31 Utility Patents
#1,388 in Yokohama
#18,710 in Japan
#87,612 in the World
Forward Citations = 156
Company Filing History:

Hitachi Consumer Electronics Co., Ltd.

4. 5 out of 832,627 patents
Other
5. 2 out of 6
Tohken Co., Ltd.
where one patent can have more than one assignee
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