Inventor
YUKAWA SHIGEO
JP7 patents
Patents
7 patentsUS8003197B2Aug 23, 2011
Retroreflective sheet for security and method for manufacturing the same
KIWA CHEMICAL IND CO LTD12 citations83
US7238644B2Jul 3, 2007
Laminate for printing and, printing method and printed matter using the same
KIWA CHEMICAL IND CO LTD17 citations83
US7709417B2May 4, 2010
Security sticker and method for manufacturing the same
KIWA CHEMICAL IND CO LTD14 citations81
US7303292B2Dec 4, 2007
Hue variable retroreflective sheet
KIWA CHEMICAL IND CO LTD13 citations78
US7906193B2Mar 15, 2011
Retroreflective sheet
KIWA CHEMICAL IND CO LTD18 citations76
US7238643B2Jul 3, 2007
Laminated body for printing with temporary display layer and printing method using the same
KIWA CHEMICAL IND CO LTD2 citations59
US7784952B2Aug 31, 2010
Enclosed lens type retroreflective sheet with wide-angle reflective performance and external illumination system
KIWA CHEMICAL IND CO LTD6 citations56