AN

Akio Nadamura

HC Hitachi Engineering & Services Co.: 1 patents #59 of 129Top 50%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
📍 Hitachinaka, JP: #1,699 of 2,447 inventorsTop 70%
Overall (All Time): #3,671,887 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6004377 System for collecting and refining SF.sub.6 gas and method therefor Shin Tamata, Toru Tsubaki, Koji Ito, Toshio Ohi, Hiromoto Ohno 1999-12-21