Inventor · disambiguated record
Norikazu Yokoi
Also filed as: YOKOI NORIKAZU
13 granted patents·3 pending applications·10 citations·filing 2011–2025
86Inventor score
Top patents by PatentIndex Score
16 records- 0190US11644655B2Variable magnification optical system, optical equipment, and method for producing variable magnification optical systemNIKON CORP·Filed 2022·Granted May 9, 2023·1 cites·17 claims
- 0285US10203488B2Zoom lens, optical apparatus, and method for manufacturing zoom lensNIKON CORP·Filed 2016·Granted Feb 12, 2019·4 cites·10 claims
- 0383US2025044562A1Variable magnification optical system, optical equipment, and method for producing variable magnification optical systemNIKON CORP·Filed 2024·Application pending·0 cites
- 0480US12092802B2Variable magnification optical system, optical equipment, and method for producing variable magnification optical systemNIKON CORP·Filed 2023·Granted Sep 17, 2024·0 cites·19 claims
- 0579US2025306347A1Variable magnification optical system, optical equipment, and method for producing variable magnification optical systemNIKON CORP·Filed 2025·Application pending·0 cites
- 0670US11579421B2Zoom lens, optical apparatus, and method for manufacturing zoom lensNIKON CORP·Filed 2020·Granted Feb 14, 2023·0 cites·12 claims
- 0766US10317654B2Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing methodNIKON CORP·Filed 2015·Granted Jun 11, 2019·1 cites·19 claims
- 0863US9523843B2Zoom lens, optical apparatus, and method for manufacturing zoom lensOBAMA AKIHIKO·Filed 2011·Granted Dec 20, 2016·1 cites·35 claims
- 0962US11409086B2Variable magnification optical system, optical equipment, and method for producing variable magnification optical systemNIKON CORP·Filed 2018·Granted Aug 9, 2022·0 cites·32 claims
- 1062US10895721B2Zoom lens, optical apparatus, and method for manufacturing zoom lensNIKON CORP·Filed 2018·Granted Jan 19, 2021·0 cites·24 claims
- 1162US9759898B2Zooming optical system, optical apparatus and method for manufacturing zooming optical systemNIKON CORP·Filed 2014·Granted Sep 12, 2017·1 cites·31 claims
- 1262US8913327B2Zoom lens system, optical apparatus and method for manufacturing zoom lens systemOBAMA AKIHIKO·Filed 2011·Granted Dec 16, 2014·1 cites·33 claims
- 1360US9030755B2Zoom lens system, optical apparatus, and method for manufacturing zoom lens systemTANAKA ISSEI·Filed 2012·Granted May 12, 2015·1 cites·24 claims
- 1458US12332413B2Variable magnification optical system, optical equipment, and method for producing variable magnification optical systemNIKON CORP·Filed 2018·Granted Jun 17, 2025·0 cites·25 claims
- 1552US9513471B2Zoom lens system, optical apparatus and method for manufacturing zoom lens systemNIKON CORP·Filed 2014·Granted Dec 6, 2016·0 cites·18 claims
- 1651US2025189770A1Zoom optical system, optical apparatus and method for manufacturing the zoom optical systemNIKON CORP·Filed 2022·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Norikazu Yokoi 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 →