Patents by Inventor Sayaka Nose

Sayaka Nose 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: 11261378
    Abstract: The present invention aims to provide a polymerizable compound that has high storage stability without causing crystal precipitation when added to a polymerizable composition and to provide a polymerizable composition containing the polymerizable compound. A polymer film produced by polymerization of the polymerizable composition has a low haze, high thickness uniformity, low occurrence of nonuniform orientation, high surface hardness, high adhesiveness, and good appearances and fewer orientation defects even after ultraviolet irradiation. The present invention also aims to provide a polymer produced by polymerization of the polymerizable composition and an optically anisotropic body produced from the polymer.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 1, 2022
    Assignee: DIC CORPORATION
    Inventors: Masahiro Horiguchi, Sayaka Nose, Akihiro Koiso
  • Patent number: 10738242
    Abstract: A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 11, 2020
    Assignee: DIC CORPORATION
    Inventors: Fumiaki Kodera, Yoshitaka Saito, Hiroshi Hasebe, Masanao Takashima, Shuuhei Yamamoto, Kouzi Satou, Sayaka Nose, Kazuki Obi, Hiroyuki Itou
  • Patent number: 10655066
    Abstract: The problem that the present invention is to solve is to provide an optical film that has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state. The present invention provides an optical film containing a structural unit derived from a specific compound, that is, an optical film containing a structural unit derived from a compound represented by the general formula (I), which has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state, and also provides a display device including the optical film.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 19, 2020
    Assignee: DIC Corporation
    Inventors: Masahiro Horiguchi, Sayaka Nose, Yasuhiro Kuwana, Kouichi Endo
  • Patent number: 10633353
    Abstract: It is an object of the present invention to provide a polymerizable compound having a good liquid crystal property, a good alignment property, sufficient solubility in solvents, high preservation stability in a solution state, and high optical stability; a composition including the polymerizable compound; a polymer produced by polymerizing the polymerizable compound, such as a resin produced using the polymerizable compound; an optically anisotropic body including the polymer; and a liquid crystal display element and an organic EL device that include the optically anisotropic body. As a result of conducting intensive studies in order to achieve the above object, the compound represented by General Formula (I) is developed.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 28, 2020
    Assignee: DIC CORPORATION
    Inventors: Sayaka Nose, Yuji Ohashi, Junichi Mamiya, Akihiro Koiso, Tatsufumi Yamazaki
  • Patent number: 10336939
    Abstract: Provided are a compound represented by general formula (I), a liquid crystal composition that uses the compound, and a liquid crystal display device that uses the liquid crystal composition. Adding the compound represented by general formula (I) to a liquid crystal composition can prevent degradation of the liquid crystal composition by light, heat, etc. The compound represented by general formula (I) dissolves well in the liquid crystal composition. Thus, when the compound represented by general formula (I) is used, a liquid crystal composition having both low viscosity (?) and high reliability can be prepared, and a high-speed response liquid crystal display device can be provided.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 2, 2019
    Assignee: DIC CORPORATION
    Inventors: Masayuki Iwakubo, Sayaka Nose, Manabu Takachi, Yoshio Aoki
  • Patent number: 10095066
    Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by the general formula (I).
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: October 9, 2018
    Assignee: DIC CORPORATION
    Inventors: Martin Schadt, Sayaka Nose, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu
  • Publication number: 20180230385
    Abstract: A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.
    Type: Application
    Filed: April 16, 2018
    Publication date: August 16, 2018
    Applicant: DIC Corporation
    Inventors: Fumiaki Kodera, Yoshitaka Saito, Hiroshi Hasebe, Masanao Takashima, Shuuhei Yamamoto, Kouzi Satou, Sayaka Nose, Kazuki Obi, Hiroyuki Itou
  • Publication number: 20180223188
    Abstract: Provided are a compound represented by general formula (I), a liquid crystal composition that uses the compound, and a liquid crystal display device that uses the liquid crystal composition. Adding the compound represented by general formula (I) to a liquid crystal composition can prevent degradation of the liquid crystal composition by light, heat, etc. The compound represented by general formula (I) dissolves well in the liquid crystal composition. Thus, when the compound represented by general formula (I) is used, a liquid crystal composition having both low viscosity (?) and high reliability can be prepared, and a high-speed response liquid crystal display device can be provided.
    Type: Application
    Filed: June 23, 2016
    Publication date: August 9, 2018
    Applicant: DIC Corporation
    Inventors: Masayuki Iwakubo, Sayaka Nose, Manabu Takachi, Yoshio Aoki
  • Patent number: 9939555
    Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by the general formula (I).
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 10, 2018
    Assignee: DIC CORPORATION
    Inventors: Martin Schadt, Sayaka Nose, Masayuki Iwakubo, Masanao Hayashi, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu
  • Publication number: 20180037819
    Abstract: The problem that the present invention is to solve is to provide an optical film that has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state. The present invention provides an optical film containing a structural unit derived from a specific compound, that is, an optical film containing a structural unit derived from a compound represented by the general formula (I), which has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state, and also provides a display device including the optical film.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 8, 2018
    Inventors: Masahiro HORIGUCHI, Sayaka NOSE, Yasuhiro KUWANA, Kouichi ENDO
  • Publication number: 20180037817
    Abstract: The polymerizable composition prevents precipitation and the like of crystals and has high storage stability. A polymer compound is added to the polymerizable composition. In a case where a film-shaped polymer obtained by polymerizing the polymerizable composition is prepared, a tilt angle formed with an air interface is small, and glances of reflected light when a circularly polarizing plate is obtained by combining the polymer with a polarizing plate are removed. In addition, there is provided a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The polymerizable composition includes a reverse dispersible compound represented by General Formula (I), and a compound represented by General Formula (II).
