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:
Aug. 27, 1991
Filed:
Jan. 02, 1990
Yasuhiro Omura, Hachioji, JP;
Yasuo Sasaki, Hachioji, JP;
Mitsugu Sakai, Hachioji, JP;
Koichi Karaki, Hino, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An ultrasonic microscope includes a container for containing a liquid nitrogen, and an acoustic lens housed in the container to emit an ultrasonic beam onto the view face of a sample. A sleeve is located above the container, which has a gas-tight chamber therein communicated with the container and a sample inserting opening formed in the periphery thereof. The sample inserting opening is selectively closed and opened by a gate valve. A sample rod is provided with a sample on its lower end, and may be freely movable up and down in the gas-tight chamber to a position where the sample in the container is scanned and to another position adjacent to the sample inserting opening where the sample is exchanged with a new one.