Inventor · disambiguated record
Yuuji Ishida
Also filed as: ISHIDA YUUJI
12 granted patents·2 pending applications·200 citations·filing 2000–2021
90Inventor score
Files withHITACHI LTD5SUMITOMO HEAVY INDUSTRIES ION TECH CO LTD3KYOCERA CORP2FUJITSU LTD1HITACHI AUTOMOTIVE SYSTEMS LTD1
Top patents by PatentIndex Score
14 records- 0191US11978608B2Ion generation device and ion generation methodSUMITOMO HEAVY INDUSTRIES ION TECH CO LTD·Filed 2021·Granted May 7, 2024·2 cites·15 claims
- 0291US11309112B2Solenoid valve drive deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Apr 19, 2022·8 cites·10 claims
- 0391US7068637B2Base station and mobile communication systemHITACHI LTD·Filed 2001·Granted Jun 27, 2006·55 cites·11 claims
- 0488US6615030B1Mobile communications system and radio base station apparatusHITACHI LTD·Filed 2000·Granted Sep 2, 2003·43 cites·14 claims
- 0586US6879845B2Wireless communication method and system using beam direction-variable antennaHITACHI LTD·Filed 2001·Granted Apr 12, 2005·47 cites·13 claims
- 0680US10497546B2Insulating structureSUMITOMO HEAVY INDUSTRIES ION TECH CO LTD·Filed 2018·Granted Dec 3, 2019·2 cites·16 claims
- 0780US10154363B2Electronic apparatus and sound output control methodKYOCERA CORP·Filed 2016·Granted Dec 11, 2018·4 cites·20 claims
- 0879US6834197B2Base station apparatus, mobile communication system, and method of controlling transmission powerHITACHI LTD·Filed 2000·Granted Dec 21, 2004·30 cites·9 claims
- 0959US8124926B2Key device and electronic device comprising the sameISHIDA YUUJI·Filed 2009·Granted Feb 28, 2012·4 cites·12 claims
- 1057US12221689B2Insulating structure, method for manufacturing insulating structure, ion generation device, and ion implanterSUMITOMO HEAVY INDUSTRIES ION TECH CO LTD·Filed 2021·Granted Feb 11, 2025·0 cites·11 claims
- 1157US6895038B2Communication systemKDDI CORP·Filed 2001·Granted May 17, 2005·5 cites·4 claims
- 1248US2010070467A1Database management computer productFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1345US2006113143A1Acoustic deviceKYOCERA CORP·Filed 2005·Application pending·0 cites
- 1442US9031144B2Peak factor reduction device and wireless transmitterHITACHI LTD·Filed 2014·Granted May 12, 2015·0 cites·9 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →