Patents Assigned to Dexerials Corporation
  • Publication number: 20210060912
    Abstract: A heat conductive sheet having excellent adhesion between an acrylic resin layer and a supporting sheet is provided. The heat conductive sheet includes a heat conductive resin layer including a heat conductive acrylic resin composition; and a supporting resin layer (supporting sheet) containing a polyvinyl acetal resin and a styrene-vinyl isoprene block copolymer. Crosslinking of the supporting sheet with acrylic monomers of the acrylic heat conductive resin layer enables improvements in adhesion between the heat conductive resin layer and the supporting sheet.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 4, 2021
    Applicant: DEXERIALS CORPORATION
    Inventor: Masayuki MATSUSHIMA
  • Patent number: 10935826
    Abstract: An image display device is manufactured by: applying a liquid photo-curable resin composition having a total value of cure shrinkage ratios based on pre-curing and complete curing of 3% or more to a surface of the light-transmitting cover member or a surface of the image display member with a thickness greater than that of the light-shielding layer to cancel the step between the light-shielding layer and the light-shielding layer forming surface of the light-transmitting cover member; pre-curing the photo-curable resin composition with the irradiation of ultraviolet rays to form a pre-cured resin layer; bonding the light-transmitting cover member to the image display member such that the pre-cured resin layer is placed inside; and subjecting the pre-cured resin layer to the irradiation of ultraviolet rays to achieve the complete curing thereof. The pre-curing is conducted to obtain a cure shrinkage ratio less than 3% in the complete curing thereof.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Kouichi Ogawa, Yoshihisa Shinya, Naoki Hayashi, Tomoyuki Toyoda
  • Patent number: 10937619
    Abstract: A fuse device that uses a fuse element having an appropriate size in order to improve the rating, while maintaining insulation performance. The fuse device is provided with a fuse element, a case having a housing space for housing the fuse element and having a lead-out port through which both ends of the fuse element are led out, and which supports the fuse element in a bridge-like manner in the housing space; and a shield disposed in the housing space for shielding an inner wall surface leading to the lead-out port from a scattered melted material from a fusing location of the fuse element.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: March 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Yoshihiro Yoneda, Kazuaki Suzuki
  • Patent number: 10936934
    Abstract: An antenna device, incorporated in an electronic apparatus, which communicates with an external device via an electromagnetic field signal, comprising: an antenna coil provided by winding a conducting wire in a two-dimensional shape and inductively coupled to the external device; and a thermal diffusion sheet provided so as to overlap the antenna coil at a surface of the antenna coil that faces the external device, wherein the thermal diffusion sheet is provided with a slit formed so as to extend from a region overlapping an opening of the antenna coil to an end of the thermal diffusion sheet and a thermal diffusion sheet side opening or slit connected to the slit and formed in the region overlapping the opening of the antenna coil.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Katsuhisa Orihara, Norio Saito, Masahiro Kobo
  • Patent number: 10934459
    Abstract: An adhesive tape structure can suppress protrusion of adhesive agent and blocking. The adhesive tape structure includes adhesive tapes each provided with a base film, an adhesive film, and a cover film laminated in this order, and a linking tape linking the adhesive tapes and configured such that the cover films of the adhesive tapes are integrally released. The adhesive tapes each have a part having a predetermined length completely removed from an edge portion of the adhesive film on a release initiation side in a cover film release direction; the adhesive tape thus has gaps in the edge portions of the adhesive films.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: March 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventor: Kazunori Hamazaki
  • Patent number: 10936931
    Abstract: An antenna device having excellent communication characteristics even when no opening is provided in a conductor. An antenna device including: an antenna coil inductively coupled to an external device (reader/writer) and provided by winding around a conducting wire two dimensionally via an opening; and a conductor provided to be overlapped with the antenna coil at a surface of the antenna coil opposing to the external device, wherein the conductor includes a first slit formed from a region overlapped with the opening of the antenna coil to an end of the conductor, and a second slit connected to the first slit and formed in the region overlapped with the opening of the antenna coil.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventor: Katsuhisa Orihara
  • Publication number: 20210053337
    Abstract: According to a method of manufacturing an image display device of the present invention, a photo-curable resin composition in a liquid state is applied to a surface of a light-transmitting cover member including a light-shielding layer or a surface of the image display member to a thickness greater than that of the light-shielding layer. Then, in this state, the photo-curable resin composition is irradiated with a UV ray to be pre-cured, thereby forming a pre-cured resin layer. Next, the image display member and the light-transmitting cover member are stacked via the pre-cured resin layer and thereafter, the pre-cured resin layer is irradiated with a UV ray to be completely cured, thereby forming a light-transmitting cured resin layer.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 25, 2021
    Applicant: DEXERIALS CORPORATION
    Inventors: Kouichi OGAWA, Yoshihisa SHINYA, Naoki HAYASHI, Tomoyuki TOYODA
  • Publication number: 20210053273
    Abstract: Provided are a master in which a more complicated microstructure is formed, a transferred object obtained by using the master, and a method of producing the master. A plurality of concave-convex groups each including a plurality of concavities or convexities are provided on a base material apart from each other. Average widths of areas occupied by the concavities or convexities at a surface of the base material are smaller than or equal to a wavelength belonging to a visible light band. Formed lengths of the concavities or convexities from the surface of the base material in each of the concave-convex groups each belong to any of at least two or more groups having different central values.
