Title:
蓄冷材,その製造方法およびその蓄冷材を用いた冷凍機
Document Type and Number:
Japanese Patent JP5010071
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cold storage material having high strength and nearly free from the risk of being pulverized into fine particles and excellent in thermal shock resistance and durability and capable of exhibiting a significant refrigerating performance at a low temperature region, a method for manufacturing the cold storage material and a cold storage type refrigerator, etc., using the cold storage material. SOLUTION: This cold storage material comprises a number of magnetic particles mainly composed of oxide, wherein an average value of equivalent circle diameters of crystal grains constituting the magnetic particles is 0.3-20 μm. It is preferable that an area ratio of the crystal grains each having an equivalent circle diameter of 50 μm or more is 10% or less with respect to whole crystal grains constituting the magnetic particle.
Inventors:
Masami Okamura
Tomohisa Arai
Tomohisa Arai
Application Number:
JP2001195413A
Publication Date:
August 29, 2012
Filing Date:
June 27, 2001
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
C09K5/08; F25B9/00; C01B33/00; C01F17/00; C01G49/00; H01F1/01; H01F1/11
Domestic Patent References:
| JP62128921A | ||||
| JP2001354474A | ||||
| JP2001262134A |
Foreign References:
| WO1999020956A1 |
Attorney, Agent or Firm:
Patent business corporation Tokyo International Patent Office