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:
Aug. 30, 1983
Filed:
Feb. 09, 1982
Applicant:
Inventors:
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354246 ; 354245 ;
Abstract
A shutter blade for focal plane shutter, in which the blade thickness is made the thinnest possible by forming a plurality of recesses throughout the whole area, except for the connecting part of the blade with a drive mechanism and the outer peripheral edge of the blade. The recesses are in the regular polygonal shape such as hexagon, square, triangle, and so forth.