any person who copies a registered design or model unlawfully or in such a way that a difference between the original and the copy can only be discovered by careful comparison; however, a mere change of colour shall not be regarded as a difference 登録された意匠又はひな形を,不法に又は原本と複製の相違が慎重に比較しなければ発見できないような方法で複製する者。ただし,色彩の単なる変更は,相違とはみなされない - 特許庁