公开(公告)号：AT52869T

公开(公告)日：1990-06-15

申请号：AT85306645

申请日：1985-09-18

Applicant: SONY CORP

Inventor： SAITO KENGO ,  OHTSU YASUNORI ,  AKAHIRA ISAO ,  INOUE MAKOTO

IPC: G11B17/028 ,  G11B19/20 ,  G11B19/28

Abstract: In order to eliminate undesirable slippage of a disc (1) on a turntable (10) of a disc drive which might occur upon effecting driving connection between the turntable (10) and the disc (1), the rotational speed of the turntable (10) is held at a level considerably lower than the normal speed for a predetermined short period of time upon starting to rotate the turntable (10).

公开(公告)号：CA1232064A

公开(公告)日：1988-01-26

申请号：CA490839

申请日：1985-09-16

Applicant: SONY CORP

Inventor： SAITO KENGO ,  OHTSU YASUNORI ,  AKAHIRA ISAO ,  INOUE MAKOTO

IPC: G11B17/028 ,  G11B19/20 ,  G11B19/28 ,  G11B19/26 ,  G11B17/03

Abstract: OF TOE diskLOSURE In order to eliminate undesirable slippage of the disk (1) on the turntable (10) of the disk drive which might occur upon effecting driving connection between the turntable and the disk, the rotation speed of the turntable is reduced to a level considerably lower than the regular speed for a predetermined short period of time upon starting to rotate the turntable.

公开(公告)号：DE68928930T2

公开(公告)日：1999-08-12

申请号：DE68928930

申请日：1989-12-12

Applicant: SONY CORP

Inventor： KOIZUMI OSAMU ,  SASAKI KAZUO ,  SAITO KENGO ,  ITABASHI MASAYUKI

IPC: G11B23/087

Abstract: A tape cassette comprises a supply and a take-up reel on which tape is wound, a cassette casing for rotatably enclosing the reels therein, a plurality of tape guide pins, each being press-fitted through the inner wall of the casing, for defining a tape path for the tape travelling between the pair of reels. The press-fit section of each guide pin is formed in a predetermined taper in such a manner as to gradually decrease its outer diameter towards its end. The straight press-fit section of the guide pin is formed in such a manner as to include a predetermined geometry of chamfered circumference at its end. In a tape guide pin used in conjunction with a tape guide roller, grease having a predetermined viscosity coefficient is disposed between the associated pin and roller. An electrical insulating cover is provided for surrounding the exposed underside of the electrically conductive lower half of the casing.

公开(公告)号：NO964907A

公开(公告)日：1997-05-21

申请号：NO964907

申请日：1996-11-19

Applicant: SONY CORP

Inventor： SAITO KENGO ,  NAKASHIMA IKUSHI ,  KANO TOSHIO ,  SATO TAKASHI ,  MASUGI SHINJI

IPC: G11B15/62 ,  G11B15/64 ,  G11B23/50 ,  G11B5/48 ,  G11B5/127 ,  G11B15/60

CPC classification number: G11B23/502 ,  G11B15/62 ,  G11B15/64

公开(公告)号：SG33440A1

公开(公告)日：1996-10-18

申请号：SG1995000985

申请日：1995-07-29

Applicant: SONY CORP

Inventor： SATO MASANORI ,  SAITO KENGO ,  KOIZUMI OSAMU

IPC: G11B15/093 ,  G11B15/54 ,  G11B23/087

公开(公告)号：HK1014393A1

公开(公告)日：1999-09-24

申请号：HK98115679

申请日：1998-12-24

Applicant: SONY CORP

Inventor： KOIZUMI OSAMU ,  SAITO KENGO ,  SASAKI KAZUO ,  ITABASHI MASAYUKI

IPC: G11B23/087 ,  G11B

Abstract: A tape cassette comprises a supply and a take-up reel on which tape is wound, a cassette casing for rotatably enclosing the reels therein, a plurality of tape guide pins, each being press-fitted through the inner wall of the casing, for defining a tape path for the tape travelling between the pair of reels. The press-fit section of each guide pin is formed in a predetermined taper in such a manner as to gradually decrease its outer diameter towards its end. The straight press-fit section of the guide pin is formed in such a manner as to include a predetermined geometry of chamfered circumference at its end. In a tape guide pin used in conjunction with a tape guide roller, grease having a predetermined viscosity coefficient is disposed between the associated pin and roller. An electrical insulating cover is provided for surrounding the exposed underside of the electrically conductive lower half of the casing.

