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:
Nov. 05, 2013
Filed:
May. 16, 2012
Applicants:
Hiroshi Takahashi, Chiba, JP;
Hideki Tanaka, Chiba, JP;
Inventors:
Hiroshi Takahashi, Chiba, JP;
Hideki Tanaka, Chiba, JP;
Assignee:
Seiko Precision Inc., Narashino-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 9/40 (2006.01); G03B 9/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A focal plane shutter includes: a board including an opening; an arm including: a rear end portion rotatably supported by the board; and a front end portion swingable in response to rotation of the rear and portion; blades coupled to the arm for opening and closing the opening; and a sensor arranged at a position opposite to the arm across the opening, and detecting a state of the blades.