Inventor · disambiguated record
Daisuke Okumura
Also filed as: OKUMURA DAISUKE
40 granted patents·9 pending applications·405 citations·filing 1997–2023
97Inventor score
Top patents by PatentIndex Score
49 records- 0197US9373490B1Time-of-flight mass spectrometerSHIMADZU CORP·Filed 2015·Granted Jun 21, 2016·26 cites·3 claims
- 0295US9865444B2Time-of-flight mass spectrometerSHIMADZU CORP·Filed 2015·Granted Jan 9, 2018·12 cites·8 claims
- 0394US8269166B2MS/MS mass spectrometerOKUMURA DAISUKE·Filed 2009·Granted Sep 18, 2012·23 cites·6 claims
- 0494US7211792B2Mass spectrometerSHIMADZU CORP·Filed 2005·Granted May 1, 2007·24 cites·12 claims
- 0594US6040521AN-type window layer for a thin film solar cell and method of makingSHOWA SHELL SEKIYU·Filed 1997·Granted Mar 21, 2000·205 cites·6 claims
- 0691US10020181B2Time-of-flight mass spectrometerSHIMADZU CORP·Filed 2014·Granted Jul 10, 2018·10 cites·12 claims
- 0791US8822915B2Atmospheric pressure ionization mass spectrometerMUKAIBATAKE KAZUO·Filed 2013·Granted Sep 2, 2014·12 cites·5 claims
- 0890US8866074B2Tandem mass spectrometer and mass spectrometric methodSHIMADZU CORP·Filed 2014·Granted Oct 21, 2014·10 cites·7 claims
- 0989US8637810B2Atmospheric pressure ionization mass spectrometerMUKAIBATAKE KAZUO·Filed 2010·Granted Jan 28, 2014·10 cites·7 claims
- 1087US8748811B2MS/MS mass spectrometerOKUMURA DAISUKE·Filed 2012·Granted Jun 10, 2014·8 cites·10 claims
- 1187US7985951B2Mass spectrometerSHIMADZU CORP·Filed 2007·Granted Jul 26, 2011·8 cites·7 claims
- 1283US8698072B2Triple quadrupole mass spectrometerSUGAWARA HIROSHI·Filed 2011·Granted Apr 15, 2014·6 cites·4 claims
- 1381US10229823B2Mass spectrometerSHIMADZU CORP·Filed 2015·Granted Mar 12, 2019·3 cites·4 claims
- 1479US8866077B2Mass spectrometerOKUMURA DAISUKE·Filed 2011·Granted Oct 21, 2014·4 cites·12 claims
- 1578US8384028B2MS/MS mass spectrometerSHIMADZU CORP·Filed 2008·Granted Feb 26, 2013·5 cites·14 claims
- 1677US8207495B2Quadrupole mass spectrometerMUKAIBATAKE KAZUO·Filed 2006·Granted Jun 26, 2012·4 cites·4 claims
- 1776US9324551B2Mass spectrometer and method of driving ion guideSHIMADZU CORP·Filed 2014·Granted Apr 26, 2016·3 cites·9 claims
- 1875US8134123B2Mass spectrometerNISHIGUCHI MASARU·Filed 2008·Granted Mar 13, 2012·3 cites·24 claims
- 1974US8148675B2Collision cell for an MS/MS mass spectrometerOKUMURA DAISUKE·Filed 2007·Granted Apr 3, 2012·3 cites·2 claims
- 2074US2022199385A1Liquid sample introduction method and liquid sample introduction deviceSHIMADZU CORP·Filed 2022·Application pending·0 cites
- 2174US2022199386A1Liquid sample introduction method and liquid sample introduction deviceSHIMADZU CORP·Filed 2022·Application pending·0 cites
- 2273US8242437B2MS/MS mass spectrometerITOI HIROTO·Filed 2007·Granted Aug 14, 2012·3 cites·5 claims
- 2372US7148473B2Time of flight mass spectrometerUNIV OSAKA·Filed 2004·Granted Dec 12, 2006·9 cites·11 claims
- 2470US9230788B2Mass spectrograph apparatus and method of driving ion guideOKUMURA DAISUKE·Filed 2012·Granted Jan 5, 2016·2 cites·7 claims
