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. 15, 2011
Filed:
Dec. 14, 2009
Applicant:
Hisashi Kawamoto, Chiba, JP;
Inventor:
Hisashi Kawamoto, Chiba, JP;
Assignee:
Seiko Precision Inc., Narashino-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 9/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A blade drive device includes a shutter unit. The shutter unit includes: a blade swingably supported; and a plurality of boards defining a blade chamber, each having an opening opened and closed by the blade, and an actuator serving as a drive force of the blade and including a rotor having a rotary shaft. The rotary shaft penetrates to the blade chamber. An elastic member is housed in the blade chamber, and urges the rotary shaft in a thrust direction.