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:
Jun. 11, 2013
Filed:
Jan. 24, 2005
Naoki Shirakawa, Tsukuba, JP;
Naoki Shirakawa, Tsukuba, JP;
Abstract
In a helium 3 refrigerator-utilizing magnetic property measurement system (MPMS) which enables magnetization measurement to be effected until 0.3 K, a main pipe, to enable magnetization measurement to be infallibly effected even when the upper limit of a magnetic field the MPMS can induce is applied, includes an upper supporting tube positioned in the uppermost part and allowing a bellows to be connected to the lateral part thereof, a condensing tube supported in the lower part of the upper supporting tube, an outer tube fixed in the lower part of the condensing tube and adapted to form an outer wall of an insulated vacuum chamber, and a lower inner tube forming an inner wall of the insulated vacuum chamber. In each of the tubes, the lower inner tube is formed of titanium. As a result, a background signal can be decreased and the measurement can be infallibly effected until the upper limit of the magnetic field of the MPMS.