12 Utility Patents
#69 in Tama
#68,552 in Japan
#318,952 in the World
Forward Citations = 647
Company Filing History:
Hitachi Keiyo Engineering Co., Ltd.

4. 1 out of 13
Hitachi Chubu Software, Ltd.
5. 1 out of 149

where one patent can have more than one assignee
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