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公开(公告)号：DE68925459T2
公开(公告)日：1996-09-05
申请号：DE68925459
申请日：1989-10-19
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , CUOMO JEROME J , GUARNIERI C RICHARD , RAMANATHAN KUMBAKONAM V
Abstract: A process for forming chromium dioxide thin films which are receptive to high density magnetic recording. The process comprises depositing both chromium and oxygen on a substrate by evaporative techniques and concurrently bombarding the substrate with high energy ions of at least one of the film constituents to form a latent CrOx film forming layer. The process is carried out at approximately room temperature. The as-grown latent film forming layer is subsequently heat treated by a rapid thermal anneal step which raises the temperature of the as-grown fillm to about 500 DEG C. The rapid thermal anneal step preferably comprises a series of at least five separate pulses over a 10-second time span. After the rapid thermal anneal, the sample is rapidly quenched to room temperature.
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公开(公告)号：DE69224606D1
公开(公告)日：1998-04-09
申请号：DE69224606
申请日：1992-12-15
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , MCCLELLAND GARY MILES , SEKI HAJIME
Abstract: An optical recording system is described in which the optical head 31 is operated in physical contact with the surface of the optical recording medium during system operation at a selected operating speed. The optical head includes one or more optical elements 33 mounted on a substrate 37 which is in physical, sliding contact with the recording medium. The substrate is fabricated from a crystalline material which has a non-linear load versus friction characteristic in the negative load region. When the head is in sliding contact with the recording medium surface, a restoring force is generated which maintains the optical head in physical contact with the recording medium overcoming any lifting forces generated by the moving air layer adjacent the recording medium surface. This allows the head to be operated with a negative external load applied. Utilizing the optical head having the objective lens mounted on the substrate in close proximity to the recording medium surface allows high density recording to be achieved without the requirement of an electro-mechanical servo system to provide beam focusing for the system.
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公开(公告)号：DE3873969D1
公开(公告)日：1992-10-01
申请号：DE3873969
申请日：1988-04-26
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , HOPNER EMIL
Abstract: A high speed magnetisable disk contact recording and reading system comprising a recording disk (10) including a substrate with a coating (15) thereon of a magnetisable material having a relatively low thermal conductivity, a magnetic recording and reading transducer (17) in physical contact with the recording disk (10), and means (21) to produce relative motion between the magnetisable recording disk and said transducer. According the invention the system is characterised in that the transducer comprises a substrate of a single crystal material having a relatively high thermal conductivity, a relatively low friction coefficient and a high surface energy, whereby an attractive force is exerted between the recording medium said transducer so that the transducer is maintained in contact with the recording medium during said relative motion and high density recorded data can be reliably written on and sensed from the recording medium.
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公开(公告)号：CA1294704C
公开(公告)日：1992-01-21
申请号：CA560859
申请日：1988-03-08
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , HOPNER EMIL
Abstract: HIGH SPEED MAGNETIC DISK CONTACT RECORDING SYSTEM A high speed magnetic disk recording system is described in which the recording medium comprises a substrate having a magnetic coating thereon, and a magnetic recording transducer is operated in physical contact with the recording medium. The magnetic transducer comprises a single crystal material on at least the surface which contacts the recording medium. The single crystal material has a high thermal conductivity, a low friction coefficient and a high surface energy so that, when relative motion is provided between the magnetic recording transducer and the recording medium, an attractive force is generated which maintains the magnetic recording transducer in contact with the recording medium so that high density recorded data can be reliably written and sensed without excessive wear to either the magnetic transducer or the recording medium. SA986025
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公开(公告)号：DE68925459D1
公开(公告)日：1996-02-29
申请号：DE68925459
申请日：1989-10-19
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , CUOMO JEROME J , GUARNIERI C RICHARD , RAMANATHAN KUMBAKONAM V
Abstract: A process for forming chromium dioxide thin films which are receptive to high density magnetic recording. The process comprises depositing both chromium and oxygen on a substrate by evaporative techniques and concurrently bombarding the substrate with high energy ions of at least one of the film constituents to form a latent CrOx film forming layer. The process is carried out at approximately room temperature. The as-grown latent film forming layer is subsequently heat treated by a rapid thermal anneal step which raises the temperature of the as-grown fillm to about 500 DEG C. The rapid thermal anneal step preferably comprises a series of at least five separate pulses over a 10-second time span. After the rapid thermal anneal, the sample is rapidly quenched to room temperature.
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Patent Agency Ranking
公开(公告)号：CA2074865A1
公开(公告)日：1993-06-25
申请号：CA2074865
申请日：1992-07-29
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , SEKI HAJIME
IPC: G11B21/21 , G11B5/012 , G11B5/10 , G11B5/187 , G11B5/255 , G11B5/54 , G11B5/58 , G11B5/60 , G11B19/20
Abstract: A contact magnetic storage system in which the slider 13, which supports the magnetic read/write head, is in physical contact with a rigid magnetic storage medium 12 during system operation at a selected operating speed. The slider material has a load versus friction characteristic that is non-linear in the negative load region. This characteristic allows the slider to be suspended from an access arm with zero or negative external loading. In a conventional magnetic storage system, at operating speed the slider is lifted away from the surface of the storage medium by at least the thickness of the air film adjacent the moving storage medium surface. In the present invention, due to the non-linear load versus friction characteristics of the slider material, a restoring force is generated at system operating speed which overcomes the lift of the air bearing and maintains the slider in contact with the storage medium surface without substantial wear or damage to either the slider or the storage medium. Various single crystal, polycrystalline and some amorphous materials have been shown to work in such a contact magnetic storage system.
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公开(公告)号：DE69224606T2
公开(公告)日：1998-11-05
申请号：DE69224606
申请日：1992-12-15
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , MCCLELLAND GARY MILES , SEKI HAJIME
Abstract: An optical recording system is described in which the optical head 31 is operated in physical contact with the surface of the optical recording medium during system operation at a selected operating speed. The optical head includes one or more optical elements 33 mounted on a substrate 37 which is in physical, sliding contact with the recording medium. The substrate is fabricated from a crystalline material which has a non-linear load versus friction characteristic in the negative load region. When the head is in sliding contact with the recording medium surface, a restoring force is generated which maintains the optical head in physical contact with the recording medium overcoming any lifting forces generated by the moving air layer adjacent the recording medium surface. This allows the head to be operated with a negative external load applied. Utilizing the optical head having the objective lens mounted on the substrate in close proximity to the recording medium surface allows high density recording to be achieved without the requirement of an electro-mechanical servo system to provide beam focusing for the system.
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公开(公告)号：CA2074865C
公开(公告)日：1998-05-05
申请号：CA2074865
申请日：1992-07-29
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , SEKI HAJIME
IPC: G11B21/21 , G11B5/012 , G11B5/10 , G11B5/187 , G11B5/255 , G11B5/54 , G11B5/58 , G11B5/60 , G11B19/20 , G11B5/48
Abstract: A contact magnetic storage system in which the slider, which supports the magnetic read/write head, is in physical contact with a rigid magnetic storage medium during system operation at a selected operating speed. The slider material has a load versus friction characteristic that is non-linear in the negative load region. This characteristic allows the slider to be suspended from an access arm with zero or negative external loading. In a conventional magnetic storage system, at operating speed the slider is lifted away from the surface of the storage medium by at least the thickness of the air film adjacent the moving storage medium surface. In the present invention, due to the non-linear load versus friction characteristics of the slider material, a restoring force is generated at system operating speed which overcomes the lift of the air bearing and maintains the slider in contact with the storage medium surface without substantial wear or damage to either the slider or the storage medium. Various single crystal, polycrystalline and some amorphous materials have been shown to work in such a contact magnetic storage system.
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公开(公告)号：SG46162A1
公开(公告)日：1998-02-20
申请号：SG1995002121
申请日：1992-12-15
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , SEKI HAJIME
IPC: G11B21/21 , G11B5/012 , G11B5/10 , G11B5/187 , G11B5/255 , G11B5/54 , G11B5/58 , G11B5/60 , G11B19/20 , G11B5/31 , G11B5/48
Abstract: A contact magnetic storage system in which the slider 13, which supports the magnetic read/write head, is in physical contact with a rigid magnetic storage medium 12 during system operation at a selected operating speed. The slider material has a load versus friction characteristic that is non-linear in the negative load region. This characteristic allows the slider to be suspended from an access arm with zero or negative external loading. In a conventional magnetic storage system, at operating speed the slider is lifted away from the surface of the storage medium by at least the thickness of the air film adjacent the moving storage medium surface. In the present invention, due to the non-linear load versus friction characteristics of the slider material, a restoring force is generated at system operating speed which overcomes the lift of the air bearing and maintains the slider in contact with the storage medium surface without substantial wear or damage to either the slider or the storage medium. Various single crystal, polycrystalline and some amorphous materials have been shown to work in such a contact magnetic storage system.
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公开(公告)号：DE3873969T2
公开(公告)日：1993-03-11
申请号：DE3873969
申请日：1988-04-26
Applicant: IBM
Inventor： BREZOCZKY BLASIUS , HOPNER EMIL
Abstract: A high speed magnetisable disk contact recording and reading system comprising a recording disk (10) including a substrate with a coating (15) thereon of a magnetisable material having a relatively low thermal conductivity, a magnetic recording and reading transducer (17) in physical contact with the recording disk (10), and means (21) to produce relative motion between the magnetisable recording disk and said transducer. According the invention the system is characterised in that the transducer comprises a substrate of a single crystal material having a relatively high thermal conductivity, a relatively low friction coefficient and a high surface energy, whereby an attractive force is exerted between the recording medium said transducer so that the transducer is maintained in contact with the recording medium during said relative motion and high density recorded data can be reliably written on and sensed from the recording medium.
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