67 Utility and 3 Design Patents
#961 in Tokyo
#4,090 in Japan
#21,649 in the World
rank by utility patentsForward Citations = 485
Company Filing History:

Oki Electric Industry Co., Ltd.

4. 4 out of 24
Ntt Facilities, Inc.
5. 3 out of 5,637

where one patent can have more than one assignee
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