Patents by Inventor Hisayoshi Harada

Hisayoshi Harada 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).

  • Method for making a hollow cast article by the lost wax method
    Patent number: 6119761
    Abstract: A method to suppress displacement of the core during casting when making hollow blades by applying the lost wax method using a core. A wax pattern is made which comprises a core and a layer of wax covering the core. Then at least one pin of the same material as the blade is inserted into the wax layer such that this pin engages the core and part of the pin projects from the outer surface of the wax layer, after which, with the portion of the pin which projects from the outer surface of the wax layer being held in a casting mold, the wax is removed, followed by casting.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: September 19, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takuma Anazawa, Hisayoshi Harada
  • Process for producing fiber molding for fiber-reinforced composite materials
    Patent number: 5198167
    Abstract: In a process for molding a fiber molding for a fiber-reinforced composite material with short fibers oriented in one direction, a slurry molding material having short fibers dispersed in a liquid is used, and pressing forces are applied to the molding material from two directions substantially perpendicular to each other within a mold, while removing the liquid.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: March 30, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tohru Ohta, Akimasa Daimaru, Masao Ichikawa, Hideyuki Fujishiro, Ryuichi Kubota, Takeyoshi Nakamura, Hisayoshi Harada, Hirotaka Koshitani, Tatsuya Suzuki, Teruo Hoshino