Patents by Inventor Hiromichi Tonami

Hiromichi Tonami 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).

  • Rotary cathode x-ray tube equipment
    Patent number: 5481585
    Abstract: The rotary cathode X-ray tube equipment of the present invention is constructed so as to permit radiation of X-ray from all directions with respect to the whole circumference of a subject, and is used for x-ray CT. The equipment of the invention is constructed to prevent an X-ray radiation window 40 of a low strength from being influenced by atmospheric deformations of a vacuum vessel 1 or by machining and assembling errors, for example by using a joint portion disposed between the X-ray radiation window and an inner ring and having both a surface perpendicular to a rotational axis of a rotary member and a cylindrical surface parallel to the rotational axis, a face seal formed on the surface of the joint portion perpendicular to the rotational axis, and an axial seal formed on the cylindrical surface of the joint portion parallel to the rotational axis.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: January 2, 1996
    Assignees: Shimadzu Corporation, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yutaro Kimura, Tetsuhiko Ikeshima, Hiromichi Tonami, Ikuo Konishi, Hiroshi Horikawa, Akihiro Daikoku, Shigekazu Sakabe, Masao Inoue, Akinori Yamasaki