YH

Yashuhide Hisada

CC Cosmo Oil Co.: 1 patents #111 of 229Top 50%
EB Ebara: 1 patents #1,014 of 1,611Top 65%
Overall (All Time): #3,883,505 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5041989 Method and apparatus for observing operating state of mechanical seal Tadashi Kataoka, Masahiro Komatu 1991-08-20