Inventor
IZAWA YASUNORI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “IZAWA YASUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA LENS THAILAND LTD
5 patentsUS12140821B2Nov 12, 2024
Progressive addition lens and design method therefor
HOYA LENS THAILAND LTD0 citations62
US12099260B2Sep 24, 2024
Progressive addition lens and design method therefor
HOYA LENS THAILAND LTD0 citations51
US10203520B2Feb 12, 2019
Progressive power lens group
HOYA LENS THAILAND LTD0 citations48
US10185159B2Jan 22, 2019
Progressive power lens and method of designing and manufacturing the same
HOYA LENS THAILAND LTD0 citations48
US9772511B2Sep 26, 2017
Eyeglass lens and eyeglass lens manufacturing method
HOYA LENS THAILAND LTD1 citations48