DE69007180D1 - Verschlussglas mit geringem Verschleiss für Magnetbandköpfe. - Google Patents

Verschlussglas mit geringem Verschleiss für Magnetbandköpfe.

Info

Publication number
DE69007180D1
DE69007180D1 DE90850196T DE69007180T DE69007180D1 DE 69007180 D1 DE69007180 D1 DE 69007180D1 DE 90850196 T DE90850196 T DE 90850196T DE 69007180 T DE69007180 T DE 69007180T DE 69007180 D1 DE69007180 D1 DE 69007180D1
Authority
DE
Germany
Prior art keywords
magnetic tape
sealing glass
low wear
tape heads
heads
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 - Fee Related
Application number
DE90850196T
Other languages
English (en)
Other versions
DE69007180T2 (de
Inventor
Gerald Allen Daughenbaugh
Eugene Bertrand Rigby
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE69007180D1 publication Critical patent/DE69007180D1/de
Publication of DE69007180T2 publication Critical patent/DE69007180T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/24—Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • 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
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
    • 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • G11B5/295—Manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
DE1990607180 1989-06-19 1990-05-21 Verschlussglas mit geringem Verschleiss für Magnetbandköpfe. Expired - Fee Related DE69007180T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36773389A 1989-06-19 1989-06-19

Publications (2)

Publication Number Publication Date
DE69007180D1 true DE69007180D1 (de) 1994-04-14
DE69007180T2 DE69007180T2 (de) 1994-09-22

Family

ID=23448386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990607180 Expired - Fee Related DE69007180T2 (de) 1989-06-19 1990-05-21 Verschlussglas mit geringem Verschleiss für Magnetbandköpfe.

Country Status (3)

Country Link
EP (1) EP0404741B1 (de)
JP (1) JPH06103523B2 (de)
DE (1) DE69007180T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376300B1 (de) 2012-10-15 2023-12-27 Hewlett-Packard Development Company, L.P. Aufladerolle für einen elektrografischen drucker
CN108225403B (zh) * 2017-12-28 2024-01-30 重庆日联科技有限公司 带托盘的异形件通用检测机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2316742A (en) * 1941-06-05 1943-04-13 E I Du Pont De Neumours & Comp Ceramic coating composition
US3493405A (en) * 1967-08-07 1970-02-03 Gen Electric Semiconductor encapsulation glass
DE1596995A1 (de) * 1967-12-28 1971-04-01 Siemens Ag Glaslot
US4435511A (en) * 1982-09-13 1984-03-06 Owens-Illinois, Inc. Glasses suitable for sealing ferrites
JPS60186437A (ja) * 1984-03-02 1985-09-21 Fuji Elelctrochem Co Ltd フエライト接着用ガラス組成物
JPS63170240A (ja) * 1987-01-09 1988-07-14 Toshiba Glass Co Ltd 低融点ガラス組成物
JPH01138151A (ja) * 1987-11-24 1989-05-31 Matsushita Electric Ind Co Ltd 磁気ヘッド

Also Published As

Publication number Publication date
JPH0333028A (ja) 1991-02-13
DE69007180T2 (de) 1994-09-22
JPH06103523B2 (ja) 1994-12-14
EP0404741A1 (de) 1990-12-27
EP0404741B1 (de) 1994-03-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee