45 Utility and 3 Design Patents
#2,157 in Tokyo
#9,613 in Japan
#46,623 in the World
rank by utility patentsForward Citations = 232
Company Filing History:

Dowa Electronics Materials Co., Ltd.
Fuji Xerox Co., Ltd.
4. 2 out of 1,271

5. 2 out of 31
Dowa Holdings Co., Ltd.
where one patent can have more than one assignee
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