Inventor
ASHIKAWA KAZUTOSHI
JP8 patents
Patents
8 patentsUS5774470AJun 30, 1998
Digital signal processor, error detection method, and recording medium reproducer
HITACHI LTD34 citations92
US5553104ASep 3, 1996
Information recording/reproducing apparatus having a clock timing extraction circuit for extracting a clock signal from an input data signal
HITACHI LTD20 citations92
US4831424AMay 16, 1989
Insulated gate semiconductor device with back-to-back diodes
HITACHI LTD36 citations92
US4492974AJan 8, 1985
DMOS With gate protection diode formed over base region
HITACHI LTD36 citations92
US5867333AFeb 2, 1999
Data recording and reproducing apparatus and phase locked loop circuit for use therein including D/A converters acting as charge pumps and a reference voltage source
HITACHI LTD18 citations83
US6452736B1Sep 17, 2002
Magnetic recording and reproducing apparatus and a read/write amplifier having a signal transmission system with high speed of data write signal
HITACHI LTD6 citations73
US4688323AAug 25, 1987
Method for fabricating vertical MOSFETs
HITACHI LTD9 citations73
US6700721B2Mar 2, 2004
Magnetic recording and reproducing apparatus and semiconductor integrated circuit for use in the same comprising a read/write signal processor having an interleave write data generator
HITACHI LTD2 citations62