11 Utility Patents
#3,477 in Kawasaki
#75,336 in Japan
#349,302 in the World
Forward Citations = 39
Company Filing History:

Showa Tansan Co., Ltd.

4. 1 out of 1
Nippon Sangyo Kikai Hanbai Co., Ltd.
5. 1 out of 1
Daito Valve Seisakusho Co., Ltd.
where one patent can have more than one assignee
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