Inventor
TSUKADA MASAMICHI
JP15 patents
Patents
15 patentsUS6423965B1Jul 23, 2002
Mass spectrometer
HITACHI LTD46 citations92
US6248998B1Jun 19, 2001
Plasma ion source mass spectrometer
HITACHI LTD39 citations92
US5793039AAug 11, 1998
Mass spectrometer, skimmer cone assembly, skimmer cone and its manufacturing method
HITACHI LTD31 citations92
US5283624AFeb 1, 1994
Multi-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic method
HITACHI LTD29 citations92
US5035505AJul 30, 1991
Atomic absorption spectroscopy photometer
HITACHI LTD24 citations92
US5763877AJun 9, 1998
Analyzer using plasma and analysis method using plasma, interface used for the same and sample introducing component used for the same
HITACHI LTD7 citations73
US5616918AApr 1, 1997
Plasma ion mass spectrometer and plasma mass spectrometry using the same
HITACHI LTD14 citations73
US5202562AApr 13, 1993
High sensitive element analyzing method and apparatus of the same
HITACHI LTD16 citations73
US5130537AJul 14, 1992
Plasma analyzer for trace element analysis
HITACHI LTD9 citations73
US5108178AApr 28, 1992
Atomic absorption spectrophotometer and electromagnetic shut-off valve for use therein
HITACHI LTD6 citations73
US4867562ASep 19, 1989
Atomic absorption spectrophotometer
HITACHI LTD10 citations73
US4553840ANov 19, 1985
Double monochrometer
HITACHI LTD13 citations73
USD307398SApr 24, 1990
Atomic absorption spectrophotometer
HITACHI LTD11 citations71
US4890919AJan 2, 1990
Atomic absorption spectrophotometer
HITACHI LTD4 citations62
US4840484AJun 20, 1989
Atomic absorption spectrophotometer with furnace at pressure equal or near light source pressure
HITACHI LTD6 citations62