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. 28, 2020
Filed:
Apr. 21, 2017
Yokogawa Electric Corporation, Tokyo, JP;
Tsuyoshi Nakamura, Tokyo, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
An objective lens unit for a liquid immersion microscope includes: a first liquid passage in a pipe shape including an opening disposed at a lens surface end as a lens surface of a lens at a closest side to an observing object, the first liquid passage being coupled to an outside of the objective lens unit, and a second liquid passage in a pipe shape disposed independently from the first liquid passage, the second liquid passage including an opening disposed at a position adjacent to the opening of the first liquid passage on the lens surface end, the second liquid passage being coupled to the outside of the objective lens unit.