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    • 111. 发明申请
    • TAPE CASSETTE
    • WO1985000919A1
    • 1985-02-28
    • PCT/JP1984000400
    • 1984-08-10
    • SONY CORPORATIONSASAKI, Shin
    • SONY CORPORATION
    • G11B23/08
    • G11B23/08735
    • A tape cassette for a recording and reproducing apparatus, for example, a video tape recorder, has: a cassette housing which passes a tape housed therein along an opening in the front surface thereof; a front cover pivotally attached to the cassette housing such as to cover the front side of the passed tape; a rear cover pivotally attached to the front cover such as to cover the rear side of the passed tape; a pin to be guided provided on the rear cover; and a guide groove provided on the cassette housing such as to guide the pin. When the front cover is pivoted in the cover-opening direction, the pin is guided along the guide groove, whereby the rear cover, together with the front cover, is pivoted in the cover-opening direction while the lower end portion of the rear cover is being pivoted with respect to the front cover so as to separate to the rear of the front cover. In the tape cassette, the front end surface of the lower end portion of the rear cover is formed into a slanted surface which is slanted to the rear in a manner such that the slanting degree gradually increases toward the upper end from the lower end of the front end surface. Further, the slanted surface is set such that, in a state wherein the front and rear covers are closed, the slanted surface is located at a position where a corner portion at the upper end of the slanted surface is substantially flush with the rear surface of the lower end portion of the front cover or a position where the corner portion is rearward of the rear surface of the lower end portion. By thus setting the slanted surface, when the rear cover is closed, the upper end corner portion of the front end surface of the lower end portion of the rear cover is allowed to move such as to greatly separate to the rear of the magnetic tape, thereby making it possible to prevent the magnetic tape from being caught and damaged by the upper end corner portion of the rear cover.
    • 112. 发明申请
    • APPARATUS FOR RECORDING AND REPRODUCING SIGNAL
    • 记录和再现信号的装置
    • WO1985000069A1
    • 1985-01-03
    • PCT/JP1984000317
    • 1984-06-18
    • SONY CORPORATIONTANAKA, Masato
    • SONY CORPORATION
    • G11B05/09
    • G11B19/02G11B5/00817G11B5/0086G11B15/02G11B20/10527G11B27/3027G11B2220/90
    • A signal recording apparatus wherein, when an input signal is recorded reciprocatingly on a recording medium (6) in such a manner that, after a recording head (5) and the recording medium (6) have moved relative to each other in one direction (the "first direction"), they move in the opposite direction (the "second direction"), the input signal is delivered to the recording head (5) through a delay element (3), and a signal delay quantity in the relative movement of the recording head (5) and the recording medium (6) in the second direction is set so as to be larger than the signal delay quantity in the movement thereof in the first direction, and the difference between these delay quantities is set so as to be longer than the time required for a movement reversal. Also disclosed is a signal recording and reproducing apparatus which is provided with means for delaying a reproduction signal from a reproducing head when a signal recorded on the recording medium (6) by this signal recording apparatus is reciprocatingly reproduced, and in which a reproduction signal delay quantity before the movement reversal is set so as to be larger than the reproduction signal delay quantity after the movement reversal in order to prevent the omission of any signal during the movement reversal, thereby obtaining temporarily-continuous signals. The signal recording apparatus is also provided with a signal recording apparatus which records a reversal mark in the vicinity of the movement reversal position on the recording medium (6). The signal recording and reproducing apparatus is also able to reciprocatingly record on the recording medium (6) an input signal and an address corresponding to the input signal, and read out, in reproduction in the first direction, both addresses recorded in the first and second directions, and compare the two addresses to determine the position at which the movement is reversed from reproduction in the first direction to reproduction in the second direction.
    • 113. 发明申请
    • METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
    • 制造半导体器件的方法
    • WO1984004995A1
    • 1984-12-20
    • PCT/JP1984000291
    • 1984-06-06
    • SONY CORPORATIONHAYASHI, HisaoYAMOTO, Hisayoshi
    • SONY CORPORATION
    • H01L21/205
    • H01L21/02381H01L21/02532H01L21/0262H01L21/02639
    • A semiconductor device manufacturing method includes an epitaxial growth step in which a polycrystalline semiconductor layer and a single-crystal semiconductor layer are selectively and simultaneously formed on a semiconductor substrate. Before the epitaxial growth step, an underlayer (12) for the formation of the polycrystalline layer, which has a surface layer a layer (12b) of a substance which will not react with the gas supplied to the surface of a semiconductor substrate (11) during the epitaxial growth step, is formed over a portion of the semiconductor substrate (11) at which the polycrystalline semiconductor layer will be formed. By so doing, it is possible to prevent the formation of a single crystal or large crystal grains in the boundary between a polycrystalline semiconductor layer (13p) and a single-crystal semiconductor layer (13s) formed simultaneously by epitaxial growth, so as to make clear the boundary between the polycrystalline semiconductor layer and the single-crystal semiconductor layer.
    • 一种半导体器件制造方法包括外延生长步骤,在该外延生长步骤中,在半导体衬底上选择性地同时形成多晶半导体层和单晶半导体层。 在外延生长步骤之前,形成用于形成多晶层的底层(12),该底层(12)具有作为表面层的非反应性物质层(12b)和多晶层表面暴露于其上的气体。 在外延生长步骤中的半导体衬底(11)形成在半导体衬底(11)的将要形成多晶半导体层的部分上。 因此可以防止在通过外延生长同时形成的多晶半导体层(13p)和单晶半导体层(13s)之间的界面中形成单晶或大晶粒, 以清楚地界定多晶半导体层与单晶半导体层之间的边界。
    • 118. 发明申请
    • SINGLE MAGNETIC POLE TYPE OF COMPOSITE MAGNETIC HEAD FOR PERPENDICULAR RECORDING
    • 单磁记录单磁复合磁头类型
    • WO1984003788A1
    • 1984-09-27
    • PCT/JP1984000110
    • 1984-03-16
    • SONY CORPORATIONHAYAKAWA, KiyonoriMISHIMA, Akio
    • SONY CORPORATION
    • G11B05/12
    • G11B5/1278
    • A single magnetic pole type of composite magnetic head for perpendicular recording comprises a perpendicular recording-reproducing head unit and an erase head unit. The perpendicular recording-reproducing head unit consists of a main recording-reproducing magnetic pole (10) made of a thin film of a soft magnetic material of which one end faces a magnetic recording medium (11), and which has a predetermined width; non-magnetic guard members (12a) (12b) which clamp, from both sides, the surface of the main recording-reproducing magnetic pole (10) which faces the magnetic recording medium; a magnetic core part (13a) which is integrated with the non-magnetic guard member (12a) and is positioned a predetermined distance away from the magnetic recording medium (11) in contact with at least one surface of the main recording-reproducing magnetic pole (10); and a groove part (15) provided in the magnetic core part (13a) which separates a first auxiliary magnetic pole part (14a) in contact with the main recording-reproducing magnetic pole (10) and a return path part (14b) acting as a return path for the magnetic flux of the main recording-reproducing magnetic pole (10), and about which a winding is provided on the main recording-reproducing magnetic pole (10). On the other hand, the erase head unit is composed of a pair of main erasing magnetic poles (18a) (18b) which are positioned a predetermined distance away from the main recording-reproducing magnetic pole (10) in the direction of travel of the magnetic recording medium (11), facing the medium, and are arranged so that the distance therebetween is smaller than the width of the main recording-reproducing main magnetic pole (10); and an erasing winding (21) exciting the main erasing magnetic poles (18a) (18b). The main recording-reproducing magnetic pole (10) and the main erasing magnetic poles (18a) (18b) are integrated with each other by the non-magnetic guard member (12b) at the surfaces thereof which face the magnetic recording medium. Thus there is no possibility that previous data is left unerased when rewriting, even if a track deviation occurs because of some misalignment of the magnetic recording medium (11) in loading, or the expansion and contraction thereof due to changes in temperature or humidity, and it is possible to obtain accurate data during reproduction.
    • 120. 发明申请
    • PERPENDICULAR MAGNETIC RECORDING HEAD
    • 全能磁记录头
    • WO1984003386A1
    • 1984-08-30
    • PCT/JP1984000064
    • 1984-02-22
    • SONY CORPORATIONHAYAKAWA, Kiyonori
    • SONY CORPORATION
    • G11B05/12
    • G11B5/1278
    • A perpendicular magnetic recording head comprises a main magnetic pole (2) constituted by a thin layer of a soft magnetic material and a pair of guard blocks (4) (4') integrally bonded to the main magnetic pole (2) so as to sandwich it from both sides thereof. The guard blocks (4) (4') are each constituted by a composite of a non-magnetic material portion (5) or (5') extending from the surface of the head which comes into contact with a magnetic recording medium, as far as a predetermined position, and a magnetic material portion (6) or (6'). The joint between each non-magnetic material portion (5) or (5') and the corresponding magnetic material portion (6) or (6') is provided with a groove (9) or (9') constituting an auxiliary magnetic pole portion (7) or (7') which is connected magnetically to the main magnetic pole (2) so as to act as an auxiliary magnetic pole across the width in the direction of travel of the magnetic recording medium. Each auxiliary magnetic pole portion (7) or (7') formed by the groove (9) or (9') has a smaller width in the direction of the track than that of the guard block (4) or (4'). A winding C is provided on the main magnetic pole (2) within the grooves (9) (9'), and the impedance of the winding C is reduced to increase the magnetic recording and reproduction efficiency.