29 Utility and 1 Design Patents
#4,404 in Tokyo
#20,822 in Japan
#97,089 in the World
rank by utility patentsForward Citations = 179
Company Filing History:
Dipsol Chemicals Co., Ltd.


4. 1 out of 151

5. 1 out of 5
Ihi Infrastructure Systems Co., Ltd.
where one patent can have more than one assignee
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