Inventor
YOKOI NORIKAZU
JP13 patents
⚠️ This page may combine multiple inventors who share the name “YOKOI NORIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIKON CORP
10 patentsUS10203488B2Feb 12, 2019
Zoom lens, optical apparatus, and method for manufacturing zoom lens
NIKON CORP4 citations83
US11579421B2Feb 14, 2023
Zoom lens, optical apparatus, and method for manufacturing zoom lens
NIKON CORP0 citations62
US10895721B2Jan 19, 2021
Zoom lens, optical apparatus, and method for manufacturing zoom lens
NIKON CORP0 citations62
US10317654B2Jun 11, 2019
Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing method
NIKON CORP1 citations62
US12092802B2Sep 17, 2024
Variable magnification optical system, optical equipment, and method for producing variable magnification optical system
NIKON CORP0 citations61
US11644655B2May 9, 2023
Variable magnification optical system, optical equipment, and method for producing variable magnification optical system
NIKON CORP1 citations61
US11409086B2Aug 9, 2022
Variable magnification optical system, optical equipment, and method for producing variable magnification optical system
NIKON CORP0 citations61
US12332413B2Jun 17, 2025
Variable magnification optical system, optical equipment, and method for producing variable magnification optical system
NIKON CORP0 citations51
US9513471B2Dec 6, 2016
Zoom lens system, optical apparatus and method for manufacturing zoom lens system
NIKON CORP0 citations51
US9759898B2Sep 12, 2017
Zooming optical system, optical apparatus and method for manufacturing zooming optical system
NIKON CORP1 citations50