Inventor
YOKOYAMA YASUHIRO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA YASUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MENICON CO LTD
10 patentsUS5416132AMay 16, 1995
Ocular lens material
MENICON CO LTD258 citations98
US5346946ASep 13, 1994
Ocular lens material
MENICON CO LTD345 citations98
US6071111AJun 6, 2000
Mold assembly for forming contact lens blank
MENICON CO LTD35 citations91
US5556929ASep 17, 1996
Ocular lens material
MENICON CO LTD36 citations91
US5244470ASep 14, 1993
Method for marking a water-absorptive contact lens: dyeing dry lens with a mark using reduced vat dye and then making the dye insoluble
MENICON CO LTD42 citations90
US7165840B2Jan 23, 2007
Process for producing contact lens having a mark and contact lens having a mark obtained thereby
MENICON CO LTD8 citations73
US5416180AMay 16, 1995
Soft ocular lens material
MENICON CO LTD13 citations73
US5516467AMay 14, 1996
Process for producing a tinted contact lens
MENICON CO LTD17 citations72
US5777032AJul 7, 1998
Ocular lens and a method for its production
MENICON CO LTD3 citations61
US9963483B2May 8, 2018
Process for producing self-assembling peptide derivatives
MENICON CO LTD0 citations47