Patents by Inventor Takahiro SAKAKIBARA

Takahiro SAKAKIBARA 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: 11071616
    Abstract: A filter device includes: a core member; a push member; first, second and third tubes; a first restriction member disposed on the first tube and configured to restrict a pushing movement of the third tube to the distal direction; a filter; a ring fixed to the opening; first and second wires, wherein the filter is configured in such a manner that the diameter of the opening is reduced by deformation of the shape of the ring, the deformation being caused by the first wires and the second wires when the push member fixed to the core member is pushed with the push member in contact with the second tube, and in such a manner that the diameter of the opening is expanded by restoration of the ring to the original shape, the restoration being caused by separating the push member fixed to the core member from the second tube.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 27, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Hajime Sakakibara, Takahiro Yagi
  • Patent number: 11066082
    Abstract: This invention provides technology that can provide a driver with an opportunity to decide whether or not to continue automatic drive control. A cancel point management system includes a cancel point collector that collects first notification information, indicating a manual cancel point which is a point where automatic drive control has been cancelled in response to operation by a driver in a notification vehicle, from the notification vehicle and a guide information distributer that distributes first guide information for showing the manual cancel point to a guide vehicle traveling on a road.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 20, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Xin Jin, Hironobu Sugimoto, Hiroaki Sakakibara, Shingo Kinashi, Kazuteru Maekawa, Sadahiro Koshiba, Takahiro Yamaguchi, Yuji Sato, Seiji Takahata
  • Patent number: 10988607
    Abstract: A resin composition (X), which is a curable resin composition according to the present invention, contains a curable resin component (10), a surface-modified nanodiamond (20), and an organic medium. The surface-modified nanodiamond (20) includes a ND particle (21), which is a nanodiamond particle, and a silane coupling agent (22). The silane coupling agent (22) has a (meth)acryloyl-containing organic chain and is bonded to the ND particle (21). The resin composition (X) is suitable for forming a nanodiamond-dispersed cured resin portion having both high transparency and high scratch resistance. An optical element according to the present invention has a light-transmitting region and includes a cured resin portion, which is a cured product of the resin composition (X), in at least part of the light-transmitting region. The optical element is advantageous for actually providing an optical element including a cured resin portion or cured resin layer having both high transparency and high scratch resistance.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: April 27, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Kouichi Umemoto, Takahiro Sakakibara
  • Publication number: 20210072426
    Abstract: An anti-reflection film (X) includes a laminated structure including a substrate (11), a hard coat layer (12), and an anti-reflection layer (13), and a luminous reflectance of the anti-reflection layer (13) side is 2% or less. A minimum value of a mandrel diameter indicating the bending resistance is in a range of 6 mm or less in a bending test according to a cylindrical mandrel method in which the test piece of the anti-reflection film (X) is bent with the anti-reflection layer (13) side inward. Additionally or alternatively, a minimum value of the mandrel diameter indicating the bending resistance is in a range of 10 mm or less in a bending test according to a cylindrical mandrel method in which the test piece of the anti-reflection film (X) is bent with the anti-reflection layer (13) side outward. Such an anti-reflection film is suitable for achieving high bending resistance together with high anti-reflective properties.
    Type: Application
    Filed: January 21, 2019
    Publication date: March 11, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Takahiro SAKAKIBARA, Masashi YOKOYAMA
  • Publication number: 20200282712
    Abstract: An anti-reflection film (X) of the present invention includes a laminated structure including a substrate (11), a hard coat layer (12), and an anti-reflection layer (13). The anti-reflection layer (13) contains a curable resin, low-refractive-index particles, and nanodiamond particles. The anti-reflection layer (13) may further contain a fluorine-containing curable compound. Such an anti-reflection film is suitable for achieving high scratch resistance together with high anti-reflective properties.
