Inventor

HARATA HIROKI

JP2 patents

Patents

2 patents

US7189133B2Mar 13, 2007

Reversibly metachromatic toy

PILOT INK CO LTD7 citations71

US6946168B2Sep 20, 2005

Reversibly thermochromic ultraviolet ray-hardening ink composition and reversibly thermochromic laminate using the same

PILOT INK CO LTD6 citations60