Magnetic head with rectangular-shaped planar spiral coil and...

Details Magnetic head with rectangular-shaped planar spiral coil and... Magnetic head with rectangular-shaped planar spiral coil and...

2003-06-25

2008-11-25

Renner, Craig A (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Coil

C360S125500, C360S125540, C360S128000

Reexamination Certificate

active

07457079

ABSTRACT:
A thin film magnetic recording head comprises a substrate, a first magnetic core formed on the substrate, a second magnetic core having the front end face with a magnetic gap with respect to the front end face of the first magnetic core, and a coil for developing magnetic flux between the front end portions of the magnetic cores. A width of the second magnetic core at the front end portion thereof is chosen to be smaller than that of the first magnetic core. The second magnetic core is at a leading position relative to the second magnetic core in a traveling direction on a recording medium. In such configuration, it is possible to reduce side erase due to recording magnetic flux fringing and to achieve high density of magnetic recording while maintaining the conventional fabrication steps for the thin film magnetic recording head, thereby avoiding the problem in the fabrication.

REFERENCES:
patent: 3610839 (1971-10-01), Sand
patent: 3701859 (1972-10-01), Braun et al.
patent: 3806902 (1974-04-01), Drees et al.
patent: 4191983 (1980-03-01), Gibson
patent: 4293884 (1981-10-01), Schiller
patent: 4799118 (1989-01-01), Yamada et al.
patent: 4947541 (1990-08-01), Toyoda et al.
patent: 5173826 (1992-12-01), Bischoff
patent: 5349745 (1994-09-01), Kawabe et al.
patent: 5812350 (1998-09-01), Chen et al.
patent: 5822161 (1998-10-01), Yagyu
patent: 5831801 (1998-11-01), Shouji et al.
patent: 5850325 (1998-12-01), Miyauchi et al.
patent: 5973891 (1999-10-01), Neumann
patent: 6125018 (2000-09-01), Takagishi et al.
patent: 6259585 (2001-07-01), Sasaki et al.
patent: 6296776 (2001-10-01), Sasaki
patent: 6473273 (2002-10-01), Kikuiri
patent: 6504687 (2003-01-01), Miyatake et al.
patent: 6646830 (2003-11-01), Biskeborn et al.
patent: 6683760 (2004-01-01), Kikuiri
patent: 6697231 (2004-02-01), Kikuiri
patent: 6760198 (2004-07-01), Jarratt
patent: 6801379 (2004-10-01), Ozue et al.
patent: 6965494 (2005-11-01), Campbell et al.
patent: 2001/0028539 (2001-10-01), Kikuiri
patent: 2002/0024764 (2002-02-01), Takeya
patent: 2002/0101683 (2002-08-01), Katakura
patent: 2002/0176214 (2002-11-01), Shukh et al.
patent: 3806171 (1989-09-01), None
patent: 60059513 (1985-04-01), None
patent: 63108515 (1988-05-01), None
patent: 63311615 (1988-12-01), None
patent: 04195809 (1992-07-01), None
patent: 06012622 (1994-01-01), None
patent: 07-093711 (1995-04-01), None
patent: 11213333 (1999-08-01), None
patent: 11-306513 (1999-11-01), None
patent: 2000-123319 (2000-04-01), None
patent: 2001034906 (2001-02-01), None
patent: 2001273606 (2001-10-01), None
patent: 2002151332 (2002-05-01), None

Affiliated with

Also associated with

Rating

Magnetic head with rectangular-shaped planar spiral coil and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic head with rectangular-shaped planar spiral coil and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head with rectangular-shaped planar spiral coil and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4023656