JPH0424764B2 - - Google Patents

Info

Publication number
JPH0424764B2
JPH0424764B2 JP56189330A JP18933081A JPH0424764B2 JP H0424764 B2 JPH0424764 B2 JP H0424764B2 JP 56189330 A JP56189330 A JP 56189330A JP 18933081 A JP18933081 A JP 18933081A JP H0424764 B2 JPH0424764 B2 JP H0424764B2
Authority
JP
Japan
Prior art keywords
magnetic recording
magnetic
recording medium
plane
ferrite
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.)
Expired
Application number
JP56189330A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5891517A (ja
Inventor
Hideo Fujiwara
Moichi Ootomo
Kiminari Shinagawa
Takayuki Kumasaka
Takeo Yamashita
Sanehiro Kudo
Teizo Tamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56189330A priority Critical patent/JPS5891517A/ja
Priority to US06/444,224 priority patent/US4571652A/en
Priority to GB08233688A priority patent/GB2114357B/en
Priority to DE3244160A priority patent/DE3244160C2/de
Publication of JPS5891517A publication Critical patent/JPS5891517A/ja
Publication of JPH0424764B2 publication Critical patent/JPH0424764B2/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
    • 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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP56189330A 1981-11-27 1981-11-27 磁気記録再生装置 Granted JPS5891517A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56189330A JPS5891517A (ja) 1981-11-27 1981-11-27 磁気記録再生装置
US06/444,224 US4571652A (en) 1981-11-27 1982-11-24 Magnetic recording and reproducing apparatus
GB08233688A GB2114357B (en) 1981-11-27 1982-11-25 Magnetic recording and reproducing apparatus
DE3244160A DE3244160C2 (de) 1981-11-27 1982-11-29 Magnetisches Aufzeichnungs- und Wiedergabegerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56189330A JPS5891517A (ja) 1981-11-27 1981-11-27 磁気記録再生装置

Publications (2)

Publication Number Publication Date
JPS5891517A JPS5891517A (ja) 1983-05-31
JPH0424764B2 true JPH0424764B2 (US20100154141A1-20100624-C00001.png) 1992-04-28

Family

ID=16239537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56189330A Granted JPS5891517A (ja) 1981-11-27 1981-11-27 磁気記録再生装置

Country Status (4)

Country Link
US (1) US4571652A (US20100154141A1-20100624-C00001.png)
JP (1) JPS5891517A (US20100154141A1-20100624-C00001.png)
DE (1) DE3244160C2 (US20100154141A1-20100624-C00001.png)
GB (1) GB2114357B (US20100154141A1-20100624-C00001.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60138708A (ja) * 1983-12-27 1985-07-23 Ngk Insulators Ltd 磁気ヘッド用コアの製造法
GB2154359A (en) * 1984-02-17 1985-09-04 Hitachi Metals Ltd Magnetic head
JPS60224109A (ja) * 1984-04-20 1985-11-08 Hitachi Ltd 複合型磁気ヘツドを用いた磁気記録再生装置
EP0314172B1 (en) * 1987-10-29 1994-03-09 Fuji Photo Film Co., Ltd. Film magnetic head
JP2619017B2 (ja) * 1988-10-11 1997-06-11 日立マクセル株式会社 複合磁気ヘッド
JPH05197903A (ja) * 1991-10-28 1993-08-06 Canon Inc 光磁気記録装置
KR20000064980A (ko) * 1997-02-24 2000-11-06 요트.게.아. 롤페즈 최적 결정배향을 갖는 자기 헤드를 구비한 기록 및/또는 재생장치, 및 최적 결정배향을 갖는 자기 헤드
KR100460131B1 (ko) * 2002-05-08 2004-12-03 한국과학기술연구원 초 고밀도 자기기록용 플래너형 기록헤드의 특성 최적화방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810245A (en) * 1971-06-28 1974-05-07 Sony Corp Single crystal ferrite magnetic head
NL175473C (nl) * 1972-06-20 1984-11-01 Matsushita Electric Ind Co Ltd Ferrietkern voor een magneetkop en werkwijze voor het vervaardigen van een ferrietkern.
JPS5343560A (en) * 1976-10-01 1978-04-19 Central Glass Co Ltd Load detecting apparatus for quantitative conveyor
JPS5496012A (en) * 1978-01-13 1979-07-30 Victor Co Of Japan Ltd Magnetic head
JPS55125519A (en) * 1979-03-23 1980-09-27 Hitachi Ltd Magnetic head
JPS5641519A (en) * 1979-09-13 1981-04-18 Hitachi Ltd Magnetic head
JPS5755522A (en) * 1980-09-22 1982-04-02 Hitachi Ltd Magnetic head

Also Published As

Publication number Publication date
DE3244160A1 (de) 1983-06-09
US4571652A (en) 1986-02-18
GB2114357B (en) 1986-09-03
GB2114357A (en) 1983-08-17
JPS5891517A (ja) 1983-05-31
DE3244160C2 (de) 1985-11-21

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