Patent ID: 9302445
Filing Date: 2016-04-05
CPC Classification: B29C,B29K,B32B,B64C,Y02T,Y10T

Claim Text:
1. A fiber-reinforced composite material constructed by impregnating a laminated fiber bundle layer formed by laminating a plurality of fiber bundle layers formed of reinforced fibers with a matrix, wherein the reinforced fibers comprise +θ layers that are fiber bundle layers having a fiber orientation angle of +θ, −θ layers that are fiber bundle layers having a fiber orientation angle of −θ, and other fiber bundle layers, wherein, on each side of a standard surface, the number of +θ layers and the number of −θ layers are the same, wherein the order of laminating the fiber bundle layers is inversely symmetrical with respect to the standard surface, and wherein the number of other fiber bundle layers disposed between the +θ and −θ layers at either side of the standard surface is the same.