Kenta Katsuhama has been granted 8 US patents while listed as an inventor at Hitachi. The first was granted in 2006 and the most recent in May 2012. Kenta Katsuhama ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Kenta Katsuhama in Hitachinaka, JP.