17 Utility and 2 Design Patents
#8,820 in Tokyo
#45,204 in Japan
#209,733 in the World
rank by utility patentsForward Citations = 408
Company Filing History:


Other
4. 2 out of 2,106

5. 1 out of 1
Koushi Yamaguchi
where one patent can have more than one assignee
Get your Inventor Badge Today