Masanori Tsuzuki has been granted 8 US patents while listed as an inventor at Idemitsu Kosan Co.. The first was granted in 1990 and the most recent in May 2015. Masanori Tsuzuki ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Masanori Tsuzuki in Sodegaura, JP.