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:
Jul. 18, 1978
Filed:
Feb. 24, 1977
Applicant:
Inventors:
Toshimichi Koizumi, Sagamihara, JP;
Miwako Unami, Yokohama, JP;
Assignee:
Olympus Optical Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350224 ; 3501 / ;
Abstract
A medium magnification objective for video disks comprising four single lenses for which the number of lenses constituting the objective is small, the working distance is large and flatness of image is high.
Koizumi, Toshimichi. (1978). Medium magnification objective for video disks (U.S. Patent No. 4101204). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4101204
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile