Patents by Inventor Eigou Hashimoto

Eigou Hashimoto 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).

  • Soft metal and method of manufacturing the soft metal, and decorative part and method of manufacturing the decorative part
    Patent number: 6730415
    Abstract: A film is formed on the surface of a soft metal portion (2) such that the film contains phosphorus and either platinum or palladium, and further, at least one element having homogeneous solubility with platinum or palladium, with the content of the phosphorus being in a range of about 15 to 25 atomic %, or contains boron and iron with the content of the boron being in a range of from about 15 to 25 atomic %. Thus, a soft metal is made up by turning the film into a hard layer (3) made of an amorphous alloy.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: May 4, 2004
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yoshitsugu Shibuya, Eigou Hashimoto, Junji Satoh, Masahiro Satoh, Seiichi Hiroe
  • Soft metal and method of manufacturing the soft metal, and decorative part and method of manufacturing the decorative part
    Publication number: 20030008168
    Abstract: A film is formed on the surface of a soft metal portion (2) such that the film contains phosphorus and either platinum or palladium, and further, at least one element having homogeneous solubility with platinum or palladium, with the content of the phosphorus being in a range of about 15 to 25 atomic %, or contains boron and iron with the content of the boron being in a range of from about 15 to 25 atomic %. Thus, a soft metal is made up by turning the film into a hard layer (3) made of an amorphous alloy.
    Type: Application
    Filed: April 19, 2002
    Publication date: January 9, 2003
    Inventors: Yoshitsugu Shibuya, Eigou Hashimoto, Junji Satoh, Masahiro Satoh, Seiichi Hiroe