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. 05, 2021
Filed:
May. 12, 2016
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Toshio Shinoki, Chiyoda-ku, JP;
Satoshi Nakatsu, Chiyoda-ku, JP;
Hitoshi Maruyama, Chiyoda-ku, JP;
Yoshikazu Yaji, Chiyoda-ku, JP;
Shunkei Suzuki, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A vacuum heat insulator which can prevent lowering of a heat insulation performance in its thickness direction, while ensuring a sufficient strength, is provided. The vacuum heat insulator reduces heat transfer in the thickness direction of a core from one surface side of the core to the other surface side thereof. The core includes a first fiber layer and a second fiber layer. The first fiber layer includes short fibers layered in the thickness direction. The second fiber layer includes long fibers layered in the thickness direction, and thickness fiber bundles which extend in the thickness direction, and which bind the long fibers. The long fibers are longer than the short fibers.