Patents by Inventor Youji ASAKURA

Youji ASAKURA 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).

  • Cam shaft for engine and method for manufacturing same
    Patent number: 10619523
    Abstract: This exhaust cam shaft (2) is provided with a shaft part (5) and cam parts (6 to 13) provided on the outer circumference of the shaft part (5). The shaft part (5) has holes (16, 17, 19) opened at predetermined positions on the outer circumferential surface of the shaft part (5). The holes (16, 17, 19) are formed so as to be gradually tapered from an outside of the shaft part (5) toward a center of the shaft part (5) in a radial direction.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 14, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Youji Asakura, Hideo Tone, Akira Asai, Michihiro Kanamura, Shoichi Furuya
  • CAM SHAFT FOR ENGINE AND METHOD FOR MANUFACTURING SAME
    Publication number: 20180347411
    Abstract: This exhaust cam shaft (2) is provided with a shaft part (5) and cam parts (6 to 13) provided on the outer circumference of the shaft part (5). The shaft part (5) has holes (16, 17, 19) opened at predetermined positions on the outer circumferential surface of the shaft part (5). The holes (16, 17, 19) are formed so as to be gradually tapered from an outside of the shaft part (5) toward a center of the shaft part (5) in a radial direction.
    Type: Application
    Filed: March 13, 2017
    Publication date: December 6, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Youji ASAKURA, Hideo TONE, Akira ASAI, Michihiro KANAMURA, Shoichi FURUYA