Inventor · disambiguated record
Yukiko Nagatoshi
Also filed as: NAGATOSHI YUKIKO
59 granted patents·7 pending applications·96 citations·filing 2001–2025
97Inventor score
Top patents by PatentIndex Score
66 records- 0197US11194235B2ProjectorFUJIFILM CORP·Filed 2020·Granted Dec 7, 2021·5 cites·19 claims
- 0291US8482851B2Projection optical system and projection display device using the sameNAGATOSHI YUKIKO·Filed 2010·Granted Jul 9, 2013·11 cites·9 claims
- 0390US8976455B2Variable-magnification projection optical system and projection display deviceFUJIFILM CORP·Filed 2013·Granted Mar 10, 2015·12 cites·16 claims
- 0489US11119393B2ProjectorFUJIFILM CORP·Filed 2020·Granted Sep 14, 2021·2 cites·12 claims
- 0588US11662559B2Imaging optical system, projection-type display apparatus, and imaging apparatusFUJIFILM CORP·Filed 2021·Granted May 30, 2023·1 cites·20 claims
- 0688US11061307B2Projection optical system and projectorFUJIFILM CORP·Filed 2020·Granted Jul 13, 2021·2 cites·17 claims
- 0788US10437027B2Imaging optical system, projection-type display apparatus, and imaging apparatusFUJIFILM CORP·Filed 2017·Granted Oct 8, 2019·4 cites·12 claims
- 0887US11112587B2Imaging optical system, projection-type display apparatus, and imaging apparatusFUJIFILM CORP·Filed 2019·Granted Sep 7, 2021·3 cites·14 claims
- 0984US10527828B2Zoom lens, projection display device, and imaging apparatus for forming an intermediate imageFUJIFILM CORP·Filed 2017·Granted Jan 7, 2020·3 cites·11 claims
- 1084US10082650B2Wide-angle lens, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2017·Granted Sep 25, 2018·3 cites·16 claims
- 1183US11280986B2Zoom lens, projection display device, and imaging apparatus for forming an intermediate imageFUJIFILM CORP·Filed 2019·Granted Mar 22, 2022·2 cites·18 claims
- 1282US10101641B2Zoom lens, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2017·Granted Oct 16, 2018·3 cites·16 claims
- 1381US12019223B2Imaging optical system, projection-type display apparatus, and imaging apparatusFUJIFILM CORP·Filed 2023·Granted Jun 25, 2024·0 cites·19 claims
- 1481US10451854B2Imaging optical system, projection-type display apparatus, and imaging apparatusFUJIFILM CORP·Filed 2017·Granted Oct 22, 2019·3 cites·9 claims
- 1579US10754238B2Imaging optical system, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2019·Granted Aug 25, 2020·2 cites·12 claims
- 1678US8976454B2Variable-magnification projection optical system and projection display deviceFUJIFILM CORP·Filed 2013·Granted Mar 10, 2015·4 cites·16 claims
- 1778US8072690B2Projection zoom lens system and projection type display apparatusNAGATOSHI YUKIKO·Filed 2009·Granted Dec 6, 2011·9 cites·7 claims
- 1877US8693105B2Variable magnification optical system for projection and projection-type display apparatusNAGATOSHI YUKIKO·Filed 2011·Granted Apr 8, 2014·4 cites·37 claims
- 1977US8270092B2Zoom lens for projection and projection-type display apparatusNAGATOSHI YUKIKO·Filed 2010·Granted Sep 18, 2012·4 cites·18 claims
- 2074US11899346B2Projector with rotatable projection lensFUJIFILM CORP·Filed 2021·Granted Feb 13, 2024·0 cites·19 claims
- 2173US12216391B2Projector with rotatable projection lensFUJIFILM CORP·Filed 2023·Granted Feb 4, 2025·0 cites·19 claims
- 2273US11835697B2Zoom lens, projection display device, and imaging apparatus for forming an intermediate imageFUJIFILM CORP·Filed 2022·Granted Dec 5, 2023·0 cites·21 claims
- 2372US11067776B2Imaging optical system, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2018·Granted Jul 20, 2021·1 cites·20 claims
- 2472US10955731B2Imaging optical system, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2019·Granted Mar 23, 2021·1 cites·12 claims
- 2572US9557538B2Projection zoom lens and projection type display deviceFUJIFILM CORP·Filed 2015·Granted Jan 31, 2017·2 cites·18 claims
- 2672US9494776B2Zoom lens and imaging apparatusFUJIFILM CORP·Filed 2015·Granted Nov 15, 2016·2 cites·17 claims
- 2769US10852535B2Imaging lens and optical apparatusFUJIFILM CORP·Filed 2018·Granted Dec 1, 2020·1 cites·16 claims
- 2868US7710659B2Projection zoom lens system and projection type display apparatusFUJINON CORP·Filed 2009·Granted May 4, 2010·4 cites·17 claims
- 2968US7436597B2Projection lensFUJINON CORP·Filed 2007·Granted Oct 14, 2008·4 cites·21 claims
- 3068US2025264700A1Projection optical system and projection type display deviceFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 3163US12181784B2Projection lensFUJIFILM CORP·Filed 2021·Granted Dec 31, 2024·0 cites·20 claims
- 3262US12164088B2Projection lens and projection apparatusFUJIFILM CORP·Filed 2022·Granted Dec 10, 2024·0 cites·16 claims
- 3360US2024264519A1Projection optical system and projection type display deviceFUJIFILM CORP·Filed 2024·Application pending·0 cites
- 3459US2024077794A1Projection optical system and projection type display apparatusFUJIFILM CORP·Filed 2023·Application pending·0 cites
- 3559US2024073382A1Optical device, projection type display apparatus, and optical systemFUJIFILM CORP·Filed 2023·Application pending·0 cites
- 3658US11506958B2ProjectorFUJIFILM CORP·Filed 2021·Granted Nov 22, 2022·0 cites·20 claims
- 3756US10838179B2Wide-angle lens, projection lens, relay lens, projection-type display apparatus, and relay lens unitFUJIFILM CORP·Filed 2019·Granted Nov 17, 2020·0 cites·10 claims
- 3856US7663806B2Projection lens and projection type display device using the sameFUJINON CORP·Filed 2008·Granted Feb 16, 2010·1 cites·10 claims
- 3954US9261687B2Variable magnification optical system for projection and projection-type display apparatusFUJIFILM CORP·Filed 2014·Granted Feb 16, 2016·0 cites·14 claims
- 4053US11415784B2Imagaing optical system, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2019·Granted Aug 16, 2022·0 cites·15 claims
- 4153US11320635B2Imaging optical system, projection type display device, and imaging apparatusFUJIFILM CORP·Filed 2020·Granted May 3, 2022·0 cites·19 claims
- 4252US6606203B2Ocular zoom lensFUJI PHOTO OPTICAL CO LTD·Filed 2002·Granted Aug 12, 2003·3 cites·11 claims
- 4351US10401599B2Zoom lens, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2017·Granted Sep 3, 2019·0 cites·17 claims
- 4451US2024064276A1Image forming optical system, projection type display device, and imaging apparatusFUJIFILM CORP·Filed 2023·Application pending·0 cites
- 4550US9195034B2Lens for projection and projection-type display apparatusFUJIFILM CORP·Filed 2014·Granted Nov 24, 2015·0 cites·20 claims
- 4649US10871638B2Imaging optical system, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2018·Granted Dec 22, 2020·0 cites·12 claims
- 4749US9001429B2Optical system for projection and projection-type display apparatusFUJIFILM CORP·Filed 2014·Granted Apr 7, 2015·0 cites·10 claims
- 4849US2022057612A1Projection optical system and projection type display deviceFUJIFILM CORP·Filed 2021·Application pending·0 cites
- 4948US11125987B2Imaging optical system, projection display device, and imaging apparatusFUJIFILM CORP·Filed 2019·Granted Sep 21, 2021·0 cites·13 claims
- 5048US10948699B1Imaging optical system, projection type display device, and imaging apparatusFUJIFILM CORP·Filed 2020·Granted Mar 16, 2021·0 cites·17 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yukiko Nagatoshi 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 →