Jun-etsu Satoh has been granted 5 US patents while listed as an inventor at Dai Nippon Toryo Co.. The first was granted in 2009 and the most recent in May 2012. Jun-etsu Satoh ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Jun-etsu Satoh in Akita, JP.