53 Utility and 13 Design Patents
#1,519 in Tokyo
#6,774 in Japan
#34,000 in the World
rank by utility patentsForward Citations = 634
Company Filing History:

Tomy Kogyo Co., Ltd.

4. 4 out of 808
Mitsui Mining & Smelting Company, Ltd.
5. 3 out of 35,468

where one patent can have more than one assignee
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