Inventor · disambiguated record
Toyoji Hiyokawa
Also filed as: HIYOKAWA TOYOJI
20 granted patents·5 pending applications·1,153 citations·filing 1995–2019
96Inventor score
Top patents by PatentIndex Score
25 records- 0192US5825306ANavigation system for vehiclesAISIN AW CO·Filed 1996·Granted Oct 20, 1998·177 cites·13 claims
- 0291US5774073ANavigation system for a vehicleAISIN AW CO·Filed 1995·Granted Jun 30, 1998·151 cites·7 claims
- 0389US5931888ANavigation system for vehicles with alternative route searching capabilitiesAISIN AW CO·Filed 1995·Granted Aug 3, 1999·244 cites·7 claims
- 0485US6034626ANavigation system for a vehicleAISIN AW CO·Filed 1997·Granted Mar 7, 2000·97 cites·7 claims
- 0578US6333702B1Navigation deviceAISIN AW CO·Filed 1996·Granted Dec 25, 2001·68 cites·19 claims
- 0678US6243646B1Vehicle navigation system with pixel transmission to displayAISIN AW CO·Filed 1999·Granted Jun 5, 2001·73 cites·9 claims
- 0774US6415225B1Navigation system and a memory mediumAISIN AW CO·Filed 2000·Granted Jul 2, 2002·44 cites·17 claims
- 0865US6424363B1Image display device, method of image display, and storage medium for storing image display programsAISIN AW CO·Filed 1999·Granted Jul 23, 2002·40 cites·22 claims
- 0965US5991689ANavigation system with switching between an ordinary road preferential mode and a tall road preferential modeAISIN AW CO·Filed 1997·Granted Nov 23, 1999·84 cites·19 claims
- 1063US10861332B2Communication terminal, server device, route retrieval system, and computer programAISIN AW CO·Filed 2017·Granted Dec 8, 2020·1 cites·8 claims
- 1163US8370061B2Navigation device and navigation road data creating deviceAISIN AW CO·Filed 2009·Granted Feb 5, 2013·3 cites·7 claims
- 1262US5793631AVoice route-guidance system and method having a function for judging approachment to a decision pointAISIN AW CO·Filed 1995·Granted Aug 11, 1998·66 cites·24 claims
- 1354US11161516B2Vehicle control deviceAISIN SEIKI·Filed 2019·Granted Nov 2, 2021·0 cites·8 claims
- 1453US6047235AVehicular navigation systemAISIN AW CO·Filed 1997·Granted Apr 4, 2000·85 cites·12 claims
- 1549US8180570B2Navigation apparatuses, methods, and programsHIYOKAWA TOYOJI·Filed 2008·Granted May 15, 2012·1 cites·20 claims
- 1646US8769237B2Map updating system and map updating program using dynamic cache memoryNIMURA MITSUHIRO·Filed 2009·Granted Jul 1, 2014·2 cites·16 claims
- 1745US10145698B2Route search system, route search method, and computer programAISIN AW CO·Filed 2015·Granted Dec 4, 2018·0 cites·13 claims
- 1845US6345230B1Vehicle navigation system and methodAISIN AW CO·Filed 1999·Granted Feb 5, 2002·17 cites·11 claims
- 1944US2006227349A1Systems, methods, and programs for rotating font data and map display systems, methods, and programs that display rotated font dataAISIN AW CO·Filed 2006·Application pending·0 cites
- 2043US2010235084A1On-board car navigation destination search device and on-board car navigation destination search methodAISIN AW CO·Filed 2009·Application pending·0 cites
- 2141US11237002B2Server device, communication terminal, route retrieval system, and computer programAISIN CORP·Filed 2017·Granted Feb 1, 2022·0 cites·12 claims
- 2241US2021180954A1Vehicle position estimation device and vehicle control deviceAISIN AW CO·Filed 2018·Application pending·0 cites
- 2340US10132638B2Route search system, route search method, and computer programAISIN AW CO·Filed 2015·Granted Nov 20, 2018·0 cites·7 claims
- 2439US2005234640A1Navigation apparatus, method, and programAISIN AW CO·Filed 2005·Application pending·0 cites
- 2539US2019186929A1Route searching device, route searching system, and computer programAISIN AW CO·Filed 2017·Application pending·0 cites
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