- 2570US8207491B2Mass spectrometerOKUMURA DAISUKE·Filed 2007·Granted Jun 26, 2012·2 cites·6 claims
- 2668US10573504B2Orthogonal acceleration time-of-flight mass spectrometrySHIMADZU CORP·Filed 2016·Granted Feb 25, 2020·1 cites·8 claims
- 2768US10529548B2Liquid sample introduction system for ion sourceSHIMADZU CORP·Filed 2015·Granted Jan 7, 2020·1 cites·9 claims
- 2867US10705048B2Mass spectrometerSHIMADZU CORP·Filed 2016·Granted Jul 7, 2020·1 cites·4 claims
- 2966US10923339B2Orthogonal acceleration time-of-flight mass spectrometrySHIMADZU CORP·Filed 2020·Granted Feb 16, 2021·0 cites·9 claims
- 3066US9040902B2Atmospheric pressure ionization mass spectrometerUEDA MANABU·Filed 2011·Granted May 26, 2015·2 cites·5 claims
- 3164US11309173B2Liquid sample introduction method and liquid sample introduction deviceSHIMADZU CORP·Filed 2017·Granted Apr 19, 2022·0 cites·2 claims
- 3263US9589781B2Ion guide and mass spectrometerOKUMURA DAISUKE·Filed 2010·Granted Mar 7, 2017·1 cites·10 claims
- 3363US2023393086A1Combustion monitoring device and combustion monitoring programAZBIL CORP·Filed 2023·Application pending·0 cites
- 3462US7227131B2Time of flight mass spectrometerUNIV OSAKA·Filed 2004·Granted Jun 5, 2007·4 cites·5 claims
- 3561US2024070535A1Cause estimation system, program, and model construction methodAZBIL CORP·Filed 2023·Application pending·0 cites
- 3656US11862451B2Orthogonal acceleration time-of-flight mass spectrometerSHIMADZU CORP·Filed 2022·Granted Jan 2, 2024·0 cites·4 claims
- 3754US8563920B2Mass spectrometerOKUMURA DAISUKE·Filed 2011·Granted Oct 22, 2013·0 cites·16 claims
- 3853US2023235883A1Flame monitorAZBIL CORP·Filed 2022·Application pending·0 cites
- 3952US2023253197A1Mass spectrometry method and mass spectrometerSHIMADZU CORP·Filed 2020·Application pending·0 cites
- 4051US11081333B2Power connector for mass spectrometerSHIMADZU CORP·Filed 2018·Granted Aug 3, 2021·0 cites·10 claims
- 4151US8698074B2MS/MS mass spectrometerITOI HIROTO·Filed 2012·Granted Apr 15, 2014·0 cites·2 claims
- 4251US2024035658A1Flame monitoring device and flame monitoring programAZBIL CORP·Filed 2023·Application pending·0 cites
- 4349US2013255775A1Wide band gap photovoltaic device and process of manufactureNUSOLA INC·Filed 2013·Application pending·0 cites
- 4448US10699892B2Time-of-flight mass spectrometerSHIMADZU CORP·Filed 2014·Granted Jun 30, 2020·0 cites·12 claims
- 4547US2010012835A1Ms/ms mass spectrometerSHIMADZU CORP·Filed 2006·Application pending·0 cites
- 4645US11152202B2Time-of-flight mass spectrometerSHIMADZU CORP·Filed 2018·Granted Oct 19, 2021·0 cites·3 claims
- 4744US11239069B2Mass spectrometerSHIMADZU CORP·Filed 2018·Granted Feb 1, 2022·0 cites·4 claims
- 4840US11152201B2Time-of-flight mass spectrometerSHIMADZU CORP·Filed 2018·Granted Oct 19, 2021·0 cites·7 claims
- 4938US9691598B2Ionizer and mass spectrometer including first section for ionizing sample under atmospheric pressure while vaporizing or desorbing the sample component and second section for generating corona dischargeSHIMADZU CORP·Filed 2013·Granted Jun 27, 2017·0 cites·14 claims
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