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:
Jul. 27, 2010
Filed:
Apr. 07, 2009
Applicants:
Toshiaki Kihara, Yokohama, JP;
Hiromi Nakanishi, Yokohama, JP;
Inventors:
Toshiaki Kihara, Yokohama, JP;
Hiromi Nakanishi, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-Shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 (2006.01); G02B 6/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bi-directional optical subassembly (BOSA) is disclosed. The BOSA of the present invention provides first and second optical devices, a WDM filter and the body that is configured to secure two optical devices and to install the WDM filter. The body has a cylindrical shape with a large bore, a small bore and a joint bore connecting two bores. The WDM filter is attached to the tapered surface of the joint bore.