    Type: Application
    Filed: January 12, 2016
    Publication date: February 8, 2018
    Applicant: DIC Corporation
    Inventors: Yasuhiro Kuwana, Masahiro Horiguchi, Toru Ishii, Sayaka Nose, Akihiro Koiso
  • Publication number: 20170369783
    Abstract: The present invention aims to provide a polymerizable compound that has high storage stability without causing crystal precipitation when added to a polymerizable composition and to provide a polymerizable composition containing the polymerizable compound. A polymer film produced by polymerization of the polymerizable composition has a low haze, high thickness uniformity, low occurrence of nonuniform orientation, high surface hardness, high adhesiveness, and good appearances and fewer orientation defects even after ultraviolet irradiation. The present invention also aims to provide a polymer produced by polymerization of the polymerizable composition and an optically anisotropic body produced from the polymer.
    Type: Application
    Filed: December 17, 2015
    Publication date: December 28, 2017
    Inventors: Masahiro HORIGUCHI, Sayaka NOSE, Akihiro KOISO
  • Publication number: 20170260150
    Abstract: It is an object of the present invention to provide a polymerizable compound having a good liquid crystal property, a good alignment property, sufficient solubility in solvents, high preservation stability in a solution state, and high optical stability; a composition including the polymerizable compound; a polymer produced by polymerizing the polymerizable compound, such as a resin produced using the polymerizable compound; an optically anisotropic body including the polymer; and a liquid crystal display element and an organic EL device that include the optically anisotropic body. As a result of conducting intensive studies in order to achieve the above object, the compound represented by General Formula (I) is developed.
    Type: Application
    Filed: December 1, 2015
    Publication date: September 14, 2017
    Applicant: DIC Corporation
    Inventors: Sayaka Nose, Yuji Ohashi, Junichi Mamiya, Akihiro Koiso, Tatsufumi Yamazaki
  • Patent number: 9684206
    Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a polymer represented by the general formula (I).
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: June 20, 2017
    Assignee: DIC CORPORATION
    Inventors: Martin Schadt, Vladimir Grigorievich Chigrinov, Hoi-Sing Kwok, Sayaka Nose, Masayuki Iwakubo, Masanao Hayashi, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu
  • Patent number: 9683174
    Abstract: [Object] To provide a liquid crystal alignment layer that can easily be formed, to which an anchoring force can be efficiently induced with less polarized light for exposure, and that is effective in controlling the orientation and pretilt angle of liquid crystal molecules, and a compound and polymer that can be used for such a liquid crystal alignment layer.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: June 20, 2017
    Assignee: DIC CORPORATION
    Inventors: Hiroshi Hasebe, Kazunori Maruyama, Fumiaki Kodera, Kunihiko Kotani, Sayaka Nose, Yoshio Aoki, Tetsuo Kusumoto
  • Publication number: 20160376507
    Abstract: [Object] To provide a liquid crystal alignment layer that can easily be formed, to which an anchoring force can be efficiently induced with less polarized light for exposure, and that is effective in controlling the orientation and pretilt angle of liquid crystal molecules, and a compound and polymer that can be used for such a liquid crystal alignment layer.
    Type: Application
    Filed: November 27, 2014
    Publication date: December 29, 2016
    Applicant: DIC CORPORATION
    Inventors: Hiroshi Hasebe, Kazunori Maruyama, Fumiaki Kodera, Kunihiko Kotani, Sayaka Nose, Yoshio Aoki, Tetsuo Kusumoto
  • Publication number: 20160274418
    Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by the general formula (I).
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Applicant: DIC CORPORATION
    Inventors: Martin Schadt, Sayaka Nose, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu
  • Patent number: 9360708
    Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by the general formula (I).
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: June 7, 2016
    Assignee: DIC CORPORATION
    Inventors: Martin Schadt, Sayaka Nose, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu
  • Patent number: 9340634
    Abstract: The present invention relates to materials used for aligning liquid crystals of liquid crystal display elements and to a polymer for use in liquid crystal vertical alignment layer used in producing a liquid crystal vertical alignment layer. The polymer for use in a liquid crystal vertical alignment layer includes (a) a moiety that is photochemically isomerizable but not photochemically crosslinked, (b) a moiety that is photochemically crosslinkable, and (c) a moiety that stabilizes a vertical alignment. The polymer can be used to produce a vertical alignment layer that has a liquid crystal alignment property enabling control of alignment at a low UV dose and that offers a large pretilt angle and superior optical stability.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 17, 2016
    Assignee: DIC CORPORATION
    Inventors: Sayaka Nose, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu, Martin Schadt, Vladimir Chigrinov, Hoi Sing Kwok
  • Publication number: 20140221574
    Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a polymer represented by the general formula (I).
    Type: Application
    Filed: June 27, 2012
    Publication date: August 7, 2014
    Applicant: DIC CORPORATION
    Inventors: Martin Schadt, Vladimir Grigorievich Chigrinov, Hoi-Sing Kwok, Sayaka Nose, Masayuki Iwakubo, Masanao Hayashi, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu