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:
Dec. 05, 2023
Filed:
Nov. 14, 2020
Yazaki Energy System Corporation, Tokyo, JP;
Takuju Nakamura, Tokyo, JP;
YAZAKI ENERGY SYSTEM CORPORATION, Tokyo, JP;
Abstract
A multi-stage prism window includes: a first prism configured to condense light whose angle is equal to or larger than a first predetermined angle on a reflective member and retroreflect the light; a second prism configured to condense light whose angle is equal to or larger than a second predetermined angle on an endothermic member or a reflective member and use the light for indoor heating; and a liquid control mechanism configured to fill at least one of a first space and a second space with a liquid, the first space being in contact with the first prism from an indoor side, the second space being in contact with the second prism from the indoor side.