YK

Yozo Kumagai

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
📍 Hitachinaka, JP: #1,336 of 2,447 inventorsTop 55%
Overall (All Time): #2,293,066 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5296057 High abrasion resistant aluminum bronze alloy, and sliding members using same Noboru Baba, Katsuhiko Komuro, Masateru Suwa, Mitsuo Chigasaki, Mashayoshi Kainuma +1 more 1994-03-22
4589930 Casting metal mold and method of producing the same 1986-05-20