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:
Sep. 27, 2011
Filed:
Dec. 06, 2006
Hiroshi Horigome, Mitaka, JP;
Masaaki Hirai, Joetsu, JP;
Hiroshi Tanaka, Joetsu, JP;
Jamco Corporation, Tokyo, JP;
Arisawa Mfg. Co., Ltd., Niigata, JP;
Abstract
A sandwich panel that has excellent practicality as an inner wall material used in aircraft, for example, whereby the abovementioned requirements of flexural strength, peel strength, and in-plane shear strength can be satisfied while having reduced weight. A sandwich panel in which a middle materialand a surface materialthat are each formed by laminating a plurality of fiber bodies are laminated from inside to outside on the upper and lower surfaces of a hollow columnar core, wherein the middle materialis composed of a set of unidirectional fiber bodieswhose fibers are aligned in one direction, fibers in a first unidirectional fiber bodyare in a direction that is substantially parallel to an edge of the sandwich panel, fibers in a second unidirectional fiber bodyare in a direction that is substantially orthogonal to an edge of the sandwich panel, and bonding layershaving a resin content ratio of 50% or higher are provided between the unidirectional fiber bodiesand between the hollow columnar coreand an inside unidirectional fiber body