Patents by Inventor Saji Yoshiro

Saji Yoshiro 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).

  • Magnetic refrigerator
    Patent number: 5156003
    Abstract: A magnetic refrigerator comprising a magnet generating a high-intensity magnetic field, a tube-shaped superconducting magnetic shield, a magnetic working material and a reciprocating means for reciprocatively moving the superconducting magnetic shield or the magnetic working material, the magnetic refrigerator being arranged such that a magnetization process wherein the magnetic working material is magnetized in the high-intensity magnetic field and a demagnetization process wherein the magnetic working material is demagnetized by being accommodated in the hollow section of the magnetic shield are repeated by the reciprocating means so that the magnetic working material generates coldness.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: October 20, 1992
    Assignee: Koatsu Gas Kogyo Co., Ltd.
    Inventors: Saji Yoshiro, Hiroaki Toda, Tetsuo Takagi, Takao Sugioka, Masaru Inoue, Kohei Otani, Manabu Sato