Patents by Inventor Mitsutaka Akutsu

Mitsutaka Akutsu 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).

  • Manufacturing method of endless metal belt and manufacturing apparatus of endless metal belt
    Patent number: 7204005
    Abstract: A manufacturing method of an endless metal belt having metal rings built up and differing in circumference, includes the following steps of: a first circumference correction step of expanding each of the metal rings; and a second circumference correction step of expanding each of the metal rings after conducting a solution heat treatment to the expanded metal ring. In the manufacturing method, by executing the first circumference correction step and the second circumference correction step before and after the solution heat treatment, respectively, an expansion quantity for setting a circumference of each of the metal rings to become a predetermined length is attained.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: April 17, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ryuji Fukada, Mitsutaka Akutsu, Masayuki Suzuki, Masaaki Yoshitome
  • Manufacturing method of endless metal belt and manufacturing apparatus of endless metal belt
    Publication number: 20040103708
    Abstract: A manufacturing method of an endless metal belt having metal rings built up and differing in circumference, includes the following steps of: a first circumference correction step of expanding each of the metal rings; and a second circumference correction step of expanding each of the metal rings after conducting a solution heat treatment to the expanded metal ring. In the manufacturing method, by executing the first circumference correction step and the second circumference correction step before and after the solution heat treatment, respectively, an expansion quantity for setting a circumference of each of the metal rings to become a predetermined length is attained.
    Type: Application
    Filed: August 20, 2003
    Publication date: June 3, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Ryuji Fukada, Mitsutaka Akutsu, Masayuki Suzuki, Masaaki Yoshitome