JPS5619513A - Magnetic head for vertical recording - Google Patents

Magnetic head for vertical recording

Info

Publication number
JPS5619513A
JPS5619513A JP9520879A JP9520879A JPS5619513A JP S5619513 A JPS5619513 A JP S5619513A JP 9520879 A JP9520879 A JP 9520879A JP 9520879 A JP9520879 A JP 9520879A JP S5619513 A JPS5619513 A JP S5619513A
Authority
JP
Japan
Prior art keywords
magnetic
tip
recording
winding
magnetic pole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9520879A
Other languages
Japanese (ja)
Other versions
JPS6221174B2 (en
Inventor
Yoshiji Nakagawa
Ryuji Sugita
Norio Miyatake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9520879A priority Critical patent/JPS5619513A/en
Publication of JPS5619513A publication Critical patent/JPS5619513A/en
Publication of JPS6221174B2 publication Critical patent/JPS6221174B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier

Abstract

PURPOSE:To produce the recording magnetic field with high efficiency, by providing the metallic magnetic layer in which the cross-sectional area is decreased to the tip, with the thick plate core side surface of the recording magnetic pole and giving winding on this magnetic pole. CONSTITUTION:On the surface of the thick plate core 12 at the magnetic pole side for recording of the magnetic head, the metallic magnetic substance layer 13 having high saturated magnetic flux density is formed with vapor deposition. This metallic magnetic substance layer 13 has a given thickness and small width to the tip, and the shrinked shape of the tip A is selectively formed according to the thickness (t) and the length D to obtain maximum magnetic flux density at the tip A. Winding is made on a part of the core 12 and the magnetic substance layer 13. Thus, the magnetomotive force caused from the winding can be used for the magnetization of the recording magnetic pole for recording with good efficiency, and without starting the saturation at the winding, the magnetic pole tip can effectively be magnetized to the saturated magnetic flux density of the raw material to strengthen the recorded magnetic field.
JP9520879A 1979-07-25 1979-07-25 Magnetic head for vertical recording Granted JPS5619513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9520879A JPS5619513A (en) 1979-07-25 1979-07-25 Magnetic head for vertical recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9520879A JPS5619513A (en) 1979-07-25 1979-07-25 Magnetic head for vertical recording

Publications (2)

Publication Number Publication Date
JPS5619513A true JPS5619513A (en) 1981-02-24
JPS6221174B2 JPS6221174B2 (en) 1987-05-11

Family

ID=14131323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9520879A Granted JPS5619513A (en) 1979-07-25 1979-07-25 Magnetic head for vertical recording

Country Status (1)

Country Link
JP (1) JPS5619513A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687217A (en) * 1979-12-14 1981-07-15 Toshiba Corp Vertical magnetization type magnetic head and its manufacture
JPS57162112A (en) * 1981-03-30 1982-10-05 Nec Corp Magnetic head for vertical magnetic recording and reproduction
EP0071489A2 (en) * 1981-07-30 1983-02-09 Fujitsu Limited A perpendicular magnetic recording and reproducing head
JPS59178610A (en) * 1983-03-29 1984-10-09 Fujitsu Ltd Thin film head for vertical magnetic recording
JPS6057511A (en) * 1983-09-07 1985-04-03 Hitachi Ltd Magnetic head
JPS60109018A (en) * 1983-11-18 1985-06-14 Nec Home Electronics Ltd Vertical magnetic recording and reproducing device
EP0359879A1 (en) * 1987-07-31 1990-03-28 Seagate Technology, Inc. Magnetic head for perpendicular magnetic recording system
US5555482A (en) * 1994-07-07 1996-09-10 Maxtor Corporation Etched erase band feature for thin film recording heads
US5854727A (en) * 1994-09-30 1998-12-29 Kabushiki Kaisha Toshiba Magnetic head and magnetic disk drive
US7245454B2 (en) 2003-05-15 2007-07-17 Tdk Corporation Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687217A (en) * 1979-12-14 1981-07-15 Toshiba Corp Vertical magnetization type magnetic head and its manufacture
JPS6313245B2 (en) * 1979-12-14 1988-03-24 Tokyo Shibaura Electric Co
JPS57162112A (en) * 1981-03-30 1982-10-05 Nec Corp Magnetic head for vertical magnetic recording and reproduction
JPH0237603B2 (en) * 1981-03-30 1990-08-27 Nippon Electric Co
US4546398A (en) * 1981-07-03 1985-10-08 Fujitsu Limited Perpendicular magnetic recording and reproducing head
EP0071489A2 (en) * 1981-07-30 1983-02-09 Fujitsu Limited A perpendicular magnetic recording and reproducing head
JPS59178610A (en) * 1983-03-29 1984-10-09 Fujitsu Ltd Thin film head for vertical magnetic recording
JPS6057511A (en) * 1983-09-07 1985-04-03 Hitachi Ltd Magnetic head
JPS60109018A (en) * 1983-11-18 1985-06-14 Nec Home Electronics Ltd Vertical magnetic recording and reproducing device
JPH0140402B2 (en) * 1983-11-18 1989-08-29 Nippon Denki Hoomu Erekutoronikusu Kk
EP0359879A1 (en) * 1987-07-31 1990-03-28 Seagate Technology, Inc. Magnetic head for perpendicular magnetic recording system
US5555482A (en) * 1994-07-07 1996-09-10 Maxtor Corporation Etched erase band feature for thin film recording heads
US5854727A (en) * 1994-09-30 1998-12-29 Kabushiki Kaisha Toshiba Magnetic head and magnetic disk drive
US5995341A (en) * 1994-09-30 1999-11-30 Kabushiki Kaisha Toshiba Magnetic disk drive recording a signal with a skew angle
US7245454B2 (en) 2003-05-15 2007-07-17 Tdk Corporation Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive

Also Published As

Publication number Publication date
JPS6221174B2 (en) 1987-05-11

Similar Documents

Publication Publication Date Title
JPS5415126A (en) Dc to dc converter
JPS5619513A (en) Magnetic head for vertical recording
JPS5687218A (en) Vertical magnetization type magnetic head
JPS5496013A (en) Compound magnetic head
JPS563422A (en) Magnetic head
JPS6430016A (en) Thin film magnetic head having magnetoresistance element
JPS5558824A (en) Magnetic head
JPS56163517A (en) Vertical magnetization recording head
JPS51140708A (en) Magnetic head
JPS5577024A (en) Magnetic head
JPS5687220A (en) Vertical magnetization type magnetic head
JPS5577025A (en) Erasing head
JPS54114220A (en) Magnetic head for plural channels
JPS55117724A (en) Magnetic head
JPS5325409A (en) Magnetic head
JPS5680817A (en) Magnetic head
JPS57127917A (en) Magnetic head device
JPS55135325A (en) Vertically-magnetized type magnetic head
JPS5788513A (en) Vertical magnetizing type magnetic head
JPS57203209A (en) Magnetic recorder
JPS55139624A (en) Vertical magnetization type magnetic head
JPS6423407A (en) Superconductive magnetic head
JPS5564626A (en) Compound magnetic head
JPS5548823A (en) Magnetic head for erase
JPS6448216A (en) Magnetic head