公开(公告)号：SG43409A1

公开(公告)日：1997-10-17

申请号：SG1996010684

申请日：1996-09-23

Applicant: SONY CORP

Inventor： SAITO KENGO ,  NAKASHIMA IKUSHI ,  KOIZUMI OSAMU ,  TAKAHASHI YUJI

IPC: G11B23/033 ,  G11B23/00 ,  G11B23/03

公开(公告)号：HK1021865A1

公开(公告)日：2000-07-07

申请号：HK99105796

申请日：1998-12-24

Applicant: SONY CORP

Inventor： SASAKI KAZUO ,  SAITO KENGO ,  ITABASHI MASAYUKI ,  KOIZUMI OSAMU

IPC: G11B23/087 ,  G11B

Abstract: A tape cassette comprises a supply and a take-up reel on which tape is wound, a cassette casing for rotatably enclosing the reels therein, a plurality of tape guide pins, each being press-fitted through the inner wall of the casing, for defining a tape path for the tape travelling between the pair of reels. The press-fit section of each guide pin is formed in a predetermined taper in such a manner as to gradually decrease its outer diameter towards its end. The straight press-fit section of the guide pin is formed in such a manner as to include a predetermined geometry of chamfered circumference at its end. In a tape guide pin used in conjunction with a tape guide roller, grease having a predetermined viscosity coefficient is disposed between the associated pin and roller. An electrical insulating cover is provided for surrounding the exposed underside of the electrically conductive lower half of the casing.

公开(公告)号：DE68928930D1

公开(公告)日：1999-03-25

申请号：DE68928930

申请日：1989-12-12

Applicant: SONY CORP

Inventor： KOIZUMI OSAMU ,  SASAKI KAZUO ,  SAITO KENGO ,  ITABASHI MASAYUKI

IPC: G11B23/087

Abstract: A tape cassette comprises a supply and a take-up reel on which tape is wound, a cassette casing for rotatably enclosing the reels therein, a plurality of tape guide pins, each being press-fitted through the inner wall of the casing, for defining a tape path for the tape travelling between the pair of reels. The press-fit section of each guide pin is formed in a predetermined taper in such a manner as to gradually decrease its outer diameter towards its end. The straight press-fit section of the guide pin is formed in such a manner as to include a predetermined geometry of chamfered circumference at its end. In a tape guide pin used in conjunction with a tape guide roller, grease having a predetermined viscosity coefficient is disposed between the associated pin and roller. An electrical insulating cover is provided for surrounding the exposed underside of the electrically conductive lower half of the casing.

公开(公告)号：NO964907L

公开(公告)日：1997-05-21

申请号：NO964907

申请日：1996-11-19

Applicant: SONY CORP

Inventor： SAITO KENGO ,  NAKASHIMA IKUSHI ,  KANO TOSHIO ,  SATO TAKASHI ,  MASUGI SHINJI

IPC: G11B15/62 ,  G11B15/64 ,  G11B23/50 ,  G11B5/48 ,  G11B5/127 ,  G11B15/60

Abstract: A recording and playback device utilizing magnetic tape, such as a tape cassette, as a recording medium includes a magnetic head arranged to contact one side of the magnetic tape and a stabilizer arranged positioned directly opposed the magnetic head corresponding to the opposite side of the magnetic tape such that the magnetic tape move along a path interposed between the stabilizer and the magnetic head. The stabilizer includes a tape slider surface in contact with the side of the tape opposite the magnetic head contacting side. Further, the tape slider surface of the stabilizer may be formed with a recessed portion and tape surface scraper portions. According to this structure vibration of the magnetic tape in the vicinity of the magnetic head is greatly reduced such that a head servo for control of the magnetic head may accurately position the magnetic head even in devices utilizing a very small track pitch. Also read/write error, tape dropout, and the like, due to foreign matter entering the tape path, is reliably prevented. Further, space between the magnetic tape and the head is reduced and contact pressure between the head and the tape is maintained to optimize recording and or playback operations between the head and the magnetic tape.