    Applicant: NITTO DENKO CORPORATION
    Inventors: Akiko Ogasawara, Hiroyuki Takemoto, Kentarou Takeda, Koya Osuka
  • Patent number: 9188722
    Abstract: The present invention aims at providing an antistatic pressure-sensitive adhesive optical film exhibiting excellent antistatic effect, optical properties, and water resistance and having excellent adhesion between the antistatic layer and the pressure-sensitive adhesive layer. An antistatic pressure-sensitive adhesive optical film, the optical film having an antistatic layer laminated on at least one side of the optical film, and a pressure-sensitive adhesive layer further laminated on the antistatic layer, wherein the antistatic layer comprises a conductive polymer and a sulfonic acid compound as raw material components, and the pressure-sensitive adhesive layer is formed of an acryl-based pressure-sensitive adhesive containing nitrogen.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: November 17, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Shinichi Inoue, Masayuki Satake, Toshitsugu Hosokawa, Akiko Ogasawara
  • Patent number: 8883251
    Abstract: An antistatic optical film comprising an antistatic layer laminated on at least one side of an optical film, wherein the antistatic layer comprises a water soluble or a water dispersible conductive polymer, has excellent antistatic effect, optical characteristics and appearance.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: November 11, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Satake, Akiko Ogasawara, Fumiaki Shirafuji, Toshitsugu Hosokawa, Shinichi Inoue
  • Patent number: 8703297
    Abstract: The present invention aims at providing an antistatic optical film having excellent antistatic effect and high light transmittance, wherein an antistatic layer laminated on at least one side of the optical film. An antistatic optical film having an antistatic layer laminated on at least one side of the optical film, wherein rubbing treatment is performed on a surface of the optical film on which the antistatic layer is laminated, and a conductive polymer in the antistatic layer is aligned.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: April 22, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Shinichi Inoue, Masayuki Satake, Toshitsugu Hosokawa, Akiko Ogasawara, Akira Ootani
  • Publication number: 20140037843
    Abstract: An adhesive layer included in an adhesive-type optical film forms a portion located on the inside of a edge line of an optical film.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 6, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Satake, Masaaki Kawaguchi, Noboru Itano, Akiko Ogasawara, Osamu Hayashi
  • Patent number: 8609243
    Abstract: A pressure-sensitive adhesive optical film includes: an optical film; and a pressure-sensitive adhesive layer laminated on at least one side of the optical film with an anchor layer interposed therebetween, wherein the anchor layer has a thickness of 5 to 300 nm, the pressure-sensitive adhesive layer has a thickness of 5 to 50 ?m, at least one of the anchor layer and the pressure-sensitive adhesive layer is made from a ammonia-containing water-dispersible material, the layer made from the ammonia-containing water-dispersible material contains ammonia in an amount of 10 ng or more per 1 cm2 of the pressure-sensitive adhesive optical film, wherein the amount is a measurement derived from the layer, and the pressure-sensitive adhesive optical film contains ammonia in a total amount of 2000 ng or less per 1 cm2 of the pressure-sensitive adhesive optical film. The pressure-sensitive adhesive optical film has good appearance and high durability.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: December 17, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Akiko Ogasawara, Masayuki Satake
  • Patent number: 8580367
    Abstract: An adhesive layer included in an adhesive-type optical film forms a portion located on the inside of a edge line of an optical film.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: November 12, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Satake, Masaaki Kawaguchi, Noboru Itano, Akiko Ogasawara, Osamu Hayashi
  • Patent number: 8372492
    Abstract: A pressure-sensitive adhesive optical film of the present invention comprises: an optical film comprising a transparent base film and a discotic liquid crystal layer on one side of the transparent base film; and a pressure-sensitive adhesive layer that is provided on the discotic liquid crystal layer, wherein the pressure-sensitive adhesive layer is made from a pressure-sensitive adhesive containing an acrylic polymer comprising an alkyl(meth)acrylate (a1) and a ring structure-containing (meth)acrylate (a2) as monomer units and having a weight average molecular weight of 1,000,000 to 3,000,000, and a crosslinking agent. The pressure-sensitive adhesive optical film has durability and can be prevented from causing display unevenness in a peripheral portion of a display screen.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: February 12, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Kohei Yano, Akiko Ogasawara, Tsuyoshi Chiba, Yuusuke Toyama, Shinichi Inoue, Masayuki Satake
  • Patent number: 7923120
    Abstract: Provided herein is a pressure sensitive adhesive for an optical film comprising: 100 parts by weight of a (meth)acrylic-based polymer (A) including an alkyl (meth)acrylate (a1) and a (meth)acrylic-based monomer containing a hydroxyl group (a2), as a copolymerizable component, in content in the range of from 0.01 to 5 parts by weight relative to 100 parts by weight of the alkyl (meth)acrylate (a1); 0.02 to 2 parts by weight of a peroxide (B); and 0.001 to 2 parts by weight of an isocyanate-based compound (C), the contents of the peroxide (B) and the isocyanate-based compound (C) being values relative to 100 parts by weight of the (meth)acrylic-based polymer (A).
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: April 12, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Yuusuke Toyama, Masayuki Satake, Akiko Ogasawara, Yutaka Moroishi, Fumiko Nakano
  • Patent number: 7622168
    Abstract: The present invention relates to a polarizing plate with pressure-sensitive adhesive type optical compensation layer, comprising a polarizing plate with optical compensation layer (1) and an optical compensation film (2) bonded to each other via a pressure-sensitive adhesive layer A, and a pressure-sensitive adhesive layer B at the opposite side of the optical compensation film (2) to the pressure-sensitive adhesive layer A, wherein both the pressure-sensitive adhesive layers A and B have a tensile elasticity of 0.1 MPa or less at 23° C. This polarizing plate with pressure-sensitive adhesive type optical compensation layer is capable of minimizing display irregularity even when placed in a high-temperature or high-temperature and high-humidity atmosphere.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: November 24, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Akiko Ogasawara, Masayuki Satake
  • Publication number: 20090233102
    Abstract: The invention relates to a pressure-sensitive adhesive for an optical film, comprising 0.02 to 2 parts by weight of a peroxide (B) and 0.01 to 5 parts by weight of an isocyanate-based compound (C) contained in 100 parts by weight of a (meth)acrylic polymer (A) consisting primarily of an alkyl(meth)acrylate and not containing a functional group reactive with an isocyanate group. By using the invented pressure-sensitive adhesive for an optical film, there can be obtained a pressure sensitive adhesion type optical film that can suppress warping and light leakage caused by a stress accompanying a dimensional change of members such as an optical film, has high durability, is excellent in handling ability in the manufacturing process and is excellent in quality.
    Type: Application
    Filed: November 17, 2005
    Publication date: September 17, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuusuke Toyama, Masayuki Satake, Akiko Ogasawara, Yutaka Moroishi, Fumiko Nakano
  • Publication number: 20090123718
    Abstract: A pressure-sensitive adhesive optical film of the present invention comprises: an optical film; and a pressure-sensitive adhesive layer laminated on at least one side of the optical film with an anchor layer interposed therebetween, wherein the anchor layer has a thickness of 5 to 300 nm, the pressure-sensitive adhesive layer has a thickness of 5 to 50 ?m, at least one of the anchor layer and the pressure-sensitive adhesive layer is made from a ammonia-containing water-dispersible material, the layer made from the ammonia-containing water-dispersible material contains ammonia in an amount of 10 ng or more per 1 cm2 of the pressure-sensitive adhesive optical film, wherein the amount is a measurement derived from the layer, and the pressure-sensitive adhesive optical film contains ammonia in a total amount of 2000 ng or less per 1 cm2 of the pressure-sensitive adhesive optical film.
