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公开(公告)号：SG101956A1
公开(公告)日：2004-02-27
申请号：SG200100632
申请日：2001-02-02
Applicant: SONY CORP
Inventor： YOTARO SANADA , YOSHIO KUSUI , NAOHIRO NETSU
Abstract: There is obtained a disk cartridge apparatus in which when a plurality of disk cartridges which are different in size and thickness are loaded on a drive device, the heights of respective switch detection surfaces of disk cartridges can be horizontally aligned with a mode detection switch of the drive device. A disk cartridge apparatus comprises disk cartridges (1) (12) stored within cartridge housings different in size and thickness in which disks having different diameters are stored, mis-erase prevention plugs (44) (49) including mis-erase prevention detection holes (45) (50) having switch detection surfaces (46) (51) on the disk cartridges (1) (12), a cassette compartment (23) including a recording and reproducing portion for loading the disk cartridge (1) (12) to record and/or reproduce the disk, a detection switch (47) (52) disposed on the cassette compartment (23) to detect the mis-erase prevention detection holes (45) (50) and a position reference portion for determining the positions and heights of the disk cartridges on the cassette compartment (23), wherein when the disk cartridge (1) (12) is loaded on the cassette compartment (23), the heights of the respective switch detection surfaces (46) (51) of the disk cartridges can be horizontally aligned with the detection switches (47) (52).
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公开(公告)号：HK1043648A1
公开(公告)日：2002-09-20
申请号：HK02103095
申请日：2002-04-24
Applicant: SONY CORP
Inventor： YOTARO SANADA , YOSHIO KUSUI , NAOHIRO NETSU
IPC: G11B11/105 , G11B17/04 , G11B17/043 , G11B23/03 , G11B
Abstract: There can be obtained a disk cartridge and its loading method in which, when a disk cartridge is miniaturized, loading recessed portions can easily be secured and mis-loading and mis-insertion of the disk cartridge can be prevented. A disk cartridge in which a disk cartridge 1 has at its left and right side end portions on the insertion side formed a pair of loading recess portions 11a, 11b and one loading recess portion 11b is hidden by a shutter plate 7 which is placed in the closed state. A disk cartridge loading method in which when the disk cartridge 1 is inserted into a drive apparatus 17, the shutter plate 7 is opened by a shutter lock releasing member 9 of the drive apparatus 17, whereby after one loading recess portion 11b hidden by the shutter plate 17 is exposed, the pair of loading recess portions lla, llb are chucked by chucking rollers 20a, 20b of a loading arm 19 and the disk cartridge 1 is brought to the loading position.
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公开(公告)号：SG90197A1
公开(公告)日：2002-07-23
申请号：SG200006547
申请日：2000-11-10
Applicant: SONY CORP
Inventor： YOTARO SANADA , YOSHIO KUSUI , NAOHIRO NETSU
Abstract: A disk cartridge device by which a plurality of kinds of disk cartridges of different sizes can be selectively located at respective desired positions of height and thereby loaded onto a single recording and reproducing device. A disk cartridge device includes first (1) and second disk cartridges of different sizes for housing therein disks (5) of different disk diameters and a cassette compartment (25) onto which the first and second disk cartridges are selectively loaded, the cassette compartment including a pair of positioning pins (28, 29) having height- deciding bases (26, 27) for properly placing the first disk cartridge (1) and a pair of positioning pins (32, 33) having height-deciding bases (30, 31) for properly placing the second disk cartridge, wherein the first disk cartridge has stepped escape holes (40, 41) formed on its lower surface to enable itself to escape from the positioning pins (32, 33) by which the second disk cartridge is properly positioned in the loading state when positioning holes (9, 10) of the first disk cartridge are properly fitted into positioning pins (28, 29) and the height is properly decided.
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公开(公告)号：MY127164A
公开(公告)日：2006-11-30
申请号：MYPI20010437
申请日：2001-01-31
Applicant: SONY CORP
Inventor： NAOHIRO NETSU , YOTARO SANADA , YOSHIO KUSUI
Abstract: THERE IS OBTAINED A DISK CARTRIDGE APPARATUS IN WHICH WHEN A PLURALITY OF DISK CARTRIDGES WHICH ARE DIFFERENT IN SIZE AND THICKNESS ARE LOADED ON A DRIVE DEVICE, THE HEIGHTS OF RESPECTIVE SWITCH DETECTION SURFACES OF DISK CARTRIDGES CAN BE HORIZONTALLY ALIGNED WITH A MODE DETECTION SWITCH OF THE DRIVE DEVICE. A DISK CARTRIDGE APPARATUS COMPRISES DISK CARTRIDGES (1) (12) STORED WITHIN CARTRIDGE HOUSINGS DIFFERENT IN SIZE AND THICKNESS IN WHICH DISKS HAVING DIFFERENT DIAMETERS ARE STORED, MIS-ERASE PREVENTION PLUGS (44) (49) INCLUDING MIS-ERASE PREVENTION DETECTION HOLES (45) (50) HAVING SWITCH DETECTION SURFACES (46) (51) ON THE DISK CARTRIDGES (1) (12), A CASSETTE COMPARTMENT (23) INCLUDING A RECORDING AND REPRODUCING PORTION FOR LOADING THE DISK CARTRIDGE (1) (12) TO RECORD AND/OR REPRODUCE THE DISK, A DETECTION SWITCH (47) (52) DISPOSED ON THE CASSETTE COMPARTMENT (23) TO DETECT THE MIS-ERASE PREVENTION DETECTION HOLES (45) (50) AND A POSITION REFERENCE PORTION FOR DETERMINING THE POSITIONS AND HEIGHTS OF THE DISK CARTRIDGES ON THE CASSETTE COMPARTMENT (23), WHEREIN WHEN THE DISK CARTRIDGE (1) (12) IS LOADED ON THE CASSETTE COMPARTMENT (23), THE HEIGHTS OF THE RESPECTIVE SWITCH DETECTION SURFACES (46) (51) OF THE DISK CARTRIDGES CAN BE HORIZONTALLY ALIGNED WITH THE DETECTION SWATCHES (47) (52).(FIG 1)
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公开(公告)号：SG96554A1
公开(公告)日：2003-06-16
申请号：SG200003208
申请日：2000-06-08
Applicant: SONY CORP
Inventor： NAOHIRO NETSU , YOSHITAKA AOKI , TETSU WATANABE , KAZUHIKO FUJIIE , YASUAKI MAEDA , TAKUYA KAERIYAMA
Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.
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Patent Agency Ranking
公开(公告)号：SG92756A1
公开(公告)日：2002-11-19
申请号：SG200006534
申请日：2000-11-10
Applicant: SONY CORP
Inventor： YOTARO SANADA , YOSHIO KUSUI , NAOHIRO NETSU
IPC: G11B17/046 , G11B17/02 , G11B17/04 , G11B17/043 , G11B23/03
Abstract: A disk cartridge device capable of selectively positioning and mounting a plurality of kinds of disk cartridges having different sizes onto a recording and reproducing device without troubles. First and second (12) disk cartridges including disks having different disk diameters each stored in cartridge housings having different sizes, a cassette compartment (25) for selectively mounting the first and second disk cartridges, a pair of positioning pins (28, 29) having bases (26, 27) for determining the height for positioning the first disk cartridge onto the cassette compartment, a pair of positioning pins (32, 33) having bases (30, 31) for determining the height for positioning the second disk cartridge (12), and pairs of positioning holes (20, 21) and on one surface of the first and second disk cartridges, respectively, are provided, wherein the position of the positioning holes (20, 21) of the second disk cartridge (12) is disposed outside the disk (5) circumference of the first disk cartridge.
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公开(公告)号：MY127192A
公开(公告)日：2006-11-30
申请号：MYPI20010438
申请日：2001-01-31
Applicant: SONY CORP
Inventor： NAOHIRO NETSU , YOTARO SANADA , YOSHIO KUSUI
IPC: G11B17/04 , G11B11/105 , G11B17/043 , G11B23/03
Abstract: THERE CAN BE OBTAINED A DISK CARTRIDGES AND ITS LOADING METHOD IN WHICH, WHEN A DISK CARTRIDGE IS MINIATURIZED, LOADING RECESSED PORTIONS CAN EASILY BE SECURED AND MIS-LOADING AND MIS-INSERTION OF THE DISK CARTRIDGE CAN BE PREVENTED. A DISK CARTRIDGE IN WHICH A DISK CARTRIDGE 1 HAS AT ITS LEFT AND RIGHT SIDE END PORTIONS ON THE INSERTION SIDE FORMED A PAIR OF LOADING RECESS PORTIONS 11A, 11B AND ONE LOADING RECESS PORTION 11B IS HIDDEN BY A SHUTTER PLATE 7 WHICH IS PLACED IN THE CLOSED STATE.@A DISK CARTRIDGES LOADING METHOD IN WHICH WHEN THE DISK CARTRIDGE 1 IS INSERTED INTO A DRIVE APPARATUS 17, THE SHUTTER PLATE 7 IS OPENED BY A SHUTTER LOCK RELEASING MEMBER 9 OF THE DRIVE APPARATUS 17, WHEREBY AFTER ONE LOADING RECESS PORTIONS 11A, 11B ARE CHUCKED BY CHUCKING ROLLERS 20A, 20B OF A LOADING ARM 19 AND THE DISK CARTRIDGE 1 IS BROUGHT TO THE LOADING POSITION.@@FIGURE 1
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公开(公告)号：MY126707A
公开(公告)日：2006-10-31
申请号：MYPI20002430
申请日：2000-05-31
Applicant: SONY CORP
Inventor： NAOHIRO NETSU , YOSHITAKA AOKI , TETSU WATANABE , KAZUHIKO FUJIIE , YASUAKI MAEDA , TAKUYA KAERIYAMA
Abstract: AN OPTICAL RECORDING MEDIUM (1)IS PROVIDED WHICH HAS A SUBSTRATE ANS A SIGNAL RECORDING LAYER PROVIDED ON THE SUBSTRATE AND IN WHICH AN INFORMATION SIGNAL IS RECORDED IN THE FORM OF MICROSCOPIC PITS . A LIGHT BEAM IS FOCUSED ON THE SIGNAL RECORDING LAYER AND SOME CHANGE OF THE LIGHT BEAM CARRIED BY A RETURN LIGHT FROM THE SIGNAL RECORDING LAYER IS DETECTED TO READ THE INFORMATION SIGNAL RECORDED ON THE SIGNAL RECORDING LAYER. THE OPTICAL RECORDING MEDIUM (1) HAS A DIAMETER OF 65 MM OR LESS AND A THICKNESS OF 0.4 TO 0.70 MM . AN INFORMATION SIGNAL RECORDING AREA EXTENDS OUTWARDLY FROM A RADIAL POSITION OF 12.5 MM OR LESS FROM THE CENTER OF THE MEDIUM (1). THE RATIO IN AREA BETWEEN THE INFORMATION SIGNAL RECORDING AREA AND NON-SIGNAL RECORDING AREA IS 3.4 OR MORE . THE STORAGE CAPACITY OF THIS MEDIUM (1) IS 2 GIGABYTES OR MORE . THE OPTICAL RECORDING MEDIUM (1) HAS FORMED AT THE CENTER THEREOF A CENTER HOLE (57) AROUND WHICH AN ANNULAR TABLE-ABUTMENT CONVEXING TO ONE SIDE OF THE MEDIUM (1) IS FORMED . A MAGNETIC-CLAMPING HUB (5) IS INSTALLED IN THE CENTER HOLE (57) AND THUS THE MEDIUM (1)IS MAGNETICALLY CLAMPED TO A ROTATION DRIVING MECHANISM OF AN OPTICAL RECORDING AND/OR REPRODUCING APPARATUS . THE COMPACTNESS AND HIGH DENSITY OF RECORDING OF THE OPTICAL RECORDING MEDIUM (1) WILL CONTRIBUTE GREATLY TO A FURTHER COMPACT STRUCTURE OF A RECORDING AND/OR REPRODUCING APPARATUS IN WHICH THE MEDIUM (1) IS TO BE USED.FIG.1
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公开(公告)号：SG115363A1
公开(公告)日：2005-10-28
申请号：SG200101103
申请日：2001-02-26
Applicant: SONY CORP
Inventor： YOTARO SANADA , YOSHIO KUSUI , NAOHIRO NETSU
Abstract: There are obtained a disk cartridge apparatus and a disk cartridge in which a disk cartridge having a different format is made unable to be inserted into a drive apparatus from a mechanism standpoint so that a user can instantly recognize that the disk cartridge having the different format has been inserted into the drive apparatus by mistake. A disk cartridge apparatus and a disk cartridge include a first disk cartridge and a second disk cartridge having cartridge housings of the same shape to store therein disks of the system that can be recorded and read by light of red laser beams and light of blue laser beams. When the first disk cartridge is inserted into a first drive apparatus 19, a discriminating groove of the first disk cartridge becomes identical to a discriminating convex portion 20 of the first drive apparatus 19 to enable the first disk cartridge to be loaded on the first drive apparatus. When a disk cartridge 21 of a different kind is inserted into the first drive apparatus 19, the discriminating convex portion 20 and a discriminating groove 24 of the disk cartridge 21 of different kind become nonidentical to each other to inhibit the disk cartridge of the different kind from being loaded on the first drive apparatus.
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公开(公告)号：SG97856A1
公开(公告)日：2003-08-20
申请号：SG200001139
申请日：2000-03-02
Applicant: SONY CORP
Inventor： KAZUHIKO FUJIIE , NAOHIRO NETSU , TOMOHIRO KODA
IPC: G11B5/02 , G11B5/127 , G11B5/60 , G11B11/10 , G11B11/105 , G11B11/12 , G11B13/04 , G11B11/00 , G11B13/00
Abstract: A magnetic head device comprising a head section 55 for applying a magnetic field to a disk. The head section 55 includes a magnetic field generating section 61 and a slider 62. The slider 62 supports the magnetic field generating section 61 and may be set in sliding contact with the disk. The magnetic field generating section 61 has a magnetic core 63 and a coil 64 wound around the magnetic core 63. The section 61 is designed to generate the magnetic field and embedded in and formed integral with the slider 62. The head section 55 excels in heat-radiating property.
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