Inventor · disambiguated record
Koji Tsutsumi
Also filed as: TSUTSUMI KOJI
29 granted patents·3 pending applications·415 citations·filing 1995–2024
96Inventor score
Top patents by PatentIndex Score
32 records- 0195US5963000AObject sensor system for automatic swing doorNABCO LTD·Filed 1997·Granted Oct 5, 1999·135 cites·33 claims
- 0291US7926331B2Detection of fuel property based on change in rotational speed of engineDENSO CORP·Filed 2009·Granted Apr 19, 2011·23 cites·40 claims
- 0385US10659062B2PLL circuitMITSUBISHI ELECTRIC CORP·Filed 2016·Granted May 19, 2020·6 cites·3 claims
- 0482US11841457B2Radar device, control circuit of radar device, and storage medium of radar deviceMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Dec 12, 2023·1 cites·19 claims
- 0582US5828302ADoor sensor with self-diagnosing functionFiled 1997·Granted Oct 27, 1998·59 cites·29 claims
- 0680US10425062B2Polyphase filter and filter circuitMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Sep 24, 2019·4 cites·3 claims
- 0778US8074503B2Fuel property sensing deviceTSUTSUMI KOJI·Filed 2009·Granted Dec 13, 2011·13 cites·15 claims
- 0876US10461756B2PLL circuitMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Oct 29, 2019·4 cites·5 claims
- 0974US5583405AAutomatic door opening and closing systemNABCO LTD·Filed 1995·Granted Dec 10, 1996·93 cites·10 claims
- 1069US10411714B2Variable frequency dividerMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Sep 10, 2019·3 cites·5 claims
- 1168US7111740B2Sorting apparatus, sorting method and alignment apparatusDAIICHI JITSUGYO VISWILL CO LT·Filed 2003·Granted Sep 26, 2006·20 cites·9 claims
- 1264US7553110B2Conveying equipment and inspection deviceDAIICHI JITSUGYO VISWILL CO LT·Filed 2003·Granted Jun 30, 2009·15 cites·9 claims
- 1360US6886683B1Conveying apparatus, inspecting apparatus and aligningly and supplying apparatusKANEBO LTD·Filed 2000·Granted May 3, 2005·14 cites·38 claims
- 1460US2025030405A1Variable attenuatorMITSUBISHI ELECTRIC CORP·Filed 2024·Application pending·0 cites
- 1558US8027781B2Internal combustion engine control device and internal combustion engine control systemDENSO CORP·Filed 2009·Granted Sep 27, 2011·4 cites·12 claims
- 1656US11757454B2Delay synchronization circuit, clock transmission circuit, and clock transmission and reception circuitMITSUBISHI ELECTRIC CORP·Filed 2022·Granted Sep 12, 2023·0 cites·17 claims
- 1756US10585169B2Signal generating circuitMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Mar 10, 2020·1 cites·13 claims
- 1855US2022349992A1Radar deviceMITSUBISHI ELECTRIC CORP·Filed 2022·Application pending·0 cites
- 1953US10581395B2Variable gain amplifierMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Mar 3, 2020·1 cites·8 claims
- 2051US11949394B2Phase shifter and antenna deviceMITSUBISHI ELECTRIC CORP·Filed 2022·Granted Apr 2, 2024·0 cites·18 claims
- 2150US11929723B2Phase-variable frequency multiplier and antenna deviceMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Mar 12, 2024·0 cites·13 claims
- 2250US5739523AObject sensor system for doorsNABCO LTD·Filed 1995·Granted Apr 14, 1998·19 cites·17 claims
- 2348US2025055465A1Phase comparator and pll circuitMITSUBISHI ELECTRIC CORP·Filed 2024·Application pending·0 cites
- 2447US11502656B2Variable gain amplifierMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Nov 15, 2022·0 cites·3 claims
- 2544US9614498B2Active balun circuit and transformerMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Apr 4, 2017·0 cites·14 claims
- 2642US11283455B2Lock detection circuit and phase-locked loop circuitMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Mar 22, 2022·0 cites·9 claims
- 2741US11870447B2Phase synchronization deviceMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Jan 9, 2024·0 cites·20 claims
- 2841US11043955B2PLL circuitMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Jun 22, 2021·0 cites·7 claims
- 2939US10530338B2Phase shift precision calibration circuitry, vector sum phase shifter, and wireless communication deviceMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Jan 7, 2020·0 cites·4 claims
- 3037US11088698B2Phase-locked loop circuitMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Aug 10, 2021·0 cites·13 claims
- 3135US11088697B2PLL circuitMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Aug 10, 2021·0 cites·4 claims
- 3234US11005429B2Current amplifierMITSUBISHI ELECTRIC CORP·Filed 2017·Granted May 11, 2021·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Koji Tsutsumi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →