90 Utility and 1 Design Patents
#455 in Tokyo
#1,967 in Japan
#11,455 in the World
rank by utility patentsForward Citations = 810
Company Filing History:



Daiichi Pharmaceutical Co., Ltd.

Sumco Corporation
4. 5 out of 430

5. 1 out of 75
Chlorine Engineers Corp., Ltd.
where one patent can have more than one assignee
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