SY

Sigeki Yamamura

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
📍 Hitachinaka, JP: #1,699 of 2,447 inventorsTop 70%
Overall (All Time): #3,888,765 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5061356 Vacuum treatment apparatus and vacuum treatment method Shigeru Tanaka, Eiji Setoyama, Shinzou Oikawa 1991-10-29