Patents by Inventor Shunya Hattori

Shunya Hattori 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).

  • Cylinder liner for insert casting and method for manufacturing thereof
    Patent number: 7383805
    Abstract: A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block material in a favorable manner. The cylinder liner satisfies the following requirements: (i) the height of projections 1P is in a range between 0.5 mm and 1.0 mm, inclusive; (ii) the number of the projections 1P is in a range between 5 and 60, inclusive, per cm2 on the outer circumferential surface; (iii) the area ratio of regions each encircled by a contour line of a height of 0.4 mm is in a range between 10% and 50%, inclusive; (iv) the area ratio of regions each encircled by a contour line of a height of 0.2 mm is in a range between 20% and 55%, inclusive; (v) the region each encircled by a contour line of the height of 0.4 are independent from each other; and (vi) the area of the regions each encircled by a contour line of the height of 0.4 mm is in a range between 0.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: June 10, 2008
    Assignees: Toyota Jidosha Kabushiki Kaisha, Teikoku Piston Ring Co., Ltd., Teipi Industry Co., Ltd.
    Inventors: Hirofumi Michioka, Toshihiro Takami, Kazunari Takenaka, Takashi Kurauchi, Norihiko Tomioka, Isao Katou, Hiroshi Muraki, Shunya Hattori, Giichiro Saito, Kiyoharu Oizumi
  • Cylinder Liner for Insert Casting and Method for Manufacturing Thereof
    Publication number: 20070240652
    Abstract: A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block material in a favorable manner. The cylinder liner satisfies the following requirements: (i) the height of projections 1P is in a range between 0.5 mm and 1.0 mm, inclusive; (ii) the number of the projections 1P is in a range between 5 and 60, inclusive, per cm2 on the outer circumferential surface; (iii) the area ratio of regions each encircled by a contour line of a height of 0.4 mm is in a range between 10% and 50%, inclusive; (iv) the area ratio of regions each encircled by a contour line of a height of 0.2 mm is in a range between 20% and 55%, inclusive; (v) the region each encircled by a contour line of the height of 0.4 are independent from each other; and (vi) the area of the regions each encircled by a contour line of the height of 0.4 mm is in a range between 0.
    Type: Application
    Filed: January 7, 2005
    Publication date: October 18, 2007
    Inventors: Hirofumi Michioka, Toshihiro Takami, Kazunari Takenaka, Takashi Kurauchi, Norihiko Tomioka, Isao Katou, Hiroshi Muraki, Shunya Hattori, Giichiro Saito, Kiyoharu Oizumi