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. 25, 2011
Filed:
May. 02, 2008
Hiroki Yasuda, Mito, JP;
Kouki Hirano, Hitachigaku, JP;
Takami Ushiwata, Hitachi, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
An optical fiber mounting waveguide device and a method for fabricating the same, which provide a low optical connection loss and a high productivity. An under cladding layer (), a core (), and an over cladding layer () are sequentially formed on a substrate () to constitute an optical fiber mounting waveguide device (). An optical fiber mounting groove () for mounting an optical fiber () is formed on the optical fiber mounting waveguide device (). An end surface () of the over cladding layer () faces to the optical fiber mounting groove (). The core () and the under cladding layer () are projected toward the optical fiber mounting groove () with respect to the end surface () of the over cladding layer ().