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:
Apr. 12, 2011
Filed:
Apr. 27, 2009
Akira Fujii, Kanagawa, JP;
Toshihiko Suzuki, Kanagawa, JP;
Keishi Shimizu, Kanagawa, JP;
Shigemi Ohtsu, Kanagawa, JP;
Kazutoshi Yatsuda, Kanagawa, JP;
Masahiro Igusa, Kanagawa, JP;
Akira Fujii, Kanagawa, JP;
Toshihiko Suzuki, Kanagawa, JP;
Keishi Shimizu, Kanagawa, JP;
Shigemi Ohtsu, Kanagawa, JP;
Kazutoshi Yatsuda, Kanagawa, JP;
Masahiro Igusa, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An optical waveguide comprising: a waveguide core through which light propagates; a cladding that surrounds the waveguide core and has a refractive index that is less than the refractive index of the waveguide core; a metal layer that is formed on a surface of at least one end of the optical waveguide in a longitudinal direction, the surface being inclined so as not to be perpendicular to the longitudinal direction; and a channel that is formed at a portion of an outer surface of the cladding, the outer surface forming an acute angle with the inclined surface, and the channel being positioned such that light entering the optical waveguide adjacent the channel is reflected by the inclined surface into the waveguide core.