12 Utility Patents
#80 in Tachikawa
#68,190 in Japan
#314,592 in the World
Forward Citations = 163
Company Filing History:

Hitachi, Ltd.
Hitachi Koki Co., Ltd.
4. 1 out of 1
Hitachi Metals Co., Ltd.
5. 1 out of 3
Hitachi Koki
where one patent can have more than one assignee
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