Patents Assigned to Dexerials Corporation
  • Patent number: 12014840
    Abstract: Provided is an anisotropic conductive film manufacturing method capable of reducing manufacturing costs. Also provided is an anisotropic conductive film capable of suppressing the occurrence of conduction defects. The anisotropic conductive film manufacturing method includes: a holding step of supplying conductive particles having a plurality of particle diameters on a member having a plurality of opening parts, and holding the conductive particles in the opening parts; and a transfer step of transferring the conductive particles held in the opening parts to an adhesive film. In the particle diameter distribution graph (X-axis: particle diameter (?m), Y-axis: number of particles) of the conductive particles held in the opening parts, the shape of the graph is such that the slope is substantially infinite in a range at or above a maximum peak particle diameter.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: June 18, 2024
    Assignee: DEXERIALS CORPORATION
    Inventor: Junichi Nishimura
  • Publication number: 20240181445
    Abstract: The testing chip includes a first layer on one surface side and a second layer on another surface side, in which either the first layer or the second layer has a liquid-receiving section A, the first layer has at least a detection-confirming section B, the second layer has at least a liquid-distributing section D adjacent to the detection-confirming section B and a liquid flow path E connected to the liquid-distributing section D, the testing chip is configured such that when the test liquid is dropped onto the liquid-receiving section A, the test liquid distributes in a predetermined order by capillary action to reach the detection-confirming section B, and among surfaces of the first layer and surfaces of the second layer, at least surfaces of material M other than the liquid-receiving section A are sealed with a film.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 6, 2024
    Applicant: Dexerials Corporation
    Inventor: Takuya MONJU
  • Publication number: 20240159951
    Abstract: A wire grid polarizing element is provided that includes: a transparent substrate; and grid-like projections arranged on one surface of the transparent substrate with a pitch shorter than the wavelength of light in a used band, and extending in a predetermined direction. The transparent substrate is transparent to light in the used band. The grid-like projections each have a reflective layer, the dielectric layer, and an absorption layer, and have a surface on at least a part of which an inorganic structure capable of expressing water repellency exists.
    Type: Application
    Filed: October 18, 2023
    Publication date: May 16, 2024
    Applicant: Dexerials Corporation
    Inventor: Tomu Takeda
  • Publication number: 20240162405
    Abstract: A display device includes a plurality of light emitting elements, a substrate, and a cured resin film. The substrate has the plurality of light emitting elements thereon. The plurality of light emitting elements form an array, each corresponding to a subpixel constituting one picture element. The cured resin film connects the plurality of light emitting elements and the substrate. The cured resin film is composed of a plurality of individual pieces and has an exposed portion in which the substrate is exposed between the plurality of individual pieces.
    Type: Application
    Filed: March 23, 2022
    Publication date: May 16, 2024
    Applicant: DEXERIALS CORPORATION
    Inventors: Daiki NODA, Reiji TSUKAO, Toshiki SHIRAIWA
  • Patent number: 11982890
    Abstract: A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer can have a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×107 Pa or less. The cured resin layer can be formed from a resin composition that has a cure shrinkage of 5% or less.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: May 14, 2024
    Assignee: DEXERIALS CORPORATION
    Inventors: Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 11976769
    Abstract: Provided is an oil leakage repairing material, wherein the oil leakage repairing material is a curable composition, oil absorption of the oil leakage repairing material before curing is 100% or greater, and oil absorption of the oil leakage repairing material after curing is 50% or less.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 7, 2024
    Assignee: Dexerials Corporation
    Inventors: Yasutaka Mori, Takeshi Nishio, Takaaki Kubota, Tetsuya Abe
  • Publication number: 20240145201
    Abstract: A protective element includes a base substrate, a fusible conductor, a heater, and a heater-attached substrate. The base substrate has a first electrode and a second electrode formed thereon, the first electrode and the second electrode each being connected to an external circuit. The fusible conductor is supported on a first surface thereof by the base substrate and connected to the first electrode and the second electrode. The heater is configured to fuse the fusible conductor by generating heat. The heater-attached substrate has the heater provided thereon. The fusible conductor has one contact with the heater-attached substrate and the one contact is positioned on a second surface of the fusible conductor, which is an opposite surface to the first surface.
    Type: Application
    Filed: March 11, 2022
    Publication date: May 2, 2024
    Applicant: DEXERIALS CORPORATION
    Inventor: Chisato KOMORI
  • Publication number: 20240139822
    Abstract: A roll mold manufacturing method using a roll mold manufacturing apparatus, the apparatus comprising a rotary device configured to rotate a roll base material having either a tubular shape or a circular-column shape, and a predetermined machining stage comprising multiple cutting blades, the method comprising: a P cutting step of cutting a roll base material surface with a P cutting blade on the machining stage while moving the machining stage in a direction of an orientation P along the roll length direction; subsequently a step of switching from the P cutting blade to an N cutting blade on the machining stage; and subsequently an N cutting step of cutting the roll base material surface with the N cutting blade on the machining stage while moving the machining stage in a direction of another orientation N along the roll length direction.
    Type: Application
    Filed: March 25, 2022
    Publication date: May 2, 2024
    Applicant: Dexerials Corporation
    Inventors: Katsuhiro DOI, Kazuhiko NODA
  • Patent number: 11971569
    Abstract: There is provided a light emitting device that can be used as a light guide plate and has an excellent antireflection function to extraneous light, and an optical body includes: a base material; a macro concave-convex structure that is formed on one surface of the base material and emits internally propagating light that is injected in an inside of the base material from a side surface of the base material, from another surface of the base material; and a micro concave-convex structure formed periodically to follow each of both surfaces of the base material and a surface of the macro concave-convex structure, and having an average period of concavity and convexity of less than or equal to a wavelength of visible light. The surface of the macro concave-convex structure has an inclined surface, and an arrangement of the micro concave-convex structure is a zigzag arrangement.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 30, 2024
    Assignee: DEXERIALS CORPORATION
    Inventors: Shunichi Kajiya, Kyoko Sakurai, Katsuhiro Doi, Kazuya Hayashibe, Naoki Hanashima, Naoto Kaneko
  • Patent number: 11971568
    Abstract: A polarizing plate may have high transmittance characteristics and suppressed reflected light. An optical device may be provided with the polarizing plate. The polarizing plate may have a wire grid structure that includes a transparent substrate and grid-like projection portions arranged on the transparent substrate at a pitch shorter than the wavelength of light in a used bandwidth and extending in a predetermined direction. The grid-like projection portions may each have a reflective layer and a dielectric layer in order from the transparent substrate side. When viewed from the predetermined direction, the reflective layer has may have a step on the side thereof and may have the largest bottom width on the transparent substrate side.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 30, 2024
    Assignee: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20240136137
    Abstract: A fuse element includes a low-melting-point metal plate, a first high-melting-point metal layer, and a second high-melting-point metal layer. The low-melting-point metal plate has a first main surface, a second main surface, a first side surface, and a second side surface. The first main surface and the second main surface face each other. The first side surface and the second side surface face each other and each connect the first main surface and second main surface. The first high-melting-point metal layer is disposed on the first main surface and second main surface. The second high-melting-point metal layer is disposed on the first side surface and second side surface. The fuse element has a cut-out portion in which at least a portion of the second high-melting-point metal layer is cut out.
    Type: Application
    Filed: March 7, 2022
    Publication date: April 25, 2024
    Applicant: DEXERIALS CORPORATION
    Inventor: Yoshihiro YONEDA
  • Patent number: 11966068
    Abstract: Provided is a structural birefringence-type inorganic wave plate having excellent heat resistance and durability, and a fine pattern. Also provided is a manufacturing method for an inorganic wave plate by which, even in the case of a fine pattern, productivity is high, and a desired phase difference is easily achieved and stably obtained. This inorganic wave plate is obtained by utilizing a selective interaction between a polymer having a repeating unit containing a carbonyl group, and a metallic oxide precursor, the inorganic wave plate having a wire grid structure provided with a transparent substrate, and grid-shaped protruding portions arranged at a pitch shorter than the wavelength of light in a used band on at least one surface of the transparent substrate and extending in a predetermined direction, the main component of the grid-shaped protruding portion being a metallic oxide.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: April 23, 2024
    Assignee: Dexerials Corporation
    Inventors: Akio Takada, Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno
  • Publication number: 20240124758
    Abstract: A heat-conductive sheet includes a binder resin and a fibrous filler having a major axis and dispersed in the binder resin. The major axis of the fibrous filler is arranged at an angle of 70 to 90 degrees with respect to a surface direction of the heat-conductive sheet when viewed in a cross-section along a thickness direction of the heat-conductive sheet. If the heat-conductive sheet is processed to a shape having a thickness of 2 mm and a diameter of 29 mm, and subject to a compression such that the thickness is decreased by 40% of the thickness before the compression, at room temperature for 24 hours, a difference of an angle of the major axis of the fibrous filler after release of the compression and an angle of the major axis of the fibrous filler before the compression is in a range within 10 degrees.
    Type: Application
    Filed: January 27, 2022
    Publication date: April 18, 2024
    Applicant: DEXERIALS CORPORATION
    Inventors: Marina TOBATA, Keisuke ARAMAKI
  • Patent number: 11960103
    Abstract: The micro-lens array is a micro-lens array in which a plurality of micro-lenses are arranged in a matrix in a plan view, wherein each of the plurality of micro-lenses has four main sides in a plan view, and each of the four main sides is inclined with respect to a row virtual line parallel to a row direction or a column virtual line parallel to a column direction.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: April 16, 2024
    Assignee: DEXERIALS CORPORATION
    Inventors: Kazuyuki Shibuya, Shunsuke Kanasugi, Mitsuo Arima, Naoki Hanashima
  • Publication number: 20240116146
    Abstract: A method for producing a heat transfer sheet, includes: (A1) forming a mixture including at least one of a carbon fiber and a boron nitride flake, an inorganic filler, and a binder resin into a molded body in which the at least one of the carbon fiber and the boron nitride flake is oriented in a thickness direction of the molded body; (B1) slicing the molded body into a sheet shape to obtain a molded sheet; (C1) pressing the molded sheet; and (D1), after the pressing, inserting the molded sheet between films and performing a vacuum packing of the molded sheet with the films such that an uncured component of the binder resin present inside the molded sheet is exuded to a surface of the molded sheet, which is the heat transfer sheet.
    Type: Application
    Filed: February 3, 2022
    Publication date: April 11, 2024
    Applicant: DEXERIALS CORPORATION
    Inventors: Keisuke MUKASA, Yusuke KUBO, Keisuke ARAMAKI
  • Publication number: 20240117148
    Abstract: A thermally conductive sheet includes a binder resin and boron nitride flakes. The boron nitride flakes are oriented in a thickness direction of the thermally conductive sheet, and both surfaces of the thermally conductive sheet are tacky. A method for manufacturing a thermally conductive sheet includes preparing a thermally conductive composition containing a binder resin and boron nitride flakes. A molded block is formed from the thermally conductive composition. The molded block is sliced into a sheet shape to obtain a thermally conductive sheet precursor. The thermally conductive sheet precursor is pressed to obtain a thermally conductive sheet.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 11, 2024
    Applicant: DEXERIALS CORPORATION
    Inventors: Keisuke ARAMAKI, Yuma SATO, Yusuke KUBO
  • Publication number: 20240120254
    Abstract: A thermally-conductive sheet includes: a binder; and an anisotropic thermally-conductive filler. The anisotropic thermally-conductive filler is oriented in a thickness direction of the thermally-conductive sheet An arithmetical mean height Sa is 5 ?m or less and a maximum height Sz is 50 ?m or less on either surface of the thermally-conductive sheet. A dielectric breakdown voltage of the thermally-conductive sheet is 0.5 kV/mm or higher.
    Type: Application
    Filed: February 9, 2022
    Publication date: April 11, 2024
    Applicant: DEXERIALS CORPORATION
    Inventors: Keisuke ARAMAKI, Yuma SATO, Yusuke KUBO
  • Patent number: 11952297
    Abstract: Provided are an extract, which is a fractionated component 1 of a water extract of a plant powder, wherein the fractionated component 1 is a fractionated component having a fractionation molecular weight of 12,000 or greater, wherein an ethanol-undissolved component of the fractionated component 1 exhibits a peak attributable to carboxylic acid in a Fourier transform infrared spectroscopy (FT-IR) measurement and exhibits a peak attributable to cellulose in a gas chromatography mass spectrometry (GC-MS) measurement, and wherein an ethanol-dissolved component of the fractionated component 1 exhibits a peak attributable to carboxylic acid in the FT-IR measurement and exhibits a peak attributable to a plant protein in the GC-MS measurement, and a water-purifying agent containing the extract.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: April 9, 2024
    Assignee: DEXERIALS CORPORATION
    Inventors: Takanori Fujita, Ryu Shimada, Masahiko Ito, Masato Hasegawa
  • Patent number: 11945203
    Abstract: In the method of manufacturing an image display apparatus according to the present invention, a liquid photocurable resin composition that does not contain a thermal polymerization initiator is coated on the surface of a light-transmissive cover member including a light shielding layer or the surface of an image display member in a thickness thicker than that of the light shielding layer, and thereafter UV rays are irradiated in that state for curing to form a light-transmissive cured resin layer. Then, the image display member and the light-transmissive cover member are laminated to each other via the light-transmissive cured resin layer to obtain an image display apparatus.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: April 2, 2024
    Assignee: DEXERIALS CORPORATION
    Inventors: Kouichi Ogawa, Yoshihisa Shinya, Naoki Hayashi, Tomoyuki Toyoda
  • Patent number: 11929303
    Abstract: Provided is a semiconductor device having excellent heat dissipation capacity and electromagnetic wave suppression effect. A semiconductor device 1 includes a semiconductor element 30; a conductive cooling member 40 provided above the semiconductor element 30, a conductive thermally conductive member 10 that is provided between the semiconductor element 30 and the cooling member 40 and contains a cured resin. The conductive thermally conductive member 10 is connected to a ground 60 in the substrate 50 to electrically connect the cooling member 40 and the ground 60.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: March 12, 2024
    Assignee: Dexerials Corporation
    Inventors: Yusuke Kubo, Sergey Bolotov