Patents Assigned to Nitto-Denko
  • Publication number: 20230284394
    Abstract: Provided is a method for producing a wiring circuit board capable of improving the dimensional accuracy of a second conductive layer. The wiring circuit board produced by the producing method includes a metal supporting layer, a first insulating layer disposed on one surface of the metal supporting layer in a thickness direction, a first conductive layer disposed on one surface of the first insulating layer in the thickness direction, a second insulating layer disposed on one surface of the first insulating layer in the thickness direction so as to cover the first conductive layer, and a second conductive layer disposed on one surface of the second insulating layer in the thickness direction. The producing method includes a step of forming the second insulating layer by bonding a film made of a photosensitive resin to one surfaces of the first insulating layer and the first conductive layer in the thickness direction.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Naoki SHIBATA, Ryosuke SASAOKA
  • Publication number: 20230280523
    Abstract: A lightguide component for illumination devices includes: a lightguide layer having a first principal face, a second principal face at an opposite side from the first principal face, and a light-receiving side face to receive light emitted from a light source; a first low-refractive index layer (20A) that is disposed at the first principal face side of the lightguide layer, the first low-refractive index layer having a refractive index nL1 which is smaller than a refractive index nGP of the lightguide layer; and a light distribution controlling structure (14A, 14B) capable of at least directing a portion of light propagating in the lightguide layer toward the first low-refractive index layer or in an opposite direction from the first low-refractive index layer. The lightguide component has a visible light transmittance of 60% or more, and a haze value of less than 10%.
    Type: Application
    Filed: July 27, 2021
    Publication date: September 7, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kozo NAKAMURA, Yufeng WENG, Takahiro YOSHIKAWA
  • Publication number: 20230278318
    Abstract: A multilayer structure includes one or more resin layers; and a glass layer laminated over the resin layers via bonding layers, wherein when ?0 is a critical radius of curvature at which the glass layer does not break even though the multilayer structure being bent so that the glass layer is inside, a ratio t/?0 of a thickness t of the glass layer to the critical radius of curvature ?0 is 0.001 or more and 0.02 or less.
    Type: Application
    Filed: July 19, 2021
    Publication date: September 7, 2023
    Applicant: Nitto Denko Corporation
    Inventors: Takeshi Murashige, Junichi Inagaki, Keisuke Sato, Atsushi Kishi
  • Publication number: 20230280005
    Abstract: A desktop illumination device includes a light source; and a light guide including a light guide plate. The light guide plate has a light incident surface and first and second main surfaces. An angle at which an intensity becomes maximum in a light distribution of light emitted from the first main surface is in a range of ?90° or more to less than 0°, in a case where an axis passing through a center of the first main surface and perpendicular to an installation surface is defined as a vertical axis, and in a plane including the vertical axis and perpendicular to the installation surface, a direction parallel to the installation surface is defined as vertical 0°, an upward angle with respect to the vertical 0° is defined as a positive angle, and a downward angle with respect to the vertical 0° is defined as a negative angle.
    Type: Application
    Filed: July 19, 2021
    Publication date: September 7, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takahiro YOSHIKAWA, Kozo NAKAMURA, Yufeng WENG
  • Patent number: 11747551
    Abstract: A plastic optical fiber includes a plastic optical fiber body and a coloring member covering a peripheral surface of the plastic optical fiber body. The coloring member is made from a cured product of a curable composition containing an active-energy-ray-curable multifunctional acrylate and a coloring agent. The reaction percentage yield of the vinyl group of the active-energy-ray-curable multifunctional acrylate in the coloring member is 85% or more.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 5, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yasuaki Okada, Takeshi Saito, Kenjiro Saomoto
  • Publication number: 20230273363
    Abstract: An optical incoupling element (100) provided in the form of a discrete item attachable on a lightguide (20) is provided, comprising a substrate (100A) and at least one three-dimensionally formed optical surface (104). The optical surface (104) is configured to incouple light incident thereto and to adjust direction of the incoupled light transmitted through an optical contact surface (107) established at an interface between the element substrate (100A) and a lightguide medium (20) such, that the incoupled light acquires a propagation path through a lightguide medium (20) via a series of total internal reflections. The optical surface (104) may comprise at least on optical cavity pattern (101). The element (100) is configured to receive light onto said at least one three-dimensionally formed optical surface (104) from a direction essentially parallel to a longitudinal plane of the planar lightguide (20).
    Type: Application
    Filed: August 4, 2021
    Publication date: August 31, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kozo NAKAMURA, Minoru MIYATAKE, Yufeng WENG, Kari RINKO, Shingo MATSUMOTO
  • Patent number: 11737982
    Abstract: This invention provides compositions for making a solid lyophile of one or more nucleic acid active agents, which can be reconstituted as a drug product. The composition can include an aqueous suspension of lipid nanoparticles in a pharmaceutically acceptable solution, wherein the lipid nanoparticles encapsulate one or more nucleic acid active agents, a dextrin compound, and a saccharide compound. The nucleic acid active agents can be RNAi molecules capable of mediating RNA interference, as well as other RNAs and oligonucleotides.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: August 29, 2023
    Assignee: Nitto Denko Corporation
    Inventors: Roger Adami, Yuwei Wang, Haiqing Yin, Liping Wang, Dong Liu, Wenbin Ying
  • Patent number: 11738534
    Abstract: Provided is a glass film-resin composite which makes it possible to obtain a long-length (e.g., 500 m or more-long) glass roll. The glass film-resin composite comprises a glass film, and a resin tape laminated to at least one surface of the glass film through an adhesive, wherein the width 1 (mm) of the resin tape satisfies the following formula (1). l ? ? ? a ? E g ? t g E p ? t p ( 1 ) (where: a represents a reinforcement coefficient (mm*(?m)1/2) which is 1.10 or more; Eg represents the Young's modulus (GPa) of the glass film; Ep represents the Young's modulus (GPa) of the resin tape; tg represents the thickness (?m) of the glass film; and tp represents the thickness (?m) of the resin tape.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 29, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takeshi Murashige, Junichi Inagaki, Kazuhito Hosokawa, Kota Nakai, Toshihiro Kanno
  • Patent number: 11739853
    Abstract: A ventilation component includes a valve body portion, a shaft portion, a ventilation path, and a gas-permeable membrane. The shaft portion extends in a normal direction of the valve body portion. The shaft portion supports the valve body portion. The ventilation path extends through the shaft portion. The gas-permeable membrane closes the ventilation path. In a state where the ventilation component is fixed to a housing, a flow of gas passing through a peripheral opening is blocked by the valve body portion, and ventilation occurs between an inner space and an external space via the gas-permeable membrane. When a pressure difference obtained by subtracting a pressure of the external space from a pressure of the inner space is equal to or higher than a predetermined value, the valve body portion elastically deforms to be away from an outer surface to release the pressure of the inner space.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: August 29, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yusuke Nakayama, Youzou Yano, Tomoyuki Kasagi, Akira Miyagaki
  • Patent number: 11735355
    Abstract: An inductor includes a wire having a width W, and a first electrode and a second electrode continuous to each of both ends of the wire. The wire, the first electrode, and the second electrode are present on the same plane. The plane area S1 of the first electrode and the plane area S2 of the second electrode are a square value (W2) or more of the width W. An area in which the wire is disposed is positioned between the first electrode and the second electrode. The area has a length X in a longitudinal direction equal to a length L between the first electrode and the second electrode along a facing direction of the first electrode and the second electrode, and a length Y in a short-length direction in a direction perpendicular to the longitudinal direction. The length X in the longitudinal direction is 1.5 times or more of the length Y in the short-length direction.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 22, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventor: Yoshihiro Furukawa
  • Patent number: 11733447
    Abstract: A transparent optical device (100) is provided, comprising a lightguide medium (101) configured for light propagation, and an at least one optically functional layer (10) comprising at least one optically functional feature pattern (11) formed in a light-transmitting carrier medium (11 1) by a plurality of embedded features provided as optically functional internal cavities (12), wherein said at least one feature pattern (11) is configured to perform an incident light control function and at least a light outcoupling function, whereby stray light is minimized and optical transparency of the device (100) is established.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 22, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kari Rinko, Shingo Matsumoto
  • Patent number: 11731412
    Abstract: Provided is a production method for a film laminate by which a tough film can be bonded to a brittle film while the breakage of the brittle film is prevented. The production method for a film laminate of the present invention includes bonding a tough film having an elongated shape to a brittle film having an elongated shape while conveying the brittle film, wherein the method includes bonding the tough film and the brittle film to each other by bringing the tough film close to the brittle film, followed by blowing of a gas from a side of the tough film opposite to the brittle film.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: August 22, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Junichi Inagaki, Takeshi Murashige, Kazuhito Hosokawa, Toshihiro Kanno, Kota Nakai
  • Publication number: 20230256727
    Abstract: A method is disclosed for dividing a composite material 10 including a brittle material layer 1 and a resin layer 2 that are laminated together, the method includes: a resin removing step of applying laser light L1 oscillated from a CO2 laser light source 20 to the resin layer along a planned division line DL of the composite material, so that a processed groove 24 is formed along the planned division line; and a brittle material removing step of applying, after the resin removing step, laser light L2 oscillated from an ultrashort pulsed laser light source 30 to the brittle material layer along the planned division line, so that processed marks 11 are formed along the planned division line. The processed marks formed in the brittle material removing step open on the resin layer side and do not penetrate through the brittle material layer.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 17, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Toshihiro Kanno, Satoshi Hirata, Kota Nakai, Takeshi Murashige, Junichi Inagaki
  • Publication number: 20230258893
    Abstract: In an opto-electric hybrid board, an electric circuit part E is provided on a first surface side of an insulative layer, and includes pads for mounting an optical element, pads for a driving device for the optical element, and electrical interconnect lines Y including interconnect line portions A connecting the pads. A metal reinforcement layer and an optical waveguide W partially overlapping the metal reinforcement layer are provided on a second surface side of the insulative layer. A portion of the metal reinforcement layer which faces the interconnect line portions A on the opposite side of the insulative layer therefrom is removed to form an opening. This opto-electric hybrid board is capable of transmitting higher-frequency electric signals because the influence of the metal reinforcement layer on electrical properties is suppressed.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 17, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tadao Okawa, Takashi Oda, Masataka Yamaji, Kazushi Ichikawa
  • Publication number: 20230254971
    Abstract: Provided is a wiring circuit board and a wiring circuit board assembly that allow suppression of the recognition error of the dot pattern. The wiring circuit board includes a metal supporting layer, an insulating base layer, and a wiring layer. The wiring circuit board further includes a plurality of streak groove portions disposed on one surface of the metal supporting layer in the thickness direction and a plurality of concave portions depressed in the metal supporting layer in the thickness direction. The plurality of concave portions forms a dot pattern. Each of the dots in dot pattern has one concave surface. The concave surface has an approximately spherical cap shape or an approximately cone shape.
    Type: Application
    Filed: February 1, 2023
    Publication date: August 10, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Hayato TAKAKURA, Naoki SHIBATA, Kenya TAKIMOTO, Chihiro WATANABE
  • Publication number: 20230251437
    Abstract: An optical module includes: an electric circuit board E including an electric circuit provided on a light-permeable resin substrate 1; and an optical element 11 joined onto the electric circuit board E. The optical element 11 is joined to the electric circuit board E, with a light-emitting portion (or light-receiving portion) 11a of the optical element 11 facing an electric circuit surface side of the electric circuit board E. A space between the light-emitting portion (or light-receiving portion) 11a of the optical element 11 and the light-permeable resin substrate 1 is filled with a light-permeable resin cured material X. A relative refractive index difference between the light-permeable resin cured material X and the light-permeable resin substrate 1 is not greater than 20%. This reduces the propagation loss of light with a simple structure.
    Type: Application
    Filed: June 30, 2021
    Publication date: August 10, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kazuaki Suzuki, Naoto Konegawa, Tadao Okawa, Koji Ichinose
  • Publication number: 20230254973
    Abstract: An optical communication module substrate includes a wiring board and an opto-electronic hybrid substrate, the wiring board and the opto-electronic hybrid substrate being connected to each other, in which a connection terminal of the wiring board and a connection terminal of the opto-electronic hybrid substrate are electrical connection points, and a frame-shaped removal portion is formed by removing a portion of the metal reinforcing layer of the opto-electronic hybrid substrate that faces the connection terminal with the insulating layer interposed between the metal reinforcing layer and the connection terminal, so as to surround each terminal. According to this configuration, the connection strength at the connection point between the wiring board and the opto-electronic hybrid substrate is sufficiently ensured, and the optical communication module substrate has excellent electrical properties that are compatible with high-speed signal transmission.
    Type: Application
    Filed: June 21, 2021
    Publication date: August 10, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tadao Okawa, Takashi Oda, Masataka Yamaji, Kazushi Ichikawa
  • Patent number: D996063
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: August 22, 2023
    Assignees: NITOMS, INC., NITTO DENKO CORPORATION
    Inventors: Masami Miwa, Mario A. Turchi, Steve Madsen
  • Patent number: D996064
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: August 22, 2023
    Assignees: NITOMS, INC., NITTO DENKO CORPORATION
    Inventors: Masami Miwa, Mario A. Turchi, Steve Madsen
  • Patent number: D996762
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: August 22, 2023
    Assignees: NITOMS, INC., NITTO DENKO CORPORATION
    Inventors: Masami Miwa, Mario A. Turchi, Steve Madsen