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发明名称
Leuco dyes and recording materials using the same
摘要
申请公布号
US5024699(A)
申请公布日期
1991.06.18
申请号
US19900487138
申请日期
1990.03.02
申请人
RICOH COMPANY, LTD.
发明人
IIYAMA, KIYOTAKA;HAYAKAWA, KUNIO;NAKATA, MASAHIRO;KODERA, KAORU;MIYAZAKI, OSAMU
分类号
B41M5/136;C09B23/14
主分类号
B41M5/136
代理机构
代理人
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