Inventor · disambiguated record
Eiji Takagi
Also filed as: TAKAGI EIJI
23 granted patents·6 pending applications·292 citations·filing 1989–2025
95Inventor score
Top patents by PatentIndex Score
29 records- 0196US11586040B2In-vehicle information display system and information display apparatusMAXELL LTD·Filed 2019·Granted Feb 21, 2023·9 cites·15 claims
- 0295US12038580B2In-vehicle information display system and information display apparatusMAXELL LTD·Filed 2022·Granted Jul 16, 2024·2 cites·20 claims
- 0384US5898909AUltra high frequency radio communication apparatusTOSHIBA KK·Filed 1996·Granted Apr 27, 1999·86 cites·22 claims
- 0483US12493183B2In-vehicle information display system and information display apparatusMAXELL LTD·Filed 2024·Granted Dec 9, 2025·0 cites·20 claims
- 0583US2025303857A1Light source apparatus, and information display system and head-up display apparatus using the sameMAXELL LTD·Filed 2025·Application pending·0 cites
- 0682US11577505B2Print head drive circuit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Feb 14, 2023·1 cites·24 claims
- 0780US6455880B1Microwave semiconductor device having coplanar waveguide and micro-strip lineTOSHIBA KK·Filed 1999·Granted Sep 24, 2002·70 cites·19 claims
- 0880US2025222767A1Information display system and vehicle information display system using the sameMAXELL LTD·Filed 2025·Application pending·0 cites
- 0975US2024092172A1Information display apparatus and spatial sensing apparatusMAXELL LTD·Filed 2023·Application pending·0 cites
- 1072US2025208211A1Abnormality detection deviceTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 1168US6903830B1Electronic printing apparatus with power saving mode and control method thereforSEIKO EPSON CORP·Filed 2000·Granted Jun 7, 2005·17 cites·11 claims
- 1267US12325302B2Light source apparatus, and information display system and head-up display apparatus using the sameMAXELL LTD·Filed 2020·Granted Jun 10, 2025·0 cites·13 claims
- 1366US5764119AWiring board for high-frequency signals and semiconductor module for high-frequency signals using the wiring boardTOSHIBA KK·Filed 1996·Granted Jun 9, 1998·26 cites·30 claims
- 1465US12286012B2Information display system and vehicle information display system using the sameMAXELL LTD·Filed 2020·Granted Apr 29, 2025·0 cites·22 claims
- 1565US5631809ASemiconductor device for ultrahigh frequency band and semiconductor apparatus including the semiconductor deviceTOSHIBA KK·Filed 1994·Granted May 20, 1997·35 cites·10 claims
- 1663US4994915AAperture correction circuitHITACHI LTD·Filed 1989·Granted Feb 19, 1991·20 cites·8 claims
- 1758US11878586B2Information display apparatus and spatial sensing apparatusMAXELL LTD·Filed 2018·Granted Jan 23, 2024·0 cites·8 claims
- 1852USD342330SFree access floor panelOM KIKI KK·Filed 1992·Granted Dec 14, 1993·7 cites·1 claims
- 1951US11685152B2Print head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Jun 27, 2023·0 cites·26 claims
- 2047US2023108540A1Vehicular information display system and information display systemMAXELL LTD·Filed 2021·Application pending·0 cites
- 2146US11207886B2Print head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Dec 28, 2021·0 cites·20 claims
- 2245US12038644B2Light source apparatus and information display system using the sameMAXELL LTD·Filed 2020·Granted Jul 16, 2024·0 cites·24 claims
- 2345US11880125B2Information display system having acute-angled diffusion characteristics and image light control film used for the sameMAXELL LTD·Filed 2020·Granted Jan 23, 2024·0 cites·4 claims
- 2445US11383523B2Print head drive circuit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Jul 12, 2022·0 cites·20 claims
- 2540US2004163848A1Printed wiring board and printed wiring board manufacturing methodSEIKO EPSON CORP·Filed 2003·Application pending·0 cites
- 2639US8285882B2Output apparatus, information processing apparatus, and network systemTAKAGI EIJI·Filed 2010·Granted Oct 9, 2012·0 cites·7 claims
- 2739US5870533AData receiving systemSEIKO EPSON CORP·Filed 1997·Granted Feb 9, 1999·10 cites·2 claims
- 2835US5745663AData receiving systemSEIKO EPSON CORP·Filed 1995·Granted Apr 28, 1998·6 cites·3 claims
- 2933US5493342AWhite balance correction circuitFiled 1993·Granted Feb 20, 1996·3 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →