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. 16, 1977
Filed:
Mar. 10, 1975
Applicant:
Inventors:
Sadami Tomita, Katsuta, JA;
Akio Chiba, Hitachi, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335297 ; 148 39 ;
Abstract
A pole piece for use in a magnet device and a method for manufacturing same, in which the structure of the pole piece for use in a magnet device used in an analyzing apparatus for analyzing such as nuclear magnetic resonance is varied in concentric fashion from the center towards the outer circumference of the pole piece. The pole piece is manufactured according to the die-forging, whereby the magnetic properties of the pole piece become hetrogenous in concentric fashion. The use of such a pole piece brings about a magnet device which is compact in size and which provides a strong and uniform magnetic field.