Inventor · disambiguated record
Masayoshi Nakagawa
Also filed as: NAKAGAWA MASAYOSHI
24 granted patents·3 pending applications·246 citations·filing 1992–2024
95Inventor score
Top patents by PatentIndex Score
27 records- 0196US7499246B2Magnetic head deviceTDK CORP·Filed 2005·Granted Mar 3, 2009·43 cites·19 claims
- 0289US8201406B2Control apparatus for internal combustion engineKOGO TOMOYUKI·Filed 2008·Granted Jun 19, 2012·21 cites·16 claims
- 0384US6791783B2Magnetic head device with microactuator fine motion device having electrode section molded out of resinALPS ELECTRIC CO LTD·Filed 2002·Granted Sep 14, 2004·19 cites·31 claims
- 0480US7167344B2Magnetic head actuator having finely movable tracking deviceALPS ELECTRIC CO LTD·Filed 2002·Granted Jan 23, 2007·31 cites·20 claims
- 0578US11281019B2Lens driving deviceALPS ALPINE CO LTD·Filed 2019·Granted Mar 22, 2022·3 cites·7 claims
- 0674USD630666SLens for light communicationALPS ELECTRIC CO LTD·Filed 2008·Granted Jan 11, 2011·19 cites·1 claims
- 0774US6469852B1Disk on which servo pattern is recorded and arithmetic processing method for servo pattern read from the diskALPS ELECTRIC CO LTD·Filed 1999·Granted Oct 22, 2002·27 cites·7 claims
- 0874US6154330ADisk provided with servo patterns and method of recording servo patternsALPS ELECTRIC CO LTD·Filed 1998·Granted Nov 28, 2000·25 cites·5 claims
- 0972US8336296B2Exhaust gas purification system for internal combustion engineNAKATANI KOICHIRO·Filed 2008·Granted Dec 25, 2012·6 cites·7 claims
- 1068US6577464B2Magnetic recording device having first actuator for coarse adjustment and second actuator for fine adjustmentALPS ELECTRIC CO LTD·Filed 2001·Granted Jun 10, 2003·7 cites·12 claims
- 1166US6987649B2Magnetic head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the sameALPS ELECTRIC CO LTD·Filed 2001·Granted Jan 17, 2006·5 cites·8 claims
- 1256US11333108B2Cooling system for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2021·Granted May 17, 2022·0 cites·6 claims
- 1356US9810165B2Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2014·Granted Nov 7, 2017·0 cites·9 claims
- 1455US7423846B2Magnetic-head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the sameTDK CORP·Filed 2005·Granted Sep 9, 2008·0 cites·12 claims
- 1553US12258927B1Internal combustion engine control deviceTOYOTA MOTOR CO LTD·Filed 2024·Granted Mar 25, 2025·0 cites·4 claims
- 1653US10221813B2Control device and control method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Mar 5, 2019·0 cites·7 claims
- 1750US6707645B2Microactuator-mounted magnetic head device with control conductive patternALPS ELECTRIC CO LTD·Filed 2001·Granted Mar 16, 2004·1 cites·9 claims
- 1849US5966259AMagnetic recording medium formed in a plurality of tracks and magnetic recording-reproducing apparatus for the sameALPS ELECTRIC CO LTD·Filed 1997·Granted Oct 12, 1999·9 cites·5 claims
- 1948US10753317B2EGR control deviceTOYOTA MOTOR CO LTD·Filed 2018·Granted Aug 25, 2020·0 cites·5 claims
- 2047US5411605ASoft magnetic steel material having excellent DC magnetization properties and corrosion resistance and a method of manufacturing the sameNIPPON KOKAN KK·Filed 1992·Granted May 2, 1995·10 cites·6 claims
- 2146US6971155B2Method of manufacturing a magnetic headALPS ELECTRIC CO LTD·Filed 2002·Granted Dec 6, 2005·2 cites·9 claims
- 2245US5963391AServo information writing systemALPS ELECTRIC CO LTD·Filed 1997·Granted Oct 5, 1999·6 cites·2 claims
- 2339US6218750B1Driving device for polyphase motorALPS ELECTRIC CO LTD·Filed 1999·Granted Apr 17, 2001·9 cites·8 claims
- 2439US2012279328A1Human-powered device using two levers and human-powered vehicle provided with aforementioned deviceNAKAGAWA TOKIO·Filed 2010·Application pending·0 cites
- 2539US2012002297A1Collimator lensKAMEDA HIROSHI·Filed 2011·Application pending·0 cites
- 2639US2006221501A1Slider, magnetic head assembly and manufacturing the sameALPS ELECTRIC CO LTD·Filed 2006·Application pending·0 cites
- 2736US6317295B1Adjustment apparatus for magnetic head deviceALPS ELECTRIC CO LTD·Filed 1999·Granted Nov 13, 2001·3 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →