5 Utility Patents
#218 in Isehara
#162,357 in Japan
#825,640 in the World
Forward Citations = 168
Company Filing History:

Nippon Telegraph and Telephone Public Corporation
Nippon Telephone and Telegraph Corporation
4. 2 out of 6
Hitachi Service Engineering Co., Ltd.
5. 1 out of 5,288

where one patent can have more than one assignee
Get your Inventor Badge Today