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:
May. 01, 1990
Filed:
Aug. 24, 1988
Applicant:
Inventors:
Assignee:
Olympus Optical Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73606 ;
Abstract
An ultrasonic microscope apparatus using cryogenic fluid as an ultarsonic propagating medium including a top loading space, in which specimen can be exchanged as the space kept airtight, and x-, y- and z-direction adjusting devices by means of which the relative position and the distance between the specimen and an acoustic lens can be adjusted under an airtight condition. The ultrasonic microscope apparatus also includes a vapor pressure adjusting device for adjusting the vapor pressure within a heat insulated vessel, in which the cryogenic fluid is contained, to prevent the cryogenic fluid from boiling.