14 Utility and 2 Design Patents
#250 in Utsunomiya
#58,199 in Japan
#271,038 in the World
rank by utility patentsForward Citations = 343
Company Filing History:
Mitsui Kinzoku Kogyo Kabushiki Kaisha
Mitsui Kinzoku Kogyo K.k.
Mitsui Mining & Smelting Company, Ltd.
4. 1 out of 264
5. 1 out of 21,815

where one patent can have more than one assignee
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