    Type: Application
    Filed: January 23, 2007
    Publication date: May 14, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Akiko Ogasawara, Masayuki Satake
  • Patent number: 7503988
    Abstract: The invention is directed to a method of manufacturing an image display, comprising the step of sticking an adhesive optical film to an image display panel substrate surface having a display defect-inducible scratch, wherein the adhesive optical film is selected and used according to the image display panel such that the formula: Y×(0.97X+0.45)>0.19Z?0.006 is satisfied, wherein X (mm) is the amount of creep displacement one hour after a load of 500 g is applied at 23° C. to a 10 mm square of an adhesion area of the adhesive optical film stuck to the panel substrate, Y (mm) is the thickness of a pressure-sensitive adhesive layer of the adhesive optical film, and Z (mm) is a half length of the length of long side of the scratch of the image display panel substrate surface. According to the invention, a display defect, which would otherwise be caused by an scratch of the image display panel substrate, is avoided by filling the scratch with the pressure-sensitive adhesive layer of the adhesive optical film.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 17, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Osamu Hayashi, Masayuki Satake, Akiko Ogasawara
  • Publication number: 20090022988
    Abstract: Provided herein is a pressure sensitive adhesive for an optical film comprising: 100 parts by weight of a (meth)acrylic-based polymer (A) including an alkyl (meth)acrylate (a1) and a (meth)acrylic-based monomer containing a hydroxyl group (a2), as a copolymerizable component, in content in the range of from 0.01 to 5 parts by weight relative to 100 parts by weight of the alkyl (meth)acrylate (a1); 0.02 to 2 parts by weight of a peroxide (B); and 0.001 to 2 parts by weight of an isocyanate-based compound (C), the contents of the peroxide (B) and the isocyanate-based compound (C) being values relative to 100 parts by weight of the (meth)acrylic-based polymer (A).
    Type: Application
    Filed: September 3, 2008
    Publication date: January 22, 2009
    Inventors: Yuusuke Toyama, Masayuki Satake, Akiko Ogasawara, Yutaka Moroishi, Fumiko Nakano
  • Publication number: 20080274272
    Abstract: An antistatic optical film comprising an antistatic layer laminated on at least one side of an optical film, wherein the antistatic layer comprises a water soluble or a water dispersible conductive polymer, has excellent antistatic effect, optical characteristics and appearance.
    Type: Application
    Filed: February 18, 2008
    Publication date: November 6, 2008
    Inventors: Masayuki Satake, Akiko Ogasawara, Fumiaki Shirafuji, Toshitsugu Hosokawa, Shinichi Inoue
  • Patent number: 7435779
    Abstract: It is an object of the invention to provide a pressure sensitive adhesive for an optical film with which a pressure sensitive adhesive type optical film capable of suppressing bowing and light leakage caused by a stress accompanying a dimensional change of members such as an optical film, high in durability, excellent in handling ability in an aspect of a fabrication process thereof and good in quality can be obtained. There is provided a pressure sensitive adhesive for an optical film comprising: 100 parts by weight of a (meth)acrylic-based polymer (A) including an alkyl (meth)acrylate (a1) and a (meth)acrylic-based monomer containing a hydroxyl group (a2), as a copolymerizable component, in content in the range of from 0.01 to 5 parts by weight relative to 100 parts by weight of the alkyl (meth)acrylate (a1); 0.02 to 2 parts by weight of a peroxide (B); and 0.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: October 14, 2008
    Assignee: Nitto Denko Corporation
    Inventors: Yuusuke Toyama, Masayuki Satake, Akiko Ogasawara, Yutaka Moroishi, Fumiko Nakano
  • Patent number: 7413766
    Abstract: An antistatic optical film comprising an antistatic layer laminated on at least one side of an optical film, wherein the antistatic layer comprises a water soluble or a water dispersible conductive polymer, has excellent antistatic effect, optical characteristics and appearance.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: August 19, 2008
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Satake, Akiko Ogasawara, Fumiaki Shirafuji, Toshitsugu Hosokawa, Shinichi Inoue