    Type: Application
    Filed: August 6, 2018
    Publication date: September 10, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Takahiro SAKAKIBARA, Kouichi UMEMOTO, Ryouta KOJIMA, Hiroki KAGEYAMA
  • Publication number: 20200192001
    Abstract: An anti-reflection film (X) of the present invention includes a laminated structure including a substrate (11), a hard coat layer (12), and an anti-reflection layer (13), and a luminous reflectance of the anti-reflection layer (13) side is 2% or less. The anti-reflection layer (13) includes a surface (13a) having a coefficient of kinetic friction of 0.3 or less and a coefficient of static friction of 0.3 or less. In addition, in the anti-reflection film (X), after a rubbing test performed on the surface (13a) using steel wool #0000 as a rubbing material under conditions of a load of 200 g/cm2, a rubbing stroke length of 10 cm, and reciprocations of 1000 times, a difference of the haze value (%) after the rubbing test from the haze value (%) before the rubbing test is 0.1 or less. Such an anti-reflection film is suitable for achieving high scratch resistance together with high anti-reflective properties.
    Type: Application
    Filed: August 6, 2018
    Publication date: June 18, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Takahiro SAKAKIBARA, Kouichi UMEMOTO, Ryouta KOJIMA, Hiroki KAGEYAMA
  • Publication number: 20190031874
    Abstract: A resin composition (X), which is a curable resin composition according to the present invention, contains a curable resin component (10), a surface-modified nanodiamond (20), and an organic medium. The surface-modified nanodiamond (20) includes a ND particle (21), which is a nanodiamond particle, and a silane coupling agent (22). The silane coupling agent (22) has a (meth)acryloyl-containing organic chain and is bonded to the ND particle (21). The resin composition (X) is suitable for forming a nanodiamond-dispersed cured resin portion having both high transparency and high scratch resistance. An optical element according to the present invention has a light-transmitting region and includes a cured resin portion, which is a cured product of the resin composition (X), in at least part of the light-transmitting region. The optical element is advantageous for actually providing an optical element including a cured resin portion or cured resin layer having both high transparency and high scratch resistance.
    Type: Application
    Filed: February 22, 2017
    Publication date: January 31, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Kouichi UMEMOTO, Takahiro SAKAKIBARA
  • Patent number: 9902826
    Abstract: A transparent layered film is produced by forming an anti-water-mark layer on a first side of a transparent resin layer and forming an uneven structure on a surface of the anti-water-mark layer, wherein the anti-water-mark layer comprises a cured product of a curable composition containing a curable resin, a thermoplastic resin, and a metal oxide particle having an average primary particle size of 1 to 100 nm, and the uneven structure has a roughness average Ra of not less than 0.005 and less than 0.03 ?m, a mean spacing of profile irregularities Sm of 50 to 300 ?m, an average absolute slope ?a of less than 0.1°, and a ten-point average roughness Rz of less than 0.2 ?m. Lamination of the film on a glass-containing upper electrode of a touch screen display prevents scattering of glass fragments produced by breakage of the upper electrode, occurrence of water marks, and sparkling on a high-definition display provided with the film.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: February 27, 2018
    Assignee: DAICEL CORPORATION
    Inventors: Takahiro Sakakibara, Hiroaki Ushida
  • Publication number: 20170022343
    Abstract: A transparent layered film is produced by forming an anti-water-mark layer on a first side of a transparent resin layer and forming an uneven structure on a surface of the anti-water-mark layer, wherein the anti-water-mark layer comprises a cured product of a curable composition containing a curable resin, a thermoplastic resin, and a metal oxide particle having an average primary particle size of 1 to 100 nm, and the uneven structure has a roughness average Ra of not less than 0.005 and less than 0.03 ?m, a mean spacing of profile irregularities Sm of 50 to 300 ?m, an average absolute slope ?a of less than 0.1°, and a ten-point average roughness Rz of less than 0.2 ?m. Lamination of the film on a glass-containing upper electrode of a touch screen display prevents scattering of glass fragments produced by breakage of the upper electrode, occurrence of water marks, and sparkling on a high-definition display provided with the film.
    Type: Application
    Filed: February 26, 2015
    Publication date: January 26, 2017
    Applicant: Daicel Corporation
    Inventors: Takahiro SAKAKIBARA, Hiroaki USHIDA