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:
Oct. 15, 2013
Filed:
Aug. 25, 2008
Nobuo Takeda, Kashiwa, JP;
Yasuo Hirose, Kakamigahara, JP;
Nobuo Takeda, Kashiwa, JP;
Yasuo Hirose, Kakamigahara, JP;
The University of Tokyo, Tokyo, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Abstract
A surface layer formed of a composite material is stacked on the surface of a core layer formed of a foam synthetic resin material, and an arrester portion is provided in an interface region between the surface layer and the core layer to prevent the progression of delamination between the surface layer and the core layer. Optical fibers with grating portions are embedded inside the arrester and along the surface layer, and the spectra of reflected light from the optical fibers are compared to detect the occurrence position of a crack between the surface layer and the core layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile