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:
Jun. 21, 1983
Filed:
Jul. 10, 1981
Applicant:
Inventor:
Takashi Maruyama, Suwa, JP;
Assignee:
Chinon Kabushiki Kaisha, Nagano, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 25 ; 352140 ;
Abstract
A focusing control device for a cine camera operates to displace the lens so that the lens is automatically and continuously focused on an object. The focusing control device is provided with circuitry to prevent displacement of the lens caused by the detection of an infinite focus condition unless the lens is out of the focusing tolerance range and the lens is in a front focusing condition.
Quick Actions:
Maruyama, Takashi. (1983). Focusing control device (U.S. Patent No. 4389106). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4389106
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile