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:
Mar. 28, 2017
Filed:
Apr. 01, 2016
Applicant:
Seiko Precision Inc., Narashino-shi, JP;
Inventors:
Assignee:
SEIKO PRECISION INC., Narashino-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 9/40 (2006.01); G03B 9/42 (2006.01);
U.S. Cl.
CPC ...
G03B 9/40 (2013.01); G03B 9/42 (2013.01);
Abstract
A focal-plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive lever provided with a drive pin and swinging; a drive arm provided with an engagement hole engaged with the drive pin, swinging about a center same as a swing center of the drive lever, driving the shutter, and made of a synthetic resin; and a restriction portion defining a swinging range of the drive lever.