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:
Oct. 15, 2002
Filed:
Nov. 07, 2000
Hiroaki Honjo, Tokyo, JP;
Nobuyuki Ishiwata, Tokyo, JP;
Tsutomu Ishi, Tokyo, JP;
Mikiko Saito, Tokyo, JP;
Shinsaku Saito, Tokyo, JP;
Tamaki Toba, Tokyo, JP;
Yoshihiro Nonaka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Disclosed is a magnetic heads suitable for high density recording which comprises an ID head where a CoNiFe film or a CoNiFeX film is formed by a physical vapor deposition method and further a plated film of CoNiFe etc. is formed while avoiding vanishment of a seed layer. The ID head shows high reliability and high production efficiency. The upper magnetic pole of the ID head is composed of a laminated layers of a first magnetic layer of a CoNiFe film or a CoNiFeX film which is formed by a physical vapor deposition method, a second magnetic layer of NiFe layer composing a seed layer laminated thereon, and a third magnetic layer of CoNiFe plated film etc. further laminated on the second layer.