Inventor
NIWA KAZUHARU
JP22 patents
⚠️ This page may combine multiple inventors who share the name “NIWA KAZUHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MENICON CO LTD
13 patentsUS6326448B1Dec 4, 2001
Soft intraocular lens material
MENICON CO LTD91 citations96
US6277940B1Aug 21, 2001
Material for a soft intraocular lens
MENICON CO LTD65 citations96
US5147902ASep 15, 1992
Ultraviolet light absorbing ocular lens
MENICON CO LTD59 citations96
US6140438AOct 31, 2000
Soft intraocular lens material
MENICON CO LTD84 citations95
US6242551B1Jun 5, 2001
Polymeric colorant and colored material for ocular lens using the colorant
MENICON CO LTD33 citations92
US7588334B2Sep 15, 2009
Contact lens
MENICON CO LTD41 citations91
US5580498ADec 3, 1996
Method of producing contact lens with identifying mark permeating into lens
MENICON CO LTD32 citations90
US6015511AJan 18, 2000
Method for producing an intraocular lens
MENICON CO LTD10 citations74
US6355190B1Mar 12, 2002
Method of molding ophthalmic lens product, and mold assembly used in the method
MENICON CO LTD11 citations73
US6320008B2Nov 20, 2001
Polymeric colorant and colored material for ocular lens using the colorant
MENICON CO LTD12 citations73
US5516467AMay 14, 1996
Process for producing a tinted contact lens
MENICON CO LTD17 citations72
US7662937B2Feb 16, 2010
Polymerizable dye and ophthalmic lens containing the same
MENICON CO LTD3 citations60
US12029823B2Jul 9, 2024
Ocular device case and refill container used for the ocular device case
MENICON CO LTD0 citations57