Inventor

YOSHIKAWA KEISHI

JP3 patents

⚠️ This page may combine multiple inventors who share the name “YOSHIKAWA KEISHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAMAMOTO KOGAKU

1 patent

US7922324B2Apr 12, 2011

Synthetic resin lens and eye lens article thereof

YAMAMOTO KOGAKU26 citations87

MATSUMOTO KIMIO

1 patent

US9015868B2Apr 28, 2015

Fog-resistant structure and protective device for eyes

MATSUMOTO KIMIO5 citations65

KOBUCHI NOBUYUKI

1 patent

US9507176B2Nov 29, 2016

Polarization optical article in which uneven coloring by polarization color has been improved

KOBUCHI NOBUYUKI0 citations32