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:
Oct. 18, 1983
Filed:
May. 03, 1982
Applicant:
Inventors:
Michio Hirohata, Inagi, JP;
Hideo Ikari, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 30 ; 354 59 ; 354230 ; 354234 ;
Abstract
A camera having an electromagnetically operated shutter in which a plurality of shutter blades arranged to perform a combined function as a diaphragm are driven to gradually open the shutter from a fully closed state in effecting an exposure. Prior to effecting an exposure, the shutter blades change from a deeply overlapped state to a shallowly overlapped state.
Hirohata, Michio. (1983). Camera with electromagnetically operated shutter (U.S. Patent No. 4410249). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4410249
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile