Yuzuru Sekiguchi has been granted 2 US patents while listed as an inventor at Graphtec. The first was granted in 2012 and the most recent in February 2020. Yuzuru Sekiguchi ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Yuzuru Sekiguchi in Yokohama, JP.