19 Utility and 2 Design Patents
#7,727 in Tokyo
#39,118 in Japan
#180,830 in the World
rank by utility patentsForward Citations = 481
Company Filing History:

Ntt Data Communications Systems Corporation

4. 3 out of 15,722

5. 3 out of 8
Nec Communications Systems, Ltd.
where one patent can have more than one assignee
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