39 Utility Patents
#5 in Kuwana
#12,571 in Japan
#59,753 in the World
Forward Citations = 224
Company Filing History:

Ntn-rulon Industries, Co., Ltd.
Sumitomo Chemical Company, Limited
4. 2 out of 832,540 patents
Other
5. 2 out of 122

where one patent can have more than one assignee
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