公开(公告)号：JPH0319611B2

公开(公告)日：1991-03-15

申请号：JP1503982

申请日：1982-02-03

Applicant: BASF AG

Inventor： MANFUREETO GEERUNGU ,  KURAUSU SHETORE ,  HERUMUUTO KURAISURAA ,  PEETAA RUDORUFU ,  YOOAHIMU HATSUKU ,  FURIIDORIHI ANSURINGAA

IPC: G11B5/84 ,  B24B7/13 ,  B24B7/16 ,  B24B21/04

公开(公告)号：JPH02260111A

公开(公告)日：1990-10-22

申请号：JP31086689

申请日：1989-12-01

Applicant: BASF AG

Inventor： HARUTOMUUTO HIBUSUTO ,  ARENTO BUERUNAA ,  YOOAHIMU HATSUKU ,  HAINRIHI MANSUPERUGAA ,  MIHIYAERU HITSUTSUFUERUTO ,  BUERUNAA GURAU ,  GIYUNTAA HAIRU ,  NORUBERUTO HORU

IPC: G11B23/03 ,  C10M105/34 ,  C10N20/06 ,  C10N40/18 ,  G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/84 ,  G11B23/033

Abstract: PURPOSE: To obtain a recording carrier having a long operation service life by forming an anti-friction layer having microopen cells and incorporating a liquid lubricant therein. CONSTITUTION: A carbon layer of 10 to 100nm thick is formed by DC magnetron sputtering in Ar under a pressure of 1×10 to 5×10 millibar on the disk- shaped recording carrier consisting of a flexible carrier material and a ferromagnetic metallic thin layer. Next, the liquid lubricant is packed into the microopen cells existing in this carbon layer. A mixture composed of a functional perfluoropolyether compd., fatty acid and fatty acid ester and silicon fluoride or their compds. is used as the lubricant.

公开(公告)号：JPH02152077A

公开(公告)日：1990-06-12

申请号：JP26230789

申请日：1989-10-09

Applicant: BASF AG

Inventor： YOOAHIMU HATSUKU ,  BUERUNAA GURAU ,  BUERUNAA ZUITSUKUMIYURAA ,  HAINRITSUHI MANSUPERUGAA ,  HERUMUUTO YAKUSHIYU

IPC: G11B21/12 ,  G11B5/41 ,  G11B5/54 ,  G11B7/005 ,  G11B11/105 ,  G11B19/04 ,  G11B19/06 ,  G11B33/14

Abstract: PURPOSE: To prevent wear due to the waiting time of a long period on the same track by separating a magnetic head from the track by a prescribed time when the magnetic head being in a waiting position exceeds a prescribed time. CONSTITUTION: The track counter SZ of an abrasion prevention control circuit AB reports a track 7 on which a magnetic head HD is positioned and a timer TIM outputs a start pulse ST when the waiting time of the head HD exceeds the prescribed time. The circuit AB outputs a changeover signal US to change over a changeover switch S2 by receiving the pulse ST. As a result, a positioning device controlling electronic device EP is connected to the circuit AB and separates the head HD from the track via a head positioning device P by the signal of the circuit AB. Then, when an wear prevention period is elapsed, the head HD is returned to be positioned. Thus, damage due to that the head is positioned on the same track for a long time is prevented.

公开(公告)号：JPS63168831A

公开(公告)日：1988-07-12

申请号：JP32421087

申请日：1987-12-23

Applicant: BASF AG

Inventor： MIHIYAERU HITSUFUERUTO ,  BUERUNAA GURAU ,  YOOAHIMU HATSUKU

IPC: G11B5/72 ,  G11B5/64 ,  G11B5/71 ,  G11B5/725 ,  G11B5/82 ,  G11B5/84

公开(公告)号：JPS6066329A

公开(公告)日：1985-04-16

申请号：JP13923284

申请日：1984-07-06

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  YOOAHIMU HATSUKU ,  KARURU KURUTSUKAA ,  BUERUNAA BARUTSU ,  KARURU HAINTSU REEMAA ,  PEETAA RUDORUFU ,  ROORANTO FUARUKU ,  GIYUNTAA ETSUKERUTO

IPC: G11B5/845 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/842