YK

Yoshio Kai

TO Toto: 2 patents #431 of 1,113Top 40%
Overall (All Time): #2,256,427 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5706529 Water closet Toshifumi Yoneda 1998-01-13
5170515 Water closet Toshifumi Yoneda 1992-12-15