    Type: Application
    Filed: December 18, 2018
    Publication date: February 25, 2021
    Applicant: DEXERIALS CORPORATION
    Inventors: Masanao KIKUCHI, Hiroshi TAZAWA, Asahiko NOGAMI, Kazuya HAYASHIBE
  • Patent number: 10928574
    Abstract: Provided is a polarizing plate having an appropriate reflectance characteristic formed from an inexpensive material by an inexpensive production device. In a polarizing plate having a wire grid structure including: a transparent substrate; and a grid-like projection that is arranged on the transparent substrate at a pitch smaller than a wavelength of light in a used band and extends in a predetermined direction, an absorption layer constituting the grid-like projection contains an impurity semiconductor obtained by adding a minute amount of a specific element to an intrinsic semiconductor.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 23, 2021
    Assignee: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20210048573
    Abstract: Provided is a polarizing element having a wire grid structure, including: a transparent substrate; and grid-shaped convex portions arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band and extending in a predetermined direction, wherein the grid-shaped convex portion includes a first absorption layer, a first dielectric layer, a reflection layer, a second dielectric layer, and a second absorption layer in order from the transparent substrate side. Further, an optical device including the polarizing plate is provided.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Applicant: Dexerials Corporation
    Inventor: Tomu Takeda
  • Patent number: 10919184
    Abstract: There is provided a master, an optical body, and a master manufacturing method, including: forming, on a surface of a master body that includes a base material, a periodic micro concave-convex structure in which an average cycle of concavities and convexities is less than or equal to visible light wavelengths; forming an inorganic resist layer on the surface of the master body; microparticulating and spraying an organic resist dissolved in a diluent onto the inorganic resist layer, to thereby form an organic resist layer, on a surface of which is provided a macro concave-convex structure in which the average cycle of concavities and convexities is greater than the visible light wavelengths; and etching the organic resist layer, the inorganic resist layer, and the master body, to thereby superimpose and uniformly form the micro concave-convex structure and the macro concave-convex structure on the surface of the base material.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 16, 2021
    Assignee: DEXERIALS CORPORATION
    Inventor: Shunichi Kajiya
  • Publication number: 20210040360
    Abstract: An adhesive composition having a low dielectric constant and dielectric loss tangent and an excellent folding endurance includes: with respect to the total of 100 parts by mass of the adhesive composition, 75 to 90 parts by mass of a styrene elastomer; 3 to 25 parts by mass of a modified polyphenyleneether resin having a polymerizable group at an end; and totally 10 parts by mass or less of an epoxy resin and an epoxy resin curing agent.
