23 Utility Patents
#2,043 in Yokohama
#29,855 in Japan
#138,283 in the World
Forward Citations = 267
Company Filing History:
Nippon Furnace Kogyo Kabushiki Kaisha
Nippon Furnace Kogyo Kaisha, Ltd.

4. 3 out of 36,257

5. 2 out of 614

where one patent can have more than one assignee
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