Inventor
KITAHARA YOSHITAKA
JP8 patents
⚠️ This page may combine multiple inventors who share the name “KITAHARA YOSHITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
7 patentsUS6313316B1Nov 6, 2001
Polyisocyanate compounds, process for producing the same, and optical materials using the same
HOYA CORP15 citations91
US6596836B2Jul 22, 2003
Polyisocyanate compounds, process for producing the same, and optical materials using the same
HOYA CORP4 citations61
US6455729B1Sep 24, 2002
Polyisocyanate compounds, process for producing the same, and optical materials using the same
HOYA CORP1 citations61
US6194603B1Feb 27, 2001
Polyisocyanate compound, process for producing the same and optical materials using the same
HOYA CORP5 citations61
US7682531B2Mar 23, 2010
Process for producing optical member
HOYA CORP3 citations57
US6489430B2Dec 3, 2002
Polyisocyanate compounds, process for producing the same, and optical materials using the same
HOYA CORP1 citations51
US8377345B2Feb 19, 2013
Method of manufacturing optical member, method of manufacturing plastic lens, gasket for molding plastic lens, and jog for casting monomer
HOYA CORP0 citations47