31 Utility Patents
#3,758 in Tokyo
#17,991 in Japan
#82,595 in the World
Forward Citations = 155
Company Filing History:
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4. 1 out of 42,297
Hitachi, Ltd.
where one patent can have more than one assignee
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#3,758 in Tokyo
#17,991 in Japan
#82,595 in the World
Company Filing History:
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