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:
Sep. 08, 1998
Filed:
Oct. 28, 1996
Applicant:
Inventor:
Kei Tomimatsu, Tokyo, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359656 ;
Abstract
Fluid-immersion microscope objective lenses are disclosed having simple construction, good image-plane flatness and ease of manufacturability. The most objectwise lens surface intended to contact the immersion fluid during use has a negative refractive power, and is preferably concave. The objective lens satisfies certain quantitative criteria.
Tomimatsu, Kei. (1998). Fluid immersion microscope objective lens (U.S. Patent No. 5805346). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5805346
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile