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公开(公告)号：US3700498A
公开(公告)日：1972-10-24
申请号：US3700498D
申请日：1970-12-10
Applicant: IBM
Inventor： KANAZAWA KAY KEIJI , SEKI HAJIME , STREET GEORGE BRYAN
CPC classification number: G03G5/082 , C23C14/0623
Abstract: ELECTROPHOTOGRAPHIC PLATES ARE FORMED BY DEPOSITING A LAYER OF BETA PHASE POLYCRYSTALLINE AS4S4 BY EVAPORATION UNDER VACUUM ONTO AN ELECTRICALLY CONDUCTIVE SUBSTRATE HELD AT A TEMPERATURE BETWEEN 100*C. AND 200*C.
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公开(公告)号：US3451912A
公开(公告)日：1969-06-24
申请号：US3451912D
申请日：1966-07-15
Applicant: IBM
Inventor： HEURLE FRANCOIS M D , ESAKI LEO , SEKI HAJIME
CPC classification number: H01L21/00 , C23C14/165 , H01L29/00
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公开(公告)号：CA1075799A
公开(公告)日：1980-04-15
申请号：CA277283
申请日：1977-04-29
Applicant: IBM
Inventor： SEKI HAJIME
Abstract: ERASABLE VISUAL IMAGE DISPLAY DEVICE An erasable visual image display device contains a pair of conductive electrodes in spaced relationship. One electrode has a cation permselective membrane thereon and the other electrode has an anion permselective membrane thereon. Positioned between the two membranes is a recording medium having the properties of being both photoionizable and capable of electrochemically producing colored species. The medium contains an electrochemically reversible acceptor molecule, for example, 1, 2, 4, 5 tetracyanobenzene and an electrochemically reversible donor molecule, for example, l-phenyl-3 diethylaminostyrl -5-diethylaminophenyl .DELTA.2 pyrazoline.
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公开(公告)号：CA831693A
公开(公告)日：1970-01-06
申请号：CA831693D
Applicant: IBM
Inventor： ESAKI LEO , HEURLE FRANCOIS M D , SEKI HAJIME
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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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Patent Agency Ranking
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公开(公告)号：DE1589959A1
公开(公告)日：1970-01-02
申请号：DEJ0034160
申请日：1967-07-15
Applicant: IBM
Inventor： MAX D HEURLE FRANCOIS , ESAKI LEO CHAPPAQUA , SEKI HAJIME
Abstract: 1,151,643. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 5 June, 1967 [15 July, 1966], No. 25835/67. Heading H1K. [Also in Division C7] A Schottby-barrier diode is formed by sputtering a layer 7 of metal on to a semi-conductor body 3 which is itself biased during the sputtering process so that contaminants may be sputtered off from the surface while the metal layer 7 is applied. Suitable semi-conductor materials include Si, Ge or GaAs, while the layer 7 may be of a high work-function metal such as W, Cr or Mo for N-type material, or a low work-function metal such as Al, In, Sn, or Zn for P-type material. The preferred form comprises an N-type layer 5 epitaxially deposited on a high conductivity (e.g. degenerate) substrate 3, the metal layer 7 being sputtered on to the epitaxial layer 5. Suitable sputtering apparatus is described, in which the sputtering gas used is argon. The semi-conductor substrate is initially etched clean, and may also be heated during the sputtering process. The metal layer 7 may form a compound, e.g. a metal-silicide; with the semi-conductor surface, thus producing a good mechanical bond.
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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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