The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1997
Filed:
Sep. 15, 1994
Akiko Saito, Kawasaki, JP;
Masashi Sahashi, Yokohama, JP;
Yoichi Tokai, Yokohama, JP;
Akihiko Tsutai, Kawasaki, JP;
Masami Okamura, Yokohama, JP;
Yukiko Nishiyama, Kawaguchi, JP;
Michihiko Inaba, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The regenerating material according to the present invention comprises two alloy phases which differ in a content of rare earth elements. Of these alloy phases, a dominant phase in the regenerating material is defined as a main phase, and the other phase is defined as a sub-phase. A plurality of particles, each of which consists of a granular main phase and a sub-phase present on the surface of the main phase, gathers to form an aggregate. Otherwise, a sub-phase present in a main phase in the form of fiber. The refrigerator according to the present invention comprises a regenerator charged with above-mentioned regenerating material, a coolant gas and an expansion means for expanding the coolant gas.