92 Utility and 1 Design Patents
#468 in Tokyo
#1,944 in Japan
#11,549 in the World
rank by utility patentsForward Citations = 849
Company Filing History:

Daiichi Pharmaceutical Co., Ltd.
Sumco Corporation
4. 5 out of 440

5. 2 out of 52,633

where one patent can have more than one assignee
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