公开(公告)号：US06249403B1

公开(公告)日：2001-06-19

申请号：US09080417

申请日：1998-05-18

申请人： Hiromitsu Tokisue ,  Sunao Yonekawa ,  Nobuyuki Ishii ,  Yasuyuki Horiguchi ,  Yoshishige Endo ,  Yasuhiro Yoshimura ,  Yutaka Ito ,  Osamu Narisawa ,  Hiroshi Yuyama ,  Youichi Inoue ,  Yukiko Ikeda

发明人： Hiromitsu Tokisue ,  Sunao Yonekawa ,  Nobuyuki Ishii ,  Yasuyuki Horiguchi ,  Yoshishige Endo ,  Yasuhiro Yoshimura ,  Yutaka Ito ,  Osamu Narisawa ,  Hiroshi Yuyama ,  Youichi Inoue ,  Yukiko Ikeda

IPC分类号： G11B5255

CPC分类号： G11B5/6005 ,  G11B5/10 ,  G11B5/40 ,  G11B5/41

摘要： A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.

公开(公告)号：US07061726B2

公开(公告)日：2006-06-13

申请号：US10667232

申请日：2003-09-18

申请人： Shigekazu Ohtomo ,  Hiroshi Fukui ,  Sunao Yonekawa ,  Yoji Maruyama ,  Tadayuki Iwakura

发明人： Shigekazu Ohtomo ,  Hiroshi Fukui ,  Sunao Yonekawa ,  Yoji Maruyama ,  Tadayuki Iwakura

IPC分类号： G11B5/127

CPC分类号： G11B5/3916

摘要： A magnetic material having a low coefficient of thermal expansion of 11.5×10−6/K or less is used for forming at least one of a lower shield or an upper shield. A laminated film comprising a layer of the magnetic material having a low coefficient of thermal expansion of 11.5×10−6/K or less, and an 80 wt % NiFe alloy layer, is used for forming at least one of the lower shield and the upper shield. Thus, the thin film magnetic head having reduced after-record noise and reduced thermal protrusion can be obtained.

摘要翻译： 使用具有11.5×10 -6 / K或更小的热膨胀系数低的磁性材料来形成下屏蔽或上屏蔽中的至少一个。 使用包含具有11.5×10 -6 / K以下的低热膨胀系数的磁性材料层和80重量％的NiFe合金层的层叠膜，以形成至少一个 的下屏蔽和上屏蔽。 因此，可以获得具有降低的记录后噪声和降低的热突起的薄膜磁头。