Inventor · disambiguated record
Eiji Matsukawa
Also filed as: MATSUKAWA EIJI
10 granted patents·4 pending applications·187 citations·filing 1998–2025
87Inventor score
Top patents by PatentIndex Score
14 records- 0192US6489624B1Apparatus and methods for detecting thickness of a patterned layerNIKON CORP·Filed 1998·Granted Dec 3, 2002·115 cites·32 claims
- 0289US2025362571A1Imaging device including an imaging element, a mount, and membersNIKON CORP·Filed 2025·Application pending·0 cites
- 0385US11550206B2Light receiving apparatus with shock resistanceNIKON CORP·Filed 2019·Granted Jan 10, 2023·2 cites·8 claims
- 0481US2024219816A1Light receiving apparatusNIKON CORP·Filed 2024·Application pending·0 cites
- 0580US10237457B2Light receiving apparatus having body and exterior portion secured to mountNIKON CORP·Filed 2015·Granted Mar 19, 2019·2 cites·26 claims
- 0677US6323952B1Flatness measuring apparatusNIKON CORP·Filed 1999·Granted Nov 27, 2001·56 cites·9 claims
- 0777US2023161231A1Light receiving apparatusNIKON CORP·Filed 2022·Application pending·0 cites
- 0867US8445837B2Vibration actuator for rotating a rotating axle and image capturing apparatusMATSUKAWA EIJI·Filed 2010·Granted May 21, 2013·3 cites·28 claims
- 0965US10305397B2Vibration actuator unit, stage apparatus, and optical apparatusNIKON CORP·Filed 2014·Granted May 28, 2019·1 cites·10 claims
- 1059US8873172B2Linear motor and lens unitTANAKA TOSHIHISA·Filed 2011·Granted Oct 28, 2014·1 cites·16 claims
- 1158US7481945B2Polishing progress monitoring method and device thereof, polishing device, semiconductor device production method, and semiconductor deviceNIKON CORP·Filed 2001·Granted Jan 27, 2009·7 cites·16 claims
- 1243US8344591B2Vibration actuator and imaging deviceNIKON CORP·Filed 2010·Granted Jan 1, 2013·0 cites·20 claims
- 1341US9513459B2Driving apparatus, optical apparatus and imaging apparatusMATSUKAWA EIJI·Filed 2012·Granted Dec 6, 2016·0 cites·29 claims
- 1434US2004029333A1Polishing device and method of manufacturing semiconductor deviceFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →