5 Utility Patents
#28,916 in Tokyo
#162,289 in Japan
#824,752 in the World
Forward Citations = 31
Company Filing History:
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Nippon Steel & Sumitomo Metal Corporation
Ukima Colour & Chemicals Mfg. Co., Ltd.
where one patent can have more than one assignee
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