Inventor · disambiguated record
Kazuaki Matsui
Also filed as: MATSUI KAZUAKI
21 granted patents·10 pending applications·224 citations·filing 1974–2023
95Inventor score
Files withTOPPAN PHOTOMASK CO LTD7KONICA MINOLTA OPTO INC5MINOLTA CO LTD5SHINANO FUMIO3KONICA MINOLTA PHOTO IMAGING2
Top patents by PatentIndex Score
31 records- 0189US5241106AProcess for producing ethyl acetateMITSUI TOATSU CHEMICALS·Filed 1992·Granted Aug 31, 1993·90 cites·15 claims
- 0288US9285672B2Reflective mask and method for manufacturing sameTOPPAN PRINTING CO LTD·Filed 2014·Granted Mar 15, 2016·8 cites·19 claims
- 0387US7898745B2Lens unit and image pickup apparatusKONICA MINOLTA OPTO INC·Filed 2007·Granted Mar 1, 2011·18 cites·20 claims
- 0485US7170558B2Compact and low-profile digital cameraMINOLTA CO LTD·Filed 2003·Granted Jan 30, 2007·28 cites·20 claims
- 0580US8456755B2Lens barrelSHINANO FUMIO·Filed 2012·Granted Jun 4, 2013·4 cites·14 claims
- 0680US7773321B2Lens unit and image pickup apparatusKONICA MINOLTA OPTO INC·Filed 2007·Granted Aug 10, 2010·6 cites·15 claims
- 0779US8547647B2Lens barrelSHINANO FUMIO·Filed 2009·Granted Oct 1, 2013·7 cites·13 claims
- 0878US7557852B2Image-taking apparatus, magnification variation control method, and lens unitKONICA MINOLTA PHOTO IMAGING·Filed 2006·Granted Jul 7, 2009·5 cites·33 claims
- 0974US8780456B2Lens barrelPANASANONIC CORP·Filed 2013·Granted Jul 15, 2014·3 cites·3 claims
- 1074US7180542B2Imaging lens device and digital camera having the imaging lens deviceMINOLTA CO LTD·Filed 2003·Granted Feb 20, 2007·15 cites·32 claims
- 1171US7286163B2Image taking device with bent optical systemMINOLTA CO LTD·Filed 2003·Granted Oct 23, 2007·10 cites·1 claims
- 1270US7652830B2Lens barrel and photographing apparatusKONICA MINOLTA OPTO INC·Filed 2007·Granted Jan 26, 2010·5 cites·16 claims
- 1369US5254721AProcess for producing cyclohexyl acetateMITSUI TOATSU CHEMICALS·Filed 1993·Granted Oct 19, 1993·11 cites·18 claims
- 1461US6479711B1Process for producing aromatic hydroxy compoundMITSUI CHEMICALS INC·Filed 2000·Granted Nov 12, 2002·2 cites·11 claims
- 1561US2025130488A1Photomask blank, photomask, and method for manufacturing photomaskTOPPAN PHOTOMASK CO LTD·Filed 2023·Application pending·0 cites
- 1660US7787192B2Lens unit and photographing apparatusKONICA MINOLTA OPTO INC·Filed 2007·Granted Aug 31, 2010·2 cites·17 claims
- 1759US3984305AProcess for producing low sulfur content fuel oilsKUREHA CHEMICAL IND CO LTD·Filed 1974·Granted Oct 5, 1976·9 cites·3 claims
- 1857US8223441B2Lens barrelSHINANO FUMIO·Filed 2009·Granted Jul 17, 2012·1 cites·5 claims
- 1954US2024302732A1Phase shift mask blank, phase shift mask, and method for manufacturing phase shift maskTOPPAN PHOTOMASK CO LTD·Filed 2022·Application pending·0 cites
- 2054US2024152045A1Phase shift mask blank, phase shift mask, method for manufacturing phase shift mask, and method for modifying phase shift maskTOPPAN PHOTOMASK CO LTD·Filed 2022·Application pending·0 cites
- 2153US2023333461A1Phase shift mask blank, phase shift mask, and method for manufacturing phase shift maskTOPPAN PHOTOMASK CO LTD·Filed 2021·Application pending·0 cites
- 2253US2024419064A1Phase shift mask and method for manufacturing phase shift maskTOPPAN PHOTOMASK CO LTD·Filed 2023·Application pending·0 cites
- 2352US2023070724A1Reflective mask blank, reflective mask, reflective mask manufacturing method, and reflective mask correction methodTOPPAN PHOTOMASK CO LTD·Filed 2020·Application pending·0 cites
- 2451US12326656B2Mask blank and method of manufacturing photomaskHOYA CORP·Filed 2021·Granted Jun 10, 2025·0 cites·10 claims
- 2549US10108024B2Lens barrelPANASONIC IP MAN CO LTD·Filed 2016·Granted Oct 23, 2018·0 cites·8 claims
- 2647US7463428B2Lens barrel and photographing apparatusKONICA MINOLTA OPTO INC·Filed 2007·Granted Dec 9, 2008·0 cites·13 claims
- 2745US2023375908A1Reflective photomask blank and reflective photomaskTOPPAN PHOTOMASK CO LTD·Filed 2021·Application pending·0 cites
- 2845US2004169772A1CameraMINOLTA CO LTD·Filed 2003·Application pending·0 cites
- 2945US2004135915A1Image capturing device having bending optical systemMINOLTA CO LTD·Filed 2003·Application pending·0 cites
- 3045US2007052833A1Variable magnification optical system and image-taking apparatusKONICA MINOLTA PHOTO IMAGING·Filed 2006·Application pending·0 cites
- 3139US8654460B2Lens barrelMATSUI KAZUAKI·Filed 2012·Granted Feb 18, 2014·0 cites·5 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →