Patents by Inventor Mutsuo Tezuka

Mutsuo Tezuka 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).

  • Patent number: 12012532
    Abstract: Provided are a curable resin composition having high durability and adherence to a base material such as a metal, a molded composite member formed by coating the base material with the curable resin composition and performing resin molding, and a production method for the same. The curable resin composition contains a polyamide-based resin, a blocked polyisocyanate, and an epoxy compound, and the polyamide-based resin has an amino group concentration from 20 to 300 mmol/kg, and has a water absorption of 1 mass % or less determined by a water absorption test specified by ASTM D570. The polyamide-based resin has a C8-18 alkylene chain and has a melting point from 160 to 250° C. Per 1 mol of amino groups of the polyamide-based resin, a proportion of isocyanate groups of the blocked polyisocyanate is from 1.5 to 5 mol, and a proportion of epoxy groups of the epoxy compound is from 0.1 to 0.8 mol.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: June 18, 2024
    Assignees: DAICEL-EVONIK LTD., HONDA MOTOR CO., LTD.
    Inventors: Mitsuteru Mutsuda, Hirofumi Iguchi, Toshiaki Nakamura, Nao Sato, Mutsuo Tezuka, Yasufumi Nakajima
  • Publication number: 20210198541
    Abstract: Provided are a curable resin composition having high durability and adherence to a base material such as a metal, a molded composite member formed by coating the base material with the curable resin composition and performing resin molding, and a production method for the same. The curable resin composition contains a polyamide-based resin, a blocked polyisocyanate, and an epoxy compound, and the polyamide-based resin has an amino group concentration from 20 to 300 mmol/kg, and has a water absorption of 1 mass % or less determined by a water absorption test specified by ASTM D570. The polyamide-based resin has a C8-18 alkylene chain and has a melting point from 160 to 250° C. Per 1 mol of amino groups of the polyamide-based resin, a proportion of isocyanate groups of the blocked polyisocyanate is from 1.5 to 5 mol, and a proportion of epoxy groups of the epoxy compound is from 0.1 to 0.8 mol.
    Type: Application
    Filed: August 7, 2019
    Publication date: July 1, 2021
    Applicants: DAICEL-EVONIK LTD., HONDA MOTOR CO.,LTD.
    Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI, Toshiaki NAKAMURA, Nao SATO, Mutsuo TEZUKA, Yasufumi NAKAJIMA
  • Patent number: 9004468
    Abstract: It is an object of the present invention to ensure that a torque rod breaks downward when a predetermined load or greater is input thereto. A torque rod has a first annular portion (21), a second annular portion (22), a connecting stay portion (24) that interconnects the first annular portion (21) and the second annular portion (22), a first attachment member (31) that is connected via a first rubber elastic body (41) inside the first annular portion (21), and a second attachment member (32) that is connected via a second rubber elastic body (42) inside the second annular portion (22). The connecting stay portion (24) has an upper fork portion (24U) and a lower fork portion (24L), and the bending strength of the lower fork portion (24L) is less than that of the upper fork portion (24U). A cavity portion (30) to which part of the first annular portion (21) is exposed is formed between the upper fork portion (24U) and the lower fork portion (24L).
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: April 14, 2015
    Assignees: Bridgestone Corporation, Honda Motor Co., Ltd.
    Inventors: Naoyuki Kamei, Mutsuo Tezuka
  • Publication number: 20130320181
    Abstract: It is an object of the present invention to ensure that a torque rod breaks downward when a predetermined load or greater is input thereto. A torque rod has a first annular portion (21), a second annular portion (22), a connecting stay portion (24) that interconnects the first annular portion (21) and the second annular portion (22), a first attachment member (31) that is connected via a first rubber elastic body (41) inside the first annular portion (21), and a second attachment member (32) that is connected via a second rubber elastic body (42) inside the second annular portion (22). The connecting stay portion (24) has an upper fork portion (24U) and a lower fork portion (24L), and the bending strength of the lower fork portion (24L) is less than that of the upper fork portion (24U). A cavity portion (30) to which part of the first annular portion (21) is exposed is formed between the upper fork portion (24U) and the lower fork portion (24L).
    Type: Application
    Filed: March 22, 2012
    Publication date: December 5, 2013
    Applicants: HONDA MOTOR CO., LTD., BRIDGESTONE CORPORATION
    Inventors: Naoyuki Kamei, Mutsuo Tezuka