Inventor
SHIMOYASHIKI SHIGEHIRO
JP4 patents
Patents
4 patentsUS4259861AApr 7, 1981
Method and apparatus for determining whether a fluid is leaking
HITACHI LTD18 citations71
US4996020AFeb 26, 1991
A system for restraining diffusion of tritium
HITACHI LTD7 citations70
US4893792AJan 16, 1990
Cold trap
HITACHI LTD9 citations65
US4938662AJul 3, 1990
Mechanical pump equipment
HITACHI LTD2 citations58