80 Utility and 1 Design Patents
#16 in Hitachi
#2,710 in Japan
#15,221 in the World
rank by utility patentsForward Citations = 1,437
Company Filing History:

Other

4. 3 out of 8
Hitachi Haramachi Electronics Co., Ltd.
5. 2 out of 1,056

where one patent can have more than one assignee
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