Inventor · disambiguated record
Kazutoshi Ashikawa
Also filed as: ASHIKAWA KAZUTOSHI
8 granted patents·161 citations·filing 1982–2002
88Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0182US4492974ADMOS With gate protection diode formed over base regionHITACHI LTD·Filed 1982·Granted Jan 8, 1985·36 cites·15 claims
- 0280US4831424AInsulated gate semiconductor device with back-to-back diodesHITACHI LTD·Filed 1987·Granted May 16, 1989·36 cites·14 claims
- 0378US5774470ADigital signal processor, error detection method, and recording medium reproducerHITACHI LTD·Filed 1995·Granted Jun 30, 1998·34 cites·12 claims
- 0458US5553104AInformation recording/reproducing apparatus having a clock timing extraction circuit for extracting a clock signal from an input data signalHITACHI LTD·Filed 1994·Granted Sep 3, 1996·20 cites·12 claims
- 0555US6700721B2Magnetic recording and reproducing apparatus and semiconductor integrated circuit for use in the same comprising a read/write signal processor having an interleave write data generatorHITACHI LTD·Filed 2002·Granted Mar 2, 2004·2 cites·11 claims
- 0653US5867333AData recording and reproducing apparatus and phase locked loop circuit for use therein including D/A converters acting as charge pumps and a reference voltage sourceHITACHI LTD·Filed 1995·Granted Feb 2, 1999·18 cites·10 claims
- 0746US6452736B1Magnetic recording and reproducing apparatus and a read/write amplifier having a signal transmission system with high speed of data write signalHITACHI LTD·Filed 1995·Granted Sep 17, 2002·6 cites·8 claims
- 0845US4688323AMethod for fabricating vertical MOSFETsHITACHI LTD·Filed 1985·Granted Aug 25, 1987·9 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →