20 Utility Patents
#7,270 in Tokyo
#36,543 in Japan
#168,724 in the World
Forward Citations = 195
Company Filing History:
Tonen Corporation
Toa Nenryo Kogyo Kabushiki Kaisha
Other
4. 3 out of 39
Toa Nenryo Kogyo, K. K.
5. 1 out of 1,707

where one patent can have more than one assignee
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