47 Utility Patents
#7 in Asaka
#8,815 in Japan
#43,078 in the World
Forward Citations = 667
Company Filing History:
Tonen Chemical Corporation
Toray Battery Separator Film Co., Ltd.
Toa Nenryo Kogyo Kabushiki Kaisha
4. 5 out of 3,464

5. 4 out of 8
Toray Tonen Specialty Separator Godo Kaisha
where one patent can have more than one assignee
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