Inventor

TSUNETA KATSUHIRO

JP24 patents

⚠️ This page may combine multiple inventors who share the name “TSUNETA KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TSUNETA KATSUHIRO

HITACHI LTD

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Method of and apparatus for recording on and reproducing from disk-type recording medium having recording tracks with sectors each having an ID area and a data area

Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic head

Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic head

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores

Disk apparatus and its control method

Recording/reproducing method and apparatus of magnetic disk unit in which playback commences before the magnetic head is completely centered on the track

Method and device for recording and reproducing data

Phase and period synchronization for a slave disk drive

Apparatus for positioning magnetic head and method of the same

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores

Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores

Information storing device and method for controlling same to record/reproduce information by selection one of working modes

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Head positioning device for use in magnetic disk equipment

Magnetic disk apparatus

Magnetic disk device with dummy write function

Magnetic disk device with dummy write function

HITACHI GLOBAL STORAGE TECH

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Information storing device and method for controlling same to record/reproduce information by selecting one of working modes

Adjusting clock frequency in a disk drive and a disk system using the same