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:
Apr. 20, 1976
Filed:
Dec. 10, 1974
Applicant:
Inventors:
Masahiro Komatsu, Inagi, JA;
Sakan Takai, Kawasaki, JA;
Harumi Maegawa, Kawasaki, JA;
Masaki Takasu, Kawasaki, JA;
Assignee:
Fujitsu Ltd., Kawasaki, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
3401 / ;
Abstract
Out-of-phase currents of trapezoidal or triangular waveshape are supplied to the drive coils of a magnetic bubble device. The induced magnetic field of the magnetic bubble device rotates at a uniform constant speed and has a linearly varying locus.