Patents by Inventor Daiju Yamada

Daiju Yamada 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).

  • Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core
    Patent number: 7165597
    Abstract: There is provided a method of cast molding a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to rationally form the chamfered portions at the rim portion, on the cylinder bore side, of the scavenging ports, the suction port and the exhaust port with high precision and high freedom in dimension and configuration without fluctuation in size and configuration of the chamfered portion.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 23, 2007
    Assignee: Kioritz Corporation
    Inventors: Daiju Yamada, Kazuo Sasaki, Fujihiro Matsuura
  • Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core
    Publication number: 20050133189
    Abstract: There is provided a method of cast molding a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to rationally form the chamfered portions at the rim portion, on the cylinder bore side, of the scavenging ports, the suction port and the exhaust port with high precision and high freedom in dimension and configuration without fluctuation in size and configuration of the chamfered portion.
    Type: Application
    Filed: June 2, 2004
    Publication date: June 23, 2005
    Applicant: Kioritz Corporation
    Inventors: Daiju Yamada, Kazuo Sasaki, Fujihiro Matsuura
  • Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core
    Patent number: 6899158
    Abstract: There is provided a method for manufacturing a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to manufacture the cylinder by a die casting method such as a high-pressure die casting method at low cost and in high accuracy.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: May 31, 2005
    Assignee: Kioritz Corporation
    Inventors: Fujihiro Matuura, Takio Shoji, Daiju Yamada
  • Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core
    Publication number: 20040089436
    Abstract: There is provided a method for manufacturing a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to manufacture the cylinder by a die casting method such as a high-pressure die casting method at low cost and in high accuracy.
    Type: Application
    Filed: September 3, 2003
    Publication date: May 13, 2004
    Applicant: Kioritz Corporation
    Inventors: Fujihiro Matuura, Takio Shoji, Daiju Yamada