Patents by Inventor Takuya Tsunemasu

Takuya Tsunemasu 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).

  • METHOD FOR PRODUCING COMPOSITE MATERIAL MOLDED ARTICLE, METHOD FOR PRODUCING RETAINER AND ROLLING BEARING, AND METHOD FOR PRODUCING GEARBOX CONSTITUENT COMPONENT
    Publication number: 20240269946
    Abstract: A method for producing a composite material molded article includes a process of, from a solution in which reinforcing fibers with an average fiber length of 0.5 mm or more and thermosetting resin are dispersed and mixed in a solvent, removing the solvent by paper-making to form a preform, and a process of press molding the obtained preform using a mold set at a temperature equal to or higher than a curing temperature of the thermosetting resin to form the composite material molded article.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 15, 2024
    Applicant: NSK LTD
    Inventors: Takuya TSUNEMASU, Tomoaki MATSUMOTO
  • Phenol resin for wet friction material, phenol resin composition, and wet friction material
    Patent number: 11512754
    Abstract: A phenol resin for a wet friction material of the invention contains a resol-type phenol resin having, in one molecule, a structural unit A which is derived from a phenol compound having one phenolic hydroxyl group and a structural unit B which is derived from a polyfunctional phenol compound having two phenolic hydroxyl groups.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: November 29, 2022
    Assignees: NSK-Warner K.K., SUMITOMO BAKELITE CO., LTD.
    Inventors: Takuya Tsunemasu, Takao Kunimi
  • PHENOL RESIN FOR WET FRICTION MATERIAL, PHENOL RESIN COMPOSITION, AND WET FRICTION MATERIAL
    Publication number: 20200271177
    Abstract: A phenol resin for a wet friction material of the invention contains a resol-type phenol resin having, in one molecule, a structural unit A which is derived from a phenol compound having one phenolic hydroxyl group and a structural unit B which is derived from a polyfunctional phenol compound having two phenolic hydroxyl groups.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 27, 2020
    Applicants: NSK-WARNER K.K., SUMITOMO BAKELITE CO., LTD.
    Inventors: Takuya Tsunemasu, Takao Kunimi