Tetsuro Narikawa has been granted 36 US patents while listed as an inventor at Casio Computer Co.. The first was granted in 2008 and the most recent in December 2025. Tetsuro Narikawa ranks #92,222 of 4,157,543 US inventors in our database (top 2.2%). Patent records list Tetsuro Narikawa in Hamura, JP.