72 Utility Patents
#1 in Iwaki
#3,452 in Japan
#18,789 in the World
Forward Citations = 1,096
Company Filing History:


Toyo Boseki Kabushiki Kaisha
4. 2 out of 2
Kureha Kagaku Kagyo K.k.
5. 1 out of 381

where one patent can have more than one assignee
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