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:
Sep. 19, 1989
Filed:
Apr. 10, 1987
Toshiaki Sukeda, Suzaka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magnetic bubble memory device comprising a chip assembly having a plurality of bubble memory chips superposed one above the other on a main printed wiring film. The lowermost chip is electrically connected to wiring patterns formed on the main printed wiring film. Each of the upper chip or chips is mounted on an auxiliary printed wiring film and electrically connected to the wiring patterns of the main printed wiring film through the auxiliary printed wiring film. The chip assembly is assembled with coils for generating a revolutional magnetic field disposed in a magnetic shield case in such a manner that the bubble memory chips are disposed inside of the coils and both ends of the main printed wiring film are disposed outside of the coils for outer connection.