Inventor

OKUMOTO TOYOHARU

JP15 patents

⚠️ This page may combine multiple inventors who share the name “OKUMOTO TOYOHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

12 patents

US5308977AMay 3, 1994

Plasma mass spectrometer

HITACHI LTD61 citations95

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

US5252827AOct 12, 1993

Method and apparatus for analysis of gases using plasma

HITACHI LTD21 citations90

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

US5108178AApr 28, 1992

Atomic absorption spectrophotometer and electromagnetic shut-off valve for use therein

HITACHI LTD6 citations73

US4867562ASep 19, 1989

Atomic absorption spectrophotometer with furnace at pressure equal or near light source pressure

HITACHI LTD6 citations62

HITACHI HIGH TECH CORP

3 patents

US7161141B2Jan 9, 2007

Ion trap/time-of-flight mass spectrometer and method of measuring ion accurate mass

HITACHI HIGH TECH CORP15 citations84

US7186973B2Mar 6, 2007

Ion trap/time-of-flight mass analyzing apparatus and mass analyzing method

HITACHI HIGH TECH CORP11 citations83

US6914239B2Jul 5, 2005

System for analyzing mass spectrometric data

HITACHI HIGH TECH CORP13 citations83