29 Utility and 33 Design Patents
#108 in Tokyo
#331 in Japan
#4,299 in the World
rank by design patentsForward Citations = 0
Company Filing History:
Other
Lec, Inc.

4. 1 out of 1
Kikuo Yamada
5. 1 out of 1
Chiyoe Yamada
where one patent can have more than one assignee
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