Patents by Inventor Hideki Toyoshima

Hideki Toyoshima 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).

  • Publication number: 20200063702
    Abstract: Provided is a fuel distribution pipe connected to a fuel pipe and distributes and supplies fuel to a plurality of fuel injection devices, comprising: a tubular base material forming a body of the fuel distribution pipe; and a plating layer formed on a surface of the base material, wherein the base material includes a sealing surface formed on an inner peripheral surface thereof and comes into press-contact with the fuel pipe, and wherein a thickness of the plating layer on the sealing surface is thinner than that of the plating layer on an outer peripheral surface of the fuel distribution pipe.
    Type: Application
    Filed: July 14, 2016
    Publication date: February 27, 2020
    Inventors: Hideki TOYOSHIMA, Kento KANAYA
  • Patent number: 9004542
    Abstract: A pipe fastening structure includes an end member attached to an end part of a metal pipe, and a nut for fastening the end member attached to the metal pipe to a counterpart. In the pipe fastening structure, the end member has a first spherical part to be brought into contact with a sealing surface of the counterpart, a second spherical part formed integrally with the first spherical part so as to be in contact with a sliding surface formed in the nut, and a neck continuous with the second spherical part and having the shape of a straight pipe.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: April 14, 2015
    Assignee: Sanoh Kogyo Kabushiki Kaisha
    Inventors: Hideki Toyoshima, Kazumi Miura, Masakazu Nomura
  • Patent number: 8273195
    Abstract: A heat treatment method of heat-treating a steel tube provides the steel tube with satisfactory workability and high pressure resistance capable of coping with a recent increasing trend of pressure dealt with by a recent common rail type fuel injection system. A steel tube of a desired size is formed by drawing a material of a steel containing at least vanadium. The steel tube is processed for normalizing by holding the steel tube at high temperatures between 950 and 1000° C. for a predetermined time and slowly cooling the steel tube at a predetermined cooling rate. Then, the steel tube is processed for tempering by heating the steel tube at a temperature between 500 and 700° C. and cooling the steel tube to an ordinary temperature at an optional cooling rate.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: September 25, 2012
    Assignee: Sanoh Kogyo Kabushiki Kaisha
    Inventors: Hideki Toyoshima, Yukari Nakazawa
  • Publication number: 20110121563
    Abstract: A pipe fastening structure includes an end member 16 attached to an end part of a metal pipe 10, and a nut 12 for fastening the end member 16 attached to the metal pipe 10 to a counterpart 14. In the pipe fastening structure, the end member has a first spherical part 20 to be brought into contact with a sealing surface 27 of the counterpart 14, a second spherical part 21 formed integrally with the first spherical part 20 so as to be in contact with a sliding surface 25 formed in the nut 12, and a neck 18 continuous with the second spherical part 21 and having the shape of a straight pipe.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 26, 2011
    Inventors: Hideki Toyoshima, Kazumi Miura, Masakazu Nomura
  • Publication number: 20090032149
    Abstract: A heat treatment method of heat-treating a steel tube provides the steel tube with satisfactory workability and high pressure resistance capable of coping with a recent increasing trend of pressure dealt with by a recent common rail type fuel injection system. A steel tube of a desired size is formed by drawing a material of a steel containing at least vanadium. The steel tube is processed for normalizing by holding the steel tube at high temperatures between 950 and 1000° C. for a predetermined time and slowly cooling the steel tube at a predetermined cooling rate. Then, the steel tube is processed for tempering by heating the steel tube at a temperature between 500 and 700° C. and cooling the steel tube to an ordinary temperature at an optional cooling rate.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 5, 2009
    Inventors: Hideki Toyoshima, Yukari Nakazawa