    Type: Application
    Filed: January 21, 2019
    Publication date: February 11, 2021
    Applicant: DEXERIALS CORPORATION
    Inventors: Jun YAMAMOTO, Toshiyuki MINEGISHI, Kazuhiro DATE
  • Patent number: 10907027
    Abstract: A UV-photocured resin layer (and an image display device including the UV-photocured resin layer), the UV-photocured resin layer including the following cured components: an acrylate-based oligomer component selected from the group consisting of a polyisoprene-based (meth)acrylate oligomer, a polybutadiene-based (meth)acrylate oligomer, and a polyurethane-based (meth)acrylate oligomer; an acrylic-based monomer component including octyl acrylate or isobornyl acrylate; a plasticizer component; and a photoradical polymerization initiator component.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: February 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Naoki Hayashi, Tsukasa Nakamura
  • Patent number: 10906908
    Abstract: A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: February 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Hirofumi Kondo, Kouki Hatsuda, Nobuo Tano, Makiya Ito, Kyungsung Yun, Masayoshi Watanabe
  • Patent number: 10907250
    Abstract: Provided are a block copolymer pattern formation method that enables formation, over a large area, of a block copolymer pattern with a perpendicularly oriented lamellar structure enabling nanoscale surface shape control, and a diffraction limited optical element produced using the block copolymer pattern formation method. The block copolymer pattern formation method is a method for forming a block copolymer pattern on a substrate and includes forming an oblique angle vapor deposited film on the substrate, applying a block copolymer onto the oblique angle vapor deposited film that has been formed, and subjecting the block copolymer that has been applied to perpendicularly oriented lamellar structure development post-treatment to form a pattern with a perpendicularly oriented lamellar structure.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: February 2, 2021
    Assignee: Dexerials Corporation
    Inventors: Eiji Takahashi, Akio Takada, Nobuyuki Koike
  • Patent number: 10902973
    Abstract: An anisotropic conductive film has a first insulating resin layer and a second insulating resin layer. The first insulating resin layer is formed of a photopolymerized resin, the second insulating resin layer is formed of a thermo-cationically or thermo-anionically polymerizable resin, a photo-cationically or photo-anionically polymerizable resin, a thermo-radically polymerizable resin, or a photo-radically polymerizable resin, and conductive particles for anisotropic conductive connection are disposed in a single layer on a surface of the first insulating resin layer on a side of the second insulating resin layer. The elastic modulus of the anisotropic conductive film as a whole is 0.13 MPa or more.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: January 26, 2021
    Assignee: DEXERIALS CORPORATION
    Inventor: Kumiko Kitamura
  • Patent number: 10899949
    Abstract: An anisotropic conductive film or other filler-containing film 10A of the present invention includes a filler dispersed-layer 3 including a resin layer 2, a first filler layer with a filler 1A dispersed in a single layer in the resin layer 2, and a second filler layer with a filler 1B dispersed in a single layer in the resin layer 2 at a depth different from the depth of the first filler layer. The filler 1A of the first filler layer is exposed from one surface 2a of the resin layer 2, or is in close proximity to the surface 2a, and the filler 1B of the second filler layer is exposed from the other surface 2b of the resin layer 2, or is in close proximity to the surface 2b.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: January 26, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Reiji Tsukao, Makoto Matsubara
  • Publication number: 20210020542
    Abstract: Provided is a semiconductor device having excellent heat radiation performance and electromagnetic wave suppression effect. A semiconductor device 1 comprises: a semiconductor element 30 formed on a substrate 50; a conductive shield can 20 having an opening hole 21; a conductive cooling member 40 located above the conductive shield can 20; a heat conductive sheet 10 formed between the semiconductor element 30 and the conductive cooling member 40 at least through the opening hole 21; and a conductive member 11 electrically connecting the conductive shield can 20 and the conductive cooling member 40.
    Type: Application
    Filed: February 25, 2019
    Publication date: January 21, 2021
    Applicant: Dexerials Corporation
    Inventor: Tatsuo KUMURA
  • Publication number: 20210011374
    Abstract: Provided are a pattern formation method and a method for manufacturing a polarizing plate using the pattern formation method, the pattern formation method having: a step for forming, on a substrate, a linear guide pattern which is arranged at a predetermined pitch and is compatible with a portion of block chains of a block copolymer, and a neutral pattern embedded in the pattern of the guide pattern; a step for forming a layer including a block copolymer on the guide pattern and the neutral pattern; a step for heat-treating the layer including the block copolymer and forming a lamellar structure in which lamellar boundaries are arranged perpendicular to the substrate by microphase separation of the block copolymer; and a step for selectively removing a portion of the block chains of the block copolymer and thereby forming a line-and-space-shaped fine pattern having a smaller pitch than the guide pattern.
    Type: Application
    Filed: January 11, 2019
    Publication date: January 14, 2021
    Applicant: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Patent number: 10890844
    Abstract: There is provided an embossed film in which the frequency of loss of concavities is smaller, the embossed film including: a film main body; and a plurality of concavities formed on a surface of the film main body. A diameter of an opening surface of the concavity is larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of loss of concavities in one end portion of the film main body and the rate of loss of concavities in the other end portion of the film main body is 10 ppm or less.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: January 12, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Yutaka Muramoto, Masanao Kikuchi