17 Utility Patents
#8,852 in Tokyo
#45,276 in Japan
#210,204 in the World
Forward Citations = 285
Company Filing History:
Kakizaki Manufacturing Co., Ltd.

Sumitomo Metal Industries, Inc.
4. 2 out of 40
Sumitomo Sitix Corporation
5. 1 out of 832,492 patents
Other
where one patent can have more than one assignee
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