Abstract: A tape winding apparatus includes: a rotating device configured to rotate a wind-up core for winding a tape into a roll which defines a tape roll; a push roller configured to be pressed against the tape roll, the push roller contacting with and rolling on an outer periphery of the tape roll at a tape feeding position where the tape is fed onto the tape roll; a feeding direction control guide arranged upstream from the push roller as viewed in a running direction of the tape and configured to control a tape-feeding direction of the tape that is fed onto the tape roll; and a movement device configured to move at least one of the push roller and the feeding direction control guide such that the tape-feeding direction conforms with a tangential direction of the tape roll at the tape feeding position.

Abstract: A tape winding apparatus includes: a rotating device configured to rotate a wind-up core for winding a tape into a roll which defines a tape roll; a push roller configured to be pressed against the tape roll, the push roller contacting with and rolling on an outer periphery of the tape roll at a tape feeding position where the tape is fed onto the tape roll; a feeding direction control guide arranged upstream from the push roller as viewed in a running direction of the tape and configured to control a tape-feeding direction of the tape that is fed onto the tape roll; and a movement device configured to move at least one of the push roller and the feeding direction control guide such that the tape-feeding direction conforms with a tangential direction of the tape roll at the tape feeding position.

Abstract: A tape winding apparatus includes: a rotating device configured to rotate a wind-up core for winding a tape into a roll which defines a tape roll; a push roller configured to be pressed against the tape roll, the push roller contacting with and rolling on an outer periphery of the tape roll at a tape feeding position where the tape is fed onto the tape roll; a feeding direction control guide arranged upstream from the push roller as viewed in a running direction of the tape and configured to control a tape-feeding direction of the tape that is fed onto the tape roll; and a movement device configured to move at least one of the push roller and the feeding direction control guide such that the tape-feeding direction conforms with a tangential direction of the tape roll at the tape feeding position.

Abstract: A tape winding apparatus includes: a rotating device configured to rotate a wind-up core for winding a tape into a roll which defines a tape roll; a push roller configured to be pressed against the tape roll, the push roller contacting with and rolling on an outer periphery of the tape roll at a tape feeding position where the tape is fed onto the tape roll; a feeding direction control guide arranged upstream from the push roller as viewed in a running direction of the tape and configured to control a tape-feeding direction of the tape that is fed onto the tape roll; and a movement device configured to move at least one of the push roller and the feeding direction control guide such that the tape-feeding direction conforms with a tangential direction of the tape roll at the tape feeding position.

Abstract: Disclosed are a servo writer and a servo writing method capable of writing a servo signal onto a servo band of a magnetic tape in an excellent condition, regardless of the thickness of the magnetic tape. The servo writer includes a magnetic tape traveling system for traveling a magnetic tape, a DC erase head for magnetizing a servo band of the magnetic tape in one direction along the length of the magnetic tape, a servo signal write head for writing a servo signal onto the servo band in the direction opposite to the one direction, a servo signal read head for reading the servo signal from the servo band, and control device for controlling a degauss current supplied to the DC erase head, based on an output read from the servo signal by the servo signal read head.

Abstract: A tape winding apparatus includes: a rotating device configured to rotate a wind-up core for winding a tape into a roll which defines a tape roll; a push roller configured to be pressed against the tape roll, the push roller contacting with and rolling on an outer periphery of the tape roll at a tape feeding position where the tape is fed onto the tape roll; a feeding direction control guide arranged upstream from the push roller as viewed in a running direction of the tape and configured to control a tape-feeding direction of the tape that is fed onto the tape roll; and a movement device configured to move at least one of the push roller and the feeding direction control guide such that the tape-feeding direction conforms with a tangential direction of the tape roll at the tape feeding position.

Abstract: A magnetic head assembly to record servo signals, that serves for positioning of data recording magnetic heads and data reproducing magnetic heads, on magnetic tapes includes a servo signal recording head of which sliding surface has a magnetic gap embedded thereon in order to record the servo signals onto a magnetic tape and guide blocks which are set adjacent to at least one of the up-stream position or the down-stream position of a line of magnetic tape passing the servo signal recording head and are slightly set back from the sliding surface of the recording head so that said magnetic tape slides an edge of the servo signal recording head and an edge of the guide block.

Abstract: A method for inspecting a head unit moving device is characterized by having the steps of running a inspection use tape in which a servo signal is written displaced in a width direction of a magnetic tape at a predetermined frequency and amplitude; measuring a position of a head unit practically moved in a width direction of the inspection use tape in response to the servo signal; and calculating a difference between the position and a position to be instructed so as to move the head unit in response to the servo signal, wherein the head unit moving device moves the head unit with a servo signal reading head, a data signal recording head, and a data signal reproducing head in the width direction of the magnetic tape in response to the servo signal read from the magnetic tape by the servo signal reading head.

Abstract: Data for specifying servo bands SB1 to SB5 is embedded in each servo signal S1 to S5 that is written on a plurality of servo bands SB1 to SB5 formed on a magnetic tape MT.

Abstract: Disclosed is a servo writer which forms servo bands on information recording media so as to enable a drive to track the servo bands with great accuracy by using a recording/reproducing head. The servo writer includes a driving mechanism for running a tape-shaped information recording medium, a servo pattern writing means for writing servo patterns on the running tape-shaped information recording medium, thereby forming servo bands thereon, and a tape edge forming mechanism for cutting evenly an edge of the running tape-shaped information recording medium, so that the edge becomes parallel to the servo bands.

Abstract: A servo write head assembly comprises an AC demagnetizing head that slides in contact with a magnetic tape all of which surface is magnetized in one direction of longitudinal directions thereof, and demagnetizes a data band of the magnetic tape; a servo write head that slides in contact with the magnetic tape, magnetizes a servo band of the magnetic tape in a reverse direction, and writes a servo signal; and a guide for regulating a movement in lateral directions of the magnetic tape that is running, wherein the AC demagnetizing head and the servo write head are integrally configured and the guide is provided between the AC demagnetizing head and the servo write head.

Abstract: A servo write head assembly comprises an AC demagnetizing head that slides in contact with a magnetic tape all of which surface is magnetized in one direction of longitudinal directions thereof, and demagnetizes a data band of the magnetic tape; a servo write head that slides in contact with the magnetic tape, magnetizes a servo band of the magnetic tape in a reverse direction, and writes a servo signal; and a guide for regulating a movement in lateral directions of the magnetic tape that is running, wherein the AC demagnetizing head and the servo write head are integrally configured and the guide is provided between the AC demagnetizing head and the servo write head.

Abstract: Disclosed is a magnetic tape transport system which has multiple magnetic heads arranged parallel to each other that a magnetic tape slides in contact with, and which has a structure to prevent a decrease in contact pressure between the magnetic tape and the magnetic heads. The magnetic tape transport system includes a supply reel for feeding the magnetic tape, a take-up reel for winding the magnetic tape fed from the supply reel, a plurality of magnetic heads being arranged parallel to each other, a partition plate for dividing a space between the magnetic heads into an air space and a close-tape space, a negative pressure generation means for setting a pressure in the air space to be lower than that in the close-tape space, and a communicating path for allowing the air space and the close-tape space to communicate with each other.

Abstract: Disclosed are a magnetic tape capable of suppressing deterioration of the S/N ratio of the data and servo signals and adapted to high density recording design, and a servo writer capable of producing the above magnetic tape. Further, the magnetic tape includes a DC-magnetized DC written region, a servo signal being written onto the DC written region, and a data track. Here, the DC written region and the servo signal are formed to satisfy a relationship ?1.5×Tw?Fd?1.5×Tw, where Fd denotes a position of an end of the DC written region with respect to an end of the servo signal, and Tw denotes a width of the data track.

Abstract: A servo write head assembly comprises an AC demagnetizing head that slides in contact with a magnetic tape all of which surface is magnetized in one direction of longitudinal directions thereof, and demagnetizes a data band of the magnetic tape; a servo write head that slides in contact with the magnetic tape, magnetizes a servo band of the magnetic tape in a reverse direction, and writes a servo signal; and a guide for regulating a movement in lateral directions of the magnetic tape that is running, wherein the AC demagnetizing head and the servo write head are integrally configured and the guide is provided between the AC demagnetizing head and the servo write head.

Abstract: A recording medium cartridge is provided with a cartridge medium and cartridge memory in a cartridge case composed by being divided into two halves, in which the cartridge memory has a fragile part partially formed therein, one side bordered on the fragile part is firmly fixed to one of the two halves, and the other side is firmly fixed to the other of the two halves.

Abstract: Disclosed is a servo writer which forms servo bands on information recording media so as to enable a drive to track the servo bands with great accuracy by using a recording/reproducing head. The servo writer includes a driving mechanism for running a tape-shaped information recording medium, a servo pattern writing means for writing servo patterns on the running tape-shaped information recording medium, thereby forming servo bands thereon, and a tape edge forming mechanism for cutting evenly an edge of the running tape-shaped information recording medium, so that the edge becomes parallel to the servo bands.

Abstract: Disclosed is a magnetic tape transport system which has multiple magnetic heads arranged parallel to each other that a magnetic tape slides in contact with, and which has a structure to prevent a decrease in contact pressure between the magnetic tape and the magnetic heads. The magnetic tape transport system includes a supply reel for feeding the magnetic tape, a take-up reel for winding the magnetic tape fed from the supply reel, a plurality of magnetic heads being arranged parallel to each other, a partition plate for dividing a space between the magnetic heads into an air space and a close-tape space, a negative pressure generation means for setting a pressure in the air space to be lower than that in the close-tape space, and a communicating path for allowing the air space and the close-tape space to communicate with each other.

Abstract: A servo writer which writes a servo mend on a tape by the write head is characterized by being equipped with a pay-off side motor paying off the tape from tie payoff reel by rotating the pay-off reel; a winding side motor winding the tape on the winding reel by rotating the winding reel; a first capstan roller and second capstan roller which are provided at an upstream side and down stream side of the write head, respectively, and by rotating the capstan rollers, run the tape in a state pinched between respective pinch rollers and the capstan rollers; a first tension detector which is provided between the first capstan roller and second capstan roller and detects running tape tension; and a capstan roller controlling unit controlling a rotation speed of the first capstan roller and second capstan roller so that tension detected by the tension detector becomes constant.

Abstract: Disclosed are a magnetic tape capable of suppressing deterioration of the S/N ratio of the data and servo signals and adapted to high density recording design, and a servo writer capable of producing the above magnetic tape. Further, the magnetic tape includes a DC-magnetized DC written region, a servo signal being written onto the DC written region, and a data track. Here, the DC written region and the servo signal are formed to satisfy a relationship ?1.5×Tw?Fd?1.5×Tw, where Fd denotes a position of an end of the DC written region with respect to an end of the servo signal, and Tw denotes a width of the data track.