6 Utility Patents
#251 in Mito
#137,033 in Japan
#670,791 in the World
Forward Citations = 48
Company Filing History:
Nippon Telegraph and Telephone Public Corporation


4. 1 out of 1
Nippon Bell Parts Co., Ltd.
5. 1 out of 1
Nihon Telecommunication Engineering Corporation
where one patent can have more than one assignee
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