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:
Dec. 03, 1985
Filed:
May. 05, 1982
Ryo Imura, Sayama, JP;
Tadashi Ikeda, Kodaira, JP;
Teruaki Takeuchi, Kokubunji, JP;
Hiroshi Umezaki, Mitaka, JP;
Ryo Suzuki, Kodaira, JP;
Yutaka Sugita, Tokorozawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method of fabricating a magnetic bubble memory device is disclosed in which ions are implanted in a desired portion of a surface region in a magnetic bubble film for magnetic bubbles to form a strain layer having a strain of about 1% to about 2.5%, a film is provided on the magnetic bubble film so as to cover the magnetic bubble film with the film and then the magnetic bubble film is annealed under predetermined conditions, thereby providing a practical magnetic bubble memory device having a large bias margin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile