Inventor · disambiguated record
Masamichi Tsukada
Also filed as: TSUKADA MASAMICHI
15 granted patents·265 citations·filing 1982–1999
94Inventor score
Files withHITACHI LTD15
Top patents by PatentIndex Score
15 records- 0186US6423965B1Mass spectrometerHITACHI LTD·Filed 1999·Granted Jul 23, 2002·46 cites·15 claims
- 0281US6248998B1Plasma ion source mass spectrometerHITACHI LTD·Filed 1998·Granted Jun 19, 2001·39 cites·2 claims
- 0377US5793039AMass spectrometer, skimmer cone assembly, skimmer cone and its manufacturing methodHITACHI LTD·Filed 1996·Granted Aug 11, 1998·31 cites·12 claims
- 0465US5283624AMulti-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic methodHITACHI LTD·Filed 1990·Granted Feb 1, 1994·29 cites·32 claims
- 0564USD307398SAtomic absorption spectrophotometerHITACHI LTD·Filed 1987·Granted Apr 24, 1990·11 cites·1 claims
- 0663US5202562AHigh sensitive element analyzing method and apparatus of the sameHITACHI LTD·Filed 1991·Granted Apr 13, 1993·16 cites·15 claims
- 0761US5035505AAtomic absorption spectroscopy photometerHITACHI LTD·Filed 1990·Granted Jul 30, 1991·24 cites·16 claims
- 0860US5616918APlasma ion mass spectrometer and plasma mass spectrometry using the sameHITACHI LTD·Filed 1995·Granted Apr 1, 1997·14 cites·16 claims
- 0955US4553840ADouble monochrometerHITACHI LTD·Filed 1982·Granted Nov 19, 1985·13 cites·15 claims
- 1044US4867562AAtomic absorption spectrophotometerHITACHI LTD·Filed 1988·Granted Sep 19, 1989·10 cites·6 claims
- 1141US5130537APlasma analyzer for trace element analysisHITACHI LTD·Filed 1991·Granted Jul 14, 1992·9 cites·10 claims
- 1240US5763877AAnalyzer using plasma and analysis method using plasma, interface used for the same and sample introducing component used for the sameHITACHI LTD·Filed 1996·Granted Jun 9, 1998·7 cites·12 claims
- 1337US5108178AAtomic absorption spectrophotometer and electromagnetic shut-off valve for use thereinHITACHI LTD·Filed 1990·Granted Apr 28, 1992·6 cites·21 claims
- 1437US4840484AAtomic absorption spectrophotometer with furnace at pressure equal or near light source pressureHITACHI LTD·Filed 1988·Granted Jun 20, 1989·6 cites·7 claims
- 1533US4890919AAtomic absorption spectrophotometerHITACHI LTD·Filed 1988·Granted Jan 2, 1990·4 cites·8 claims
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