Inventor · disambiguated record
Keiji Iwata
Also filed as: IWATA KEIJI
21 granted patents·14 pending applications·137 citations·filing 1993–2024
94Inventor score
Files withSCREEN HOLDINGS CO LTD10MURATA MANUFACTURING CO9DAINIPPON SCREEN MFG4IWATA KEIJI4NIPPON STEEL CORP4
Top patents by PatentIndex Score
35 records- 0188US8034196B2Low core loss grain-oriented electrical steel plate and method of manufacturing the sameNIPPON STEEL CORP·Filed 2009·Granted Oct 11, 2011·6 cites·8 claims
- 0286US8519309B2Wafer heating apparatus and semiconductor manufacturing apparatusIWATA KEIJI·Filed 2010·Granted Aug 27, 2013·8 cites·19 claims
- 0385US8071916B2Wafer heating apparatus and semiconductor manufacturing apparatusIWATA KEIJI·Filed 2005·Granted Dec 6, 2011·11 cites·22 claims
- 0484US9865994B2Vertical cavity surface emitting laser array and method for manufacturing the sameMURATA MANUFACTURING CO·Filed 2016·Granted Jan 9, 2018·5 cites·16 claims
- 0580US9692211B2Vertical cavity surface emitting laser arrayMURATA MANUFACTURING CO·Filed 2016·Granted Jun 27, 2017·5 cites·10 claims
- 0674US10464107B2Substrate processing method and substrate processing apparatusSCREEN HOLDINGS CO LTD·Filed 2014·Granted Nov 5, 2019·3 cites·19 claims
- 0774US8734658B2Method for manufacturing grain-oriented electrical steel sheetIWATA KEIJI·Filed 2011·Granted May 27, 2014·1 cites·3 claims
- 0874US6605412B2Resist pattern and method for forming wiring patternMURATA MANUFACTURING CO·Filed 2001·Granted Aug 12, 2003·14 cites·14 claims
- 0968US9403187B2Substrate processing method and substrate processing apparatusDAINIPPON SCREEN MFG·Filed 2014·Granted Aug 2, 2016·2 cites·7 claims
- 1067US10290511B2Substrate treatment apparatus and substrate treatment methodSCREEN HOLDINGS CO LTD·Filed 2017·Granted May 14, 2019·1 cites·5 claims
- 1167US9698568B2Vertical-cavity surface-emitting laser device and vertical-cavity surface-emitting laser array deviceMURATA MANUFACTURING CO·Filed 2014·Granted Jul 4, 2017·2 cites·13 claims
- 1265US5680302AAC output control apparatusNIPPON STEEL CORP·Filed 1996·Granted Oct 21, 1997·38 cites·14 claims
- 1365US2025100023A1Substrate processing device and substrate processing methodSCREEN HOLDINGS CO LTD·Filed 2024·Application pending·0 cites
- 1464US9340761B2Substrate processing method and substrate processing apparatusDAINIPPON SCREEN MFG·Filed 2014·Granted May 17, 2016·1 cites·6 claims
- 1563US2025114812A1Substrate processing apparatusSCREEN HOLDINGS CO LTD·Filed 2024·Application pending·0 cites
- 1659US5679937ASwitching deviceTOYO DENSO KK·Filed 1995·Granted Oct 21, 1997·17 cites·20 claims
- 1759US2024359220A1Substrate treating apparatus and substrate treating methodSCREEN HOLDINGS CO LTD·Filed 2024·Application pending·0 cites
- 1856US12255061B2Substrate processing methodSCREEN HOLDINGS CO LTD·Filed 2021·Granted Mar 18, 2025·0 cites·4 claims
- 1953US12211687B2Substrate treatment apparatus and substrate treatment methodSCREEN HOLDINGS CO LTD·Filed 2021·Granted Jan 28, 2025·0 cites·13 claims
- 2052US2023035447A1Substrate treatment method and substrate treatment deviceSCREEN HOLDINGS CO LTD·Filed 2022·Application pending·0 cites
- 2152US2023035562A1Substrate processing method and substrate processing deviceSCREEN HOLDINGS CO LTD·Filed 2022·Application pending·0 cites
- 2249US5621649AMethod for analyzing electromagnetic fieldNIPPON STEEL CORP·Filed 1993·Granted Apr 15, 1997·15 cites·8 claims
- 2346US2014045339A1Substrate treatment apparatus and substrate treatment methodIWATA KEIJI·Filed 2013·Application pending·0 cites
- 2445US9555452B2Substrate treatment method and substrate treatment apparatusDAINIPPON SCREEN MFG·Filed 2014·Granted Jan 31, 2017·0 cites·7 claims
- 2545US2016236241A1Substrate processing methodSCREEN HOLDINGS CO LTD·Filed 2016·Application pending·0 cites
- 2645US2009272464A1Grain-Oriented Electrical Sheet Superior in Watt LossNIPPON STEEL CORP·Filed 2007·Application pending·0 cites
- 2742US9118167B2Vertical cavity surface emitting laserMURATA MANUFACTURING CO·Filed 2014·Granted Aug 25, 2015·0 cites·16 claims
- 2842US2015072078A1Substrate treatment method and substrate treatment apparatusDAINIPPON SCREEN MFG·Filed 2014·Application pending·0 cites
- 2941US5762183ASwitch device and manufacturing method of stationary contact base thereofTOYO DENSO KK·Filed 1996·Granted Jun 9, 1998·8 cites·6 claims
- 3040US2018128999A1Photoelectric conversion element and optical moduleMURATA MANUFACTURING CO·Filed 2018·Application pending·0 cites
- 3140US2015063393A1Vertical cavity surface emitting laserMURATA MANUFACTURING CO·Filed 2014·Application pending·0 cites
- 3238US2005173809A1Wafer-level package and method for production thereofFiled 2005·Application pending·0 cites
- 3335US2018131156A1Photoelectric conversion element and optical communication moduleMURATA MANUFACTURING CO·Filed 2018·Application pending·0 cites
- 3431US2015311675A1Vertical-cavity surface-emitting laserMURATA MANUFACTURING CO·Filed 2015·Application pending·0 cites
- 3529US6205659B1Method for forming push rod for switchTOYO DENSO KK·Filed 1998·Granted Mar 27, 2001·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →