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:
Mar. 14, 2000
Filed:
Mar. 08, 1999
Applicant:
Inventors:
Eiji Umetsu, Niigata-ken, JP;
Makoto Nakazawa, Niigata-ken, JP;
Yoshito Sasaki, Niigata-ken, JP;
Takashi Hatanai, Niigata-ken, JP;
Akihiro Makino, Niigata-ken, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
2041922 ; 20419211 ; 20419215 ; 20419222 ; 20419212 ; 428692 ; 4286 / ; 427569 ; 427576 ; 427571 ; 427580 ; 427599 ;
Abstract
In a magnetic film forming method, a plurality of chips formed of Fe.sub.3 O.sub.4 and a plurality of chips formed of HfO.sub.2 are disposed on a target formed of Fe. The composition ratio of a Fe--Hf--O film can be set within a proper range by adjusting the numbers of the up said two kind of chips.