Patents
Patents for H01J 49 - Particle spectrometers or separator tubes (20,265)
07/1994
07/05/1994US5327475 Soft x-ray submicron lithography using multiply charged ions
07/05/1994US5326978 Charged particle detector
06/1994
06/28/1994US5325021 Radio-frequency powered glow discharge device and method with high voltage interface
06/28/1994US5324939 Method and apparatus for ejecting unