Inventor · disambiguated record
Koichi Sugiyama
Also filed as: IGARASHI JUN · SUGIYAMA KOICHI
89 granted patents·39 pending applications·1,353 citations·filing 1974–2025
99Inventor score
Top patents by PatentIndex Score
128 records- 0198US7319579B2Snubber circuitTOSHIBA KK·Filed 2005·Granted Jan 15, 2008·73 cites·16 claims
- 0295US6566691B1Semiconductor device with trench gate having structure to promote conductivity modulationTOSHIBA KK·Filed 2000·Granted May 20, 2003·86 cites·14 claims
- 0394US8319314B2Semiconductor deviceOGURA TSUNEO·Filed 2011·Granted Nov 27, 2012·19 cites·13 claims
- 0492US7800168B2Power semiconductor deviceTOSHIBA KK·Filed 2007·Granted Sep 21, 2010·17 cites·9 claims
- 0591US5611028AImage processing method and system for coloring an image with groups of colors which produce a desired impressionFUJI PHOTO FILM CO LTD·Filed 1994·Granted Mar 11, 1997·185 cites·7 claims
- 0690US5500657AAir-bubble detection apparatus of ink jet recording head, and method and apparatus for restoring ink jet recording headALPS ELECTRIC CO LTD·Filed 1992·Granted Mar 19, 1996·106 cites·6 claims
- 0789US5923486ARecording and reproducing system for protecting copyrighted dataSONY CORP·Filed 1995·Granted Jul 13, 1999·61 cites·6 claims
- 0888US6437933B1Recording medium for protecting copyrighted dataSONY CORP·Filed 1997·Granted Aug 20, 2002·58 cites·18 claims
- 0988US6170864B1Activation control apparatus for passive vehicle occupant restraint and method of controlling activation of passive vehicle occupant restraintTOYOTA MOTOR CO LTD·Filed 1997·Granted Jan 9, 2001·66 cites·51 claims
- 1088US5446391ADielectric detecting deviceAISIN SEIKI·Filed 1993·Granted Aug 29, 1995·82 cites·8 claims
- 1187US7265927B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2003·Granted Sep 4, 2007·11 cites·23 claims
- 1286US10496226B2Optical sensing unit and touch panel device including the sameSHARP KK·Filed 2015·Granted Dec 3, 2019·5 cites·14 claims
- 1385US7772641B2Power semiconductor device with a plurality of gate electrodesTOSHIBA KK·Filed 2007·Granted Aug 10, 2010·15 cites·8 claims
- 1485US7456487B2Semiconductor deviceTOSHIBA KK·Filed 2004·Granted Nov 25, 2008·28 cites·6 claims
- 1585US6687076B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2001·Granted Feb 3, 2004·9 cites·4 claims
- 1684US11315095B2Electronic receipt management systemTOSHIBA TEC KK·Filed 2019·Granted Apr 26, 2022·2 cites·14 claims
- 1784US7268390B2Power semiconductor deviceTOSHIBA KK·Filed 2005·Granted Sep 11, 2007·9 cites·20 claims
- 1883US6744588B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2003·Granted Jun 1, 2004·11 cites·29 claims
- 1981US6891224B2Semiconductor deviceTOSHIBA KK·Filed 2003·Granted May 10, 2005·22 cites·9 claims
- 2080US7639061B2Semiconductor device and capacitance regulation circuitTOSHIBA KK·Filed 2006·Granted Dec 29, 2009·8 cites·9 claims
- 2179US7359137B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2007·Granted Apr 15, 2008·2 cites·18 claims
- 2279US7277248B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2006·Granted Oct 2, 2007·2 cites·6 claims
- 2378US12198121B2Electronic receipt management systemTOSHIBA TEC KK·Filed 2023·Granted Jan 14, 2025·0 cites·9 claims
- 2478US6347268B1Activation control apparatus for passive vehicle occupant restraint and method of controlling activation of passive vehicle occupant restraintTOYOTA MOTOR CO LTD·Filed 2000·Granted Feb 12, 2002·25 cites·92 claims
- 2578US5815631AApparatus and method for controlling an audio video systemsSONY CORP·Filed 1995·Granted Sep 29, 1998·60 cites·10 claims
- 2676US6747295B2Semiconductor device with trench gateTOSHIBA KK·Filed 2003·Granted Jun 8, 2004·19 cites·7 claims
- 2775US6894860B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2003·Granted May 17, 2005·4 cites·88 claims
- 2874US6800909B2Semiconductor device and method of manufacturing the sameFUJITSU LTD·Filed 2002·Granted Oct 5, 2004·16 cites·6 claims
- 2974US6323717B1Semiconductor device, drive method, and drive apparatusTOSHIBA KK·Filed 1999·Granted Nov 27, 2001·46 cites·21 claims
- 3073US12282906B2Transaction data processing apparatus connected to an external device for data communicationTOSHIBA TEC KK·Filed 2022·Granted Apr 22, 2025·0 cites·14 claims
- 3173US8208073B2Display device, display method, supply device, supply method, storage medium, and control system for controlling the display of information provided from a supply deviceSUGIYAMA KOICHI·Filed 2008·Granted Jun 26, 2012·3 cites·14 claims
- 3272US9099042B2Display apparatusSUGIYAMA KOICHI·Filed 2011·Granted Aug 4, 2015·3 cites·24 claims
- 3372US7781869B2Semiconductor device having rectifying actionTOSHIBA KK·Filed 2006·Granted Aug 24, 2010·4 cites·14 claims
- 3471US6490113B2Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2001·Granted Dec 3, 2002·8 cites·25 claims
- 3571US6384441B1Semiconductor device and method of manufacturing the sameFUJITSU LTD·Filed 2000·Granted May 7, 2002·12 cites·13 claims
- 3671US2022215368A1Electronic receipt management systemTOSHIBA TEC KK·Filed 2022·Application pending·0 cites
- 3770US7819380B2Solenoid apparatus and injection valve using the sameDENSO CORP·Filed 2006·Granted Oct 26, 2010·5 cites·16 claims
- 3869US7303846B2Electrophotographic toner, process for producing the same, and process for forming imageFUJI XEROX CO LTD·Filed 2005·Granted Dec 4, 2007·3 cites·19 claims
- 3968US2019073649A1Transaction data processing apparatus connected to an external device for data communicationTOSHIBA TEC KK·Filed 2018·Application pending·0 cites
- 4067US2019026714A1Transaction data processing apparatus connected to an external device for data communicationTOSHIBA TEC KK·Filed 2018·Application pending·0 cites
- 4166US12271559B2Input detection apparatus, input detection method, and recording medium storing input detection program for detecting input position with respect to a display panelSHARP KK·Filed 2024·Granted Apr 8, 2025·0 cites·7 claims
- 4266US12141400B2Input detection device, input detection method, and recording medium recording an input detection program for accurately detecting an input position of an input operation on a display panelSHARP KK·Filed 2023·Granted Nov 12, 2024·0 cites·6 claims
- 4366US7976322B2Lever fitting type connectorYAZAKI CORP·Filed 2009·Granted Jul 12, 2011·9 cites·2 claims
- 4466US7459751B2Insulated gate semiconductor device with small feedback capacitance and manufacturing method thereofTOSHIBA KK·Filed 2005·Granted Dec 2, 2008·3 cites·14 claims
- 4566US6475858B2Method of manufacturing semiconductor deviceFUJITSU LTD·Filed 2002·Granted Nov 5, 2002·9 cites·11 claims
- 4665US7109128B2Semiconductor device and method of manufacturing the sameFUJITSU LTD·Filed 2004·Granted Sep 19, 2006·9 cites·14 claims
- 4765US6616073B2Fuel injection valveDENSO CORP·Filed 2002·Granted Sep 9, 2003·10 cites·10 claims
- 4864US6040598AHigh-breakdown-voltage semiconductor apparatusTOSHIBA KK·Filed 1998·Granted Mar 21, 2000·18 cites·12 claims
- 4963US6281569B1Pressure-contact semiconductor deviceTOSHIBA KK·Filed 1998·Granted Aug 28, 2001·29 cites·15 claims
- 5063US2013108243A1Recording medium and apparatus for protecting copyrighted digital dataSONY CORP·Filed 2012·Application pending·0 cites
Showing the top 50 of 128 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →