公开(公告)号：JP2001250204A

公开(公告)日：2001-09-14

申请号：JP2000060293

申请日：2000-03-06

Applicant: AKITA PREFECTURE

Inventor： ISE KAZUYUKI ,  YAMAKAWA KIYOSHI ,  HONDA NAOKI ,  OUCHI KAZUHIRO ,  NAKAMURA YOSHIHISA ,  SUGITA KEN ,  MURAOKA HIROAKI

IPC: G11B5/31

Abstract: PROBLEM TO BE SOLVED: To provide a thin film signal magnetic pole magnetic recording head high in recording sensitivity and easy in production. SOLUTION: This thin film signal magnetic pole magnetic recording head is composed of a main pole thin film 5 of a soft magnetic thin film, thin film conductor coils 3 and 6, and a magnetic core (2 and 7) of prescribed soft magnetic materials, and has at least two or more sets of the loop-shaped spiral shape thin film conductor coil whose number of turns >=1 ternes. These thin film conductors coils 3 and 6 are disposed on both sides in the film thickness direction of the main pole thin film 5, and are formed so that two thin film conductor coils 3 and 6 disposed between the both sides in the film thickness direction of the main pole thin film 5 are connected or not connected to each other at one place by using the conventional technique. Consequently, the front end of the main pole film is excited, then the magnetic head excellent in recording sensitivity and hardly being affected by the external magnetic field is easily manufactured.

公开(公告)号：JP2002288806A

公开(公告)日：2002-10-04

申请号：JP2001087401

申请日：2001-03-26

Applicant: AKITA PREFECTURE

Inventor： TAKAHASHI SHINGO ,  YAMAKAWA KIYOSHI ,  OUCHI KAZUHIRO ,  NAKAMURA YOSHIHISA ,  MURAOKA HIROAKI

IPC: G11B5/127 ,  G11B5/187

Abstract: PROBLEM TO BE SOLVED: To provide a single magnetic head for vertical magnetic recording with the shape of a main magnetic material capable of not only suppressing the decrease of a recording magnetic field at the time of a narrow track but also producing a magnetic field more than the equivalent of the saturation magnetic flux density of the main magnetic material. SOLUTION: A main magnetic pole point 3a is for example provided with the first point 1a deciding track width comprised of square column shape which is the cross section of square or trapezoid with limited height (length) and the second point 2a with which the size of cross-sectional area is longer and larger than the first point 1a in more than three directions of the four directions of the track width direction and the head running direction to comprise a single magnetic pole consisting of two steps to realize a single magnetic head 10 for vertical magnetic recording capable of obtaining more higher magnetic filed by performing as optimizing the shape of the main magnetic pole point side.

公开(公告)号：JP2005100520A

公开(公告)日：2005-04-14

申请号：JP2003332010

申请日：2003-09-24

Applicant: Akita Prefecture ,  秋田県

Inventor： YAMAKAWA KIYOSHI ,  ISE KAZUYUKI ,  HONDA NAOKI ,  OUCHI KAZUHIRO ,  NAKAMURA YOSHIHISA ,  MURAOKA HIROAKI ,  AOI MOTOI

IPC: G11B5/31

Abstract: PROBLEM TO BE SOLVED: To provide a thin-film single magnetic pole magnetic head which can make a recorded magnetic field sharp and secure sufficient recording magnetic field intensity. SOLUTION: The thin-film single magnetic pole magnetic head 10 is formed by laminating on a substrate 1 a main magnetic pole 4 formed in a thin film form by a soft magnetic body, a coil 3 formed in a thin film form by a conductive body and an auxiliary yoke 5 formed in a thin film form by the soft magnetic body via an insulating layer 6. At least a part of the coil 3 is arranged on the downstream side of the main magnetic pole 4 in the rotational direction of a magnetic disk, and the auxiliary york 5 is arranged on the further downstream side to form the magnetic head 10. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种薄膜单磁极磁头，其可以使记录的磁场清晰并且确保足够的记录磁场强度。 解决方案：薄膜单磁极磁头10通过在基板1上层叠由软磁体形成的薄膜形式的主磁极4，以薄膜形式形成的线圈3由 由软磁体通过绝缘层6以薄膜形式形成的导电体和辅助磁轭5.线圈3的至少一部分沿着主磁极4的旋转方向配置在主磁极4的下游侧 一个磁盘和一个辅助键5设置在更下游侧，以形成磁头10.版权所有（C）2005，JPO＆NCIPI