Inventor · disambiguated record
Yu Kitahara
Also filed as: KITAHARA YU
27 granted patents·16 pending applications·141 citations·filing 2003–2025
95Inventor score
Top patents by PatentIndex Score
43 records- 0192US7663814B2Imaging lens system and imaging apparatusFUJINON CORP·Filed 2008·Granted Feb 16, 2010·30 cites·16 claims
- 0291US8040618B2Imaging lens and imaging apparatus using imaging lensFUJINON CORP·Filed 2009·Granted Oct 18, 2011·27 cites·6 claims
- 0387US7911712B2Imaging lens and imaging apparatusFUJINON CORP·Filed 2009·Granted Mar 22, 2011·16 cites·16 claims
- 0486US9753256B2Imaging lens and imaging apparatusFUJIFILM CORP·Filed 2015·Granted Sep 5, 2017·5 cites·20 claims
- 0581US7903349B2Imaging lens and imaging apparatus using imaging lensFUJINON CORP·Filed 2009·Granted Mar 8, 2011·4 cites·7 claims
- 0677US7613098B2Objective optical system for optical recording media and optical pickup device using itFUJINON CORP·Filed 2005·Granted Nov 3, 2009·3 cites·4 claims
- 0777US7483221B2Image reading lens, image optical system and image readerFUJINON CORP·Filed 2007·Granted Jan 27, 2009·8 cites·21 claims
- 0875US7443779B2Objective optical system for optical recording media and optical pickup device using itFUJINON CORP·Filed 2004·Granted Oct 28, 2008·10 cites·20 claims
- 0974US8223245B2Imaging lens and image pickup apparatusKITAHARA YU·Filed 2010·Granted Jul 17, 2012·4 cites·11 claims
- 1072US9465201B2Imaging lens and imaging apparatusFUJIFILM CORP·Filed 2014·Granted Oct 11, 2016·2 cites·15 claims
- 1172US6781771B2Objective lens for optical recording medium and optical pickup device using itFUJI PHOTO OPTICAL CO LTD·Filed 2003·Granted Aug 24, 2004·9 cites·32 claims
- 1271US7589914B2Molded lensFUJINON CORP·Filed 2007·Granted Sep 15, 2009·1 cites·24 claims
- 1370US9952413B2Imaging lens and imaging apparatusFUJIFILM CORP·Filed 2016·Granted Apr 24, 2018·2 cites·12 claims
- 1469US8009544B2Objective lens, optical pickup device having the same, and recording and/or reproducing apparatus for optical recording medium, equipped with the optical pickup deviceFUJINON CORP·Filed 2008·Granted Aug 30, 2011·1 cites·13 claims
- 1569US7995290B2Objective lens, optical pickup device, and optical recording/reproducing apparatusFUJINON CORP·Filed 2009·Granted Aug 9, 2011·1 cites·20 claims
- 1667US7502299B2Objective optical system and optical pickup device using itFUJINON CORP·Filed 2004·Granted Mar 10, 2009·6 cites·19 claims
- 1766US2025264697A1Imaging lens and imaging apparatusFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 1864US7457223B2Objective lens for optical recording media and optical pickup device using itFUJINON CORP·Filed 2004·Granted Nov 25, 2008·5 cites·16 claims
- 1963US7220064B2Coupling optical system for optical communicationsFUJINON CORP·Filed 2006·Granted May 22, 2007·3 cites·3 claims
- 2063US2025170839A1Multilayer belt, medium transport device, and recording deviceSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 2162US2025102886A1Finder optical system, finder device, and imaging apparatusFUJIFILM CORP·Filed 2024·Application pending·0 cites
- 2261US2025102795A1Imaging lens and imaging apparatusFUJIFILM CORP·Filed 2024·Application pending·0 cites
- 2357US2024319542A1Exposure system, method of forming alignment film, method of manufacturing optical element, and optical elementFUJIFILM CORP·Filed 2024·Application pending·0 cites
- 2456US2009296227A1Molded lensKATSUMA TOSHIAKI·Filed 2009·Application pending·0 cites
- 2554US7298687B2Optical recording media objective lens and optical pickup device using itFUJINON CORP·Filed 2004·Granted Nov 20, 2007·2 cites·16 claims
- 2654US7286463B2Objective lens and optical pickup device using itFUJINON CORP·Filed 2004·Granted Oct 23, 2007·2 cites·20 claims
- 2749US7656594B2Color image readout lens and color image readout apparatusFUJINON CORP·Filed 2008·Granted Feb 2, 2010·0 cites·20 claims
- 2848US2007025204A1Objective optical system for optical recording media and optical pickup device using itFUJINON CORP·Filed 2006·Application pending·0 cites
- 2947US8345356B2Objective lens, optical pickup device, and optical recording/reproducing apparatusFUJINON CORP·Filed 2009·Granted Jan 1, 2013·0 cites·10 claims
- 3047US8064319B2Objective lens, optical pickup device having the same, and recording and/or reproducing apparatus for optical recording medium, equipped with the optical pickup deviceKATSUMA TOSHIAKI·Filed 2008·Granted Nov 22, 2011·0 cites·8 claims
- 3146US2006109773A1Objective optical system for optical recording media and optical pickup device using itFUJINON CORP·Filed 2005·Application pending·0 cites
- 3246US2006077861A1Objective optical system for optical recording media, optical pickup optical system, and optical pickup device using the optical pickup optical systemFUJINON CORP·Filed 2005·Application pending·0 cites
- 3346US2006077794A1Objective optical system for optical recording media and optical pickup device using the objective optical systemFUJINON CORP·Filed 2005·Application pending·0 cites
- 3446US2009129242A1Objective lens, optical pickup device having the same, and recording and/or reproducing apparatus for optical recording medium, equipped with the optical pickup deviceKATSUMA TOSHIAKI·Filed 2008·Application pending·0 cites
- 3545US7417806B2Lens with reference mounting surfaceFUJINON CORP·Filed 2006·Granted Aug 26, 2008·0 cites·6 claims
- 3645US2006077795A1Objective optical system for optical recording media and optical pickup device using itFUJINON CORP·Filed 2005·Application pending·0 cites
- 3745US2005259554A1Objective optical system and optical pickup device using itFUJINON CORP·Filed 2005·Application pending·0 cites
- 3844US8508862B2Image pickup lens and image pickup apparatusKITAHARA YU·Filed 2011·Granted Aug 13, 2013·0 cites·11 claims
- 3944US2011080646A1Molded lensKATSUMA TOSHIAKI·Filed 2010·Application pending·0 cites
- 4043US7680014B2Objective optical system and optical pickup device using itFUJINON CORP·Filed 2004·Granted Mar 16, 2010·0 cites·33 claims
- 4142US7266070B2Objective lens for different optical recording media and an optical pickup device utilizing itFUJINON CORP·Filed 2004·Granted Sep 4, 2007·0 cites·10 claims
- 4241US2004184385A1Aperture limiting element and optical pickup device utilizing itFiled 2004·Application pending·0 cites
- 4337US2004190428A1Optical device molding die designing methodFUJI PHOTO OPTICAL CO LTD·Filed 2004·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →