15 Utility and 1 Design Patents
#10,337 in Tokyo
#53,365 in Japan
#248,686 in the World
rank by utility patentsForward Citations = 169
Company Filing History:
Nippon Telegraph and Telephone Public Corporation

Other
4. 2 out of 2,028

5. 1 out of 5,290

where one patent can have more than one assignee
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