Daisuke Usui has been granted 10 US patents while listed as an inventor at Fujitsu Limited. The first was granted in 2012 and the most recent in December 2022. Daisuke Usui ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Daisuke Usui in Kawasaki, CA, JP.