13 Utility Patents
#3,324 in Osaka
#63,483 in Japan
#297,277 in the World
Forward Citations = 34
Company Filing History:

Koyo Seiko Company, Ltd.
Kyodo Yushi Co., Ltd.
4. 1 out of 35
Nippon Polyurethane Industry Co., Ltd.
where one patent can have more than one assignee
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