19 Utility Patents
#2,544 in Yokohama
#38,144 in Japan
#173,628 in the World
Forward Citations = 502
Company Filing History:
Hitachi, Ltd.
Casio Hitachi Mobile Communications Co., Ltd.
Hitachi Maxell, Limited
4. 1 out of 770

5. 1 out of 149

where one patent can have more than one assignee
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