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. 10, 2012
Filed:
Feb. 09, 2009
Applicants:
Akio Konishi, Hyogo, JP;
Koichiro Hirabayashi, Osaka, JP;
Inventors:
Akio Konishi, Hyogo, JP;
Koichiro Hirabayashi, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01); G03B 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A barrier unit, of which the cap edge is not easily deformed even under some external force, is provided. The barrier unit includes: a base, which defines a first window; a cap, which defines a second window and which is arranged so that the second window faces the first window; and at least one blade, which is arranged between the base and the cap so as to open or close with respect to the first and second windows. A surface of the cap that is opposed to the at least one blade has a notched portion around the second window.