38 Utility Patents
#1 in Oarai
#13,133 in Japan
#62,393 in the World
Forward Citations = 249
Company Filing History:

Hitachi Kyowa Engineering Co., Ltd.
Hitachi Engineering Co., Ltd.
4. 2 out of 832,492 patents
Other
5. 2 out of 29

where one patent can have more than one assignee
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