Inventor · disambiguated record
Akihiko Obama
Also filed as: OBAMA AKIHIKO · TAKE TOSHINORI
49 granted patents·6 pending applications·216 citations·filing 1995–2025
97Inventor score
Top patents by PatentIndex Score
55 records- 0195US11714268B2Variable magnification optical system, optical device, and method for manufacturing variable magnification optical systemNIKON CORP·Filed 2022·Granted Aug 1, 2023·2 cites·13 claims
- 0291US7706087B2Optical system and optical apparatusNIKON CORP·Filed 2008·Granted Apr 27, 2010·24 cites·36 claims
- 0387US8721094B2Lens system and optical apparatusTANAKA ISSEI·Filed 2010·Granted May 13, 2014·10 cites·31 claims
- 0486US7336425B2Zoom lens systemNIKON CORP·Filed 2006·Granted Feb 26, 2008·11 cites·7 claims
- 0586US7199940B2Zoom lens systemNIKON CORP·Filed 2005·Granted Apr 3, 2007·12 cites·30 claims
- 0686US6014266AZoom lens focusing system and methodNIKON CORP·Filed 1998·Granted Jan 11, 2000·78 cites·4 claims
- 0785US12298485B2Variable magnification optical system, optical device, and method for producing variable magnification optical systemNIKON CORP·Filed 2024·Granted May 13, 2025·0 cites·6 claims
- 0885US10203488B2Zoom lens, optical apparatus, and method for manufacturing zoom lensNIKON CORP·Filed 2016·Granted Feb 12, 2019·4 cites·10 claims
- 0984US2025251582A1Variable magnification optical system, optical device, and method for producing variable magnification optical systemNIKON CORP·Filed 2025·Application pending·0 cites
- 1081US12072477B2Variable magnification optical system, optical device, and method for manufacturing variable magnification optical systemNIKON CORP·Filed 2023·Granted Aug 27, 2024·0 cites·12 claims
- 1177US10831007B2Variable magnification optical system, optical device, and method for producing variable magnification optical systemNIKON CORP·Filed 2018·Granted Nov 10, 2020·1 cites·16 claims
- 1276US6870688B2Zoom lens systemNIKON CORP·Filed 2004·Granted Mar 22, 2005·14 cites·16 claims
- 1373US8498065B2Lens system and optical apparatusOBAMA AKIHIKO·Filed 2009·Granted Jul 30, 2013·5 cites·23 claims
- 1473US7218456B2Zoom lens systemNIKON CORP·Filed 2006·Granted May 15, 2007·4 cites·5 claims
- 1571US11892610B2Variable magnification optical system, optical device, and method for producing variable magnification optical systemNIKON CORP·Filed 2020·Granted Feb 6, 2024·0 cites·8 claims
- 1671US6771430B2Zoom lens systemNIKON CORP·Filed 2002·Granted Aug 3, 2004·11 cites·4 claims
- 1770US11579421B2Zoom lens, optical apparatus, and method for manufacturing zoom lensNIKON CORP·Filed 2020·Granted Feb 14, 2023·0 cites·12 claims
- 1867US8837910B2Image processing program, image processing device and image processing methodOBAMA AKIHIKO·Filed 2007·Granted Sep 16, 2014·4 cites·17 claims
- 1967US6870687B2Optical system with wavelength selecting deviceNIKON CORP·Filed 2002·Granted Mar 22, 2005·7 cites·30 claims
- 2066US10317654B2Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing methodNIKON CORP·Filed 2015·Granted Jun 11, 2019·1 cites·19 claims
- 2165US8934182B2Lens system and optical apparatusNIKON CORP·Filed 2013·Granted Jan 13, 2015·1 cites·9 claims
- 2263US9523843B2Zoom lens, optical apparatus, and method for manufacturing zoom lensOBAMA AKIHIKO·Filed 2011·Granted Dec 20, 2016·1 cites·35 claims
- 2362US10895721B2Zoom lens, optical apparatus, and method for manufacturing zoom lensNIKON CORP·Filed 2018·Granted Jan 19, 2021·0 cites·24 claims
- 2462US8913327B2Zoom lens system, optical apparatus and method for manufacturing zoom lens systemOBAMA AKIHIKO·Filed 2011·Granted Dec 16, 2014·1 cites·33 claims
- 2561US11385446B2Zoom optical system, optical device and method for manufacturing the zoom optical systemNIKON CORP·Filed 2019·Granted Jul 12, 2022·0 cites·18 claims
- 2661US11294155B2Variable magnification optical system, optical device, and method for manufacturing variable magnification optical systemNIKON CORP·Filed 2018·Granted Apr 5, 2022·0 cites·14 claims
- 2761US10948700B2Variable magnification optical system, optical device, and method for producing variable magnification optical systemNIKON CORP·Filed 2018·Granted Mar 16, 2021·0 cites·14 claims
- 2861US8764204B2Lens barrel, camera device and lens hoodOKUYAMA TEPPEI·Filed 2012·Granted Jul 1, 2014·2 cites·14 claims
- 2960US9030755B2Zoom lens system, optical apparatus, and method for manufacturing zoom lens systemTANAKA ISSEI·Filed 2012·Granted May 12, 2015·1 cites·24 claims
- 3058US7826143B2Optical system with wavelength selecting deviceNIKON CORP·Filed 2005·Granted Nov 2, 2010·1 cites·30 claims
- 3157US2017299849A1Variable magnification optical system, optical device, and method for producing variable magnificationNIKON CORP·Filed 2017·Application pending·0 cites
- 3256US9989744B2Variable magnification optical system, optical device, and method for producing variable magnification optical systemNIKON CORP·Filed 2015·Granted Jun 5, 2018·0 cites·54 claims
- 3355US10451858B2Zoom optical system, optical device and method for manufacturing the zoom optical systemNIKON CORP·Filed 2016·Granted Oct 22, 2019·0 cites·47 claims
- 3455US10185130B2Variable magnification optical system, optical device, and method for manufacturing variable magnification optical systemNIKON CORP·Filed 2015·Granted Jan 22, 2019·0 cites·28 claims
- 3555US2018113285A1Variable magnification optical system, optical device, and production method for variable magnification optical systemNIKON CORP·Filed 2017·Application pending·0 cites
- 3654US9709779B2Variable magnification optical system, optical device, and method for producing variable magnificationNIKON CORP·Filed 2015·Granted Jul 18, 2017·0 cites·26 claims
- 3754US6603603B2Real image viewfinder optical systemNIKON CORP·Filed 2002·Granted Aug 5, 2003·4 cites·4 claims
- 3853US11653096B2Calculation device, interchangeable lens, camera body, and imaging deviceNIKON CORP·Filed 2019·Granted May 16, 2023·0 cites·12 claims
- 3953US9684154B2Zooming optical system, optical apparatus and method for manufacturing zooming optical systemNIKON CORP·Filed 2014·Granted Jun 20, 2017·0 cites·15 claims
- 4052US9513471B2Zoom lens system, optical apparatus and method for manufacturing zoom lens systemNIKON CORP·Filed 2014·Granted Dec 6, 2016·0 cites·18 claims
- 4151US9983391B2Variable power optical assembly, optical device, and variable power optical assembly fabrication methodNIKON CORP·Filed 2015·Granted May 29, 2018·0 cites·21 claims
- 4251US9874730B2Variable magnification optical system, optical device, and production method for variable magnification optical systemNIPPON KOGAKU KK·Filed 2015·Granted Jan 23, 2018·0 cites·13 claims
- 4349US7502173B2Zoom lens systemNIKON CORP·Filed 2006·Granted Mar 10, 2009·0 cites·8 claims
- 4448US8982226B2Camera capable of taking movieTANAKA MASAHIDE·Filed 2007·Granted Mar 17, 2015·0 cites·21 claims
- 4547US2018252902A1Variable power optical assembly, optical device, and variable power optical assembly fabrication methodNIKON CORP·Filed 2018·Application pending·0 cites
- 4645US10168512B2Variable magnification optical system, optical device, and production method for variable magnification optical systemNIKON CORP·Filed 2015·Granted Jan 1, 2019·0 cites·21 claims
- 4744US10234663B2Variable power optical system, optical device, and method of manufacturing variable power optical systemNIKON CORP·Filed 2016·Granted Mar 19, 2019·0 cites·36 claims
- 4843US5737129AWide-angle zoom lensNIKON CORP·Filed 1995·Granted Apr 7, 1998·10 cites·16 claims
- 4943US2005046958A1Optical system with wavelength selecting deviceNIKON CORP·Filed 2004·Application pending·0 cites
- 5040US10126535B2Variable magnification optical system, optical device, and production method for variable magnification optical systemNIKON CORP·Filed 2015·Granted Nov 13, 2018·0 cites·26 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →