Patents by Inventor Takuya TAKADA

Takuya TAKADA 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).

  • ORGANIC ELECTROLUMINESCENCE DEVICE AND MONOAMINE COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20240147844
    Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region.
    Type: Application
    Filed: November 29, 2023
    Publication date: May 2, 2024
    Inventors: Hideo MIYAKE, Masatsugu UENO, Xiulan JIN, Ichinori TAKADA, Takuya UNO, Hiroaki ITOI
  • Friction material
    Patent number: 11905182
    Abstract: A friction material includes granulated hematite fired particle. The granulated hematite fired particle has 25 ?m to 300 ?m of an average particle diameter. The granulated hematite fired particle has 30 mm3/g to 300 mm3/g of a fine pore volume.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: February 20, 2024
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya Takada, Motoyuki Miyaji, Kentaro Owa
  • FRICTION MATERIAL
    Publication number: 20220381309
    Abstract: There is provided a friction material including: a friction modifier; a binder; and a fibrous material. A phosphate-based dispersant is contained as the friction modifier. Preferably, a content of the phosphate-based dispersant is 0.2 mass % to 2.0 mass %. Preferably, the phosphate-based dispersant is at least one selected from a group consisting of sodium hexametaphosphate, sodium polyphosphate, and sodium pyrophosphate.
    Type: Application
    Filed: October 16, 2020
    Publication date: December 1, 2022
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Kentaro OWA, Motoyuki MIYAJI, Takuya TAKADA, Kenta KIMURA
  • FRICTION MATERIAL FOR DISC BRAKE
    Publication number: 20220163081
    Abstract: An object of the present invention is to provide a friction material for disc brake that can prevent occurrence of a rust adhesion phenomenon and has stable friction characteristics even after being left in a low temperature and high humidity environment. The present invention relates to a friction material for disc brake, containing: a wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 26, 2022
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya TAKADA, Motoyuki MIYAJI, Kentaro OWA, Kenta KIMURA
  • FRICTION MATERIAL
    Publication number: 20220010857
    Abstract: A friction material includes a friction modifier, a binder, and a fibrous material. An alkali metal salt of phosphoric acid and a metal sulfide are contained as the friction modifier. The alkali metal salt of phosphoric acid may include trisodium phosphate. A wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol may be contained as the friction modifier.
    Type: Application
    Filed: March 16, 2020
    Publication date: January 13, 2022
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yuta WATANABE, Motoyuki MIYAJI, Hiroshi YAMAMOTO, Takuya TAKADA
  • Friction material composition and friction material
    Patent number: 11209063
    Abstract: A friction material composition of the present invention includes a fibrous base, a friction regulator, and a binder and has a copper content of 0.5 mass % or less in terms of copper element amount. The friction material composition contains regenerated cellulosic fibers as the fibrous base. In an embodiment of the friction material composition, the regenerated cellulose fiber has a fiber length of 2 mm to 20 mm.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: December 28, 2021
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toru Kawata, Takuya Takada, Motoyuki Miyaji
  • FRICTION MATERIAL
    Publication number: 20200239327
    Abstract: A friction material includes granulated hematite fired particle. The granulated hematite fired particle has 25 ?m to 300 ?m of an average particle diameter. The granulated hematite fired particle has 30 mm3/g to 300 mm3/g of a fine pore volume.
    Type: Application
    Filed: August 8, 2018
    Publication date: July 30, 2020
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya TAKADA, Motoyuki MIYAJI, Kentaro OWA
  • Friction material
    Patent number: 10584757
    Abstract: A friction material includes a bio-soluble inorganic fiber and a metal sulfide. A content of the bio-soluble inorganic fiber based on the friction material is 7% by volume or more. The friction material includes no copper component and no metal fiber. The friction material may further include zinc.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 10, 2020
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya Takada, Hiroshi Tokumura, Toru Kawata
  • FRICTION MATERIAL COMPOSITION AND FRICTION MATERIAL
    Publication number: 20200063814
    Abstract: A friction material composition of the present invention includes a fibrous base, a friction regulator, and a binder and has a copper content of 0.5 mass % or less in terms of copper element amount. The friction material composition contains regenerated cellulosic fibers as the fibrous base. In an embodiment of the friction material composition, the regenerated cellulose fiber has a fiber length of 2 mm to 20 mm.
    Type: Application
    Filed: November 1, 2017
    Publication date: February 27, 2020
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toru KAWATA, Takuya TAKADA, Motoyuki MIYAJI
  • Friction material
    Patent number: 10233989
    Abstract: A friction material includes a fiber base material, a friction modifying material and a binder. The friction modifying material includes alumina particles including, as a main component, ?-alumina particles. The ?-alumina particles are contained in an amount of 1 mass % or more in the friction material.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: March 19, 2019
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya Takada, Motoyuki Miyaji, Toru Kawata
  • FRICTION MATERIAL
    Publication number: 20180355935
    Abstract: A friction material includes a bio-soluble inorganic fiber and a metal sulfide. A content of the bio-soluble inorganic fiber based on the friction material is 7% by volume or more. The friction material includes no copper component and no metal fiber. The friction material may further include zinc.
    Type: Application
    Filed: November 22, 2016
    Publication date: December 13, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya TAKADA, Hiroshi TOKUMURA, Toru KAWATA
  • FRICTION MATERIAL
    Publication number: 20170254378
    Abstract: A friction material includes a fiber base material, a friction modifying material and a binder. The friction modifying material includes alumina particles including, as a main component, ?-alumina particles. The ?-alumina particles are contained in an amount of 1 mass % or more in the friction material.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takuya TAKADA, Motoyuki MIYAJI, Toru KAWATA
  • Vehicular disc brake rotor and manufacturing method of vehicular disc brake rotor
    Patent number: 9541144
    Abstract: A vehicular disc brake rotor is provided with a cast-iron base, a nitrogen diffusion layer formed on the cast-iron base, a nitrogen compound layer formed on the nitrogen diffusion layer, and an iron oxide layer including Fe3O4 and formed on the nitrogen compound layer. In a burnish and a first re-burnish of a “Passenger car-Braking device-Dynamometer test procedures” (which is based on JASO C 406:2000), a change ratio of a frictional coefficient between the burnish and the first re-burnish is 10% or less.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 10, 2017
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yoshiyuki Sugai, Katsuji Seki, Takuya Takada
  • FRICTION MATERIAL
    Publication number: 20160289442
    Abstract: A friction material includes a binder, a friction adjusting material and a fiber base material. The friction material does not contain a copper component. The friction material includes: at least any one of aluminum and an Fe—Al intermetallic compound; alumina; chromite; and a steel fiber.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 6, 2016
    Inventors: Takuya TAKADA, Katsuji SEKI, Yoshiyuki SUGAI, Tomomi YASUNO
  • Manufacturing method of cast-iron friction member
    Patent number: 9422994
    Abstract: A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including Fe3O4 on a surface of the nitrogen compound layer.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: August 23, 2016
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yoshiyuki Sugai, Katsuji Seki, Takuya Takada
  • VEHICULAR DISC BRAKE ROTOR AND MANUFACTURING METHOD OF VEHICULAR DISC BRAKE ROTOR
    Publication number: 20140060983
    Abstract: A vehicular disc brake rotor is provided with a cast-iron base, a nitrogen diffusion layer formed on the cast-iron base, a nitrogen compound layer formed on the nitrogen diffusion layer, and an iron oxide layer including Fe3O4 and formed on the nitrogen compound layer. In a burnish and a first re-burnish of a “Passenger car-Braking device-Dynamometer test procedures” (which is based on JASO C 406:2000), a change ratio of a frictional coefficient between the burnish and the first re-burnish is 10% or less.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Applicant: Akebono Brake Industry Co., Ltd
    Inventors: Yoshiyuki SUGAI, Katsuji SEKI, Takuya TAKADA
  • MANUFACTURING METHOD OF CAST-IRON FRICTION MEMBER
    Publication number: 20140060704
    Abstract: A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including Fe3O4 on a surface of the nitrogen compound layer.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Applicant: AKEBOND BRAKE INDUSTRY CO., LTD.
    Inventors: Yoshiyuki SUGAI, Katsuji SEKI, Takuya TAKADA