15 Utility Patents
#114 in Mito
#53,140 in Japan
#247,061 in the World
Forward Citations = 238
Company Filing History:
Nippon Telegraph and Telephone Public Corporation

Sumitomo Electric Ind., Inc.
4. 1 out of 1
Sumitono Electric Inds., Ltd.
5. 1 out of 21
Nippon Telephone and Telegraph Corporation
where one patent can have more than one assignee
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