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. 25, 2007
Filed:
Apr. 01, 2005
Gen Oikawa, Odawara, JP;
Shuichi Kojima, Hiratsuka, JP;
Harunobu Saito, Chigasaki, JP;
Noriyuki Saiki, Odawara, JP;
Masayasu Kagawa, Hiratsuka, JP;
Akira Kondo, Naka-gun Ooiso, JP;
Kenji Ishikake, Odawara, JP;
Hiromi Shiina, Taga-gun Jyuo, JP;
Gen Oikawa, Odawara, JP;
Shuichi Kojima, Hiratsuka, JP;
Harunobu Saito, Chigasaki, JP;
Noriyuki Saiki, Odawara, JP;
Masayasu Kagawa, Hiratsuka, JP;
Akira Kondo, Naka-gun Ooiso, JP;
Kenji Ishikake, Odawara, JP;
Hiromi Shiina, Taga-gun Jyuo, JP;
Hitachi Global Storage Technologies Japan, Ltd., Kanagawa-ken, JP;
Abstract
In formation of an upper shield of a magnetic thin film head by electroplating, a current density of electroplating is regulated stepwise with time. Thus, in the upper shield formation, a film composition and magnetic characteristic with respect to the direction of film thickness can be controlled precisely, making it possible to provide a magnetic thin film head featuring significantly reduced noise-after-write and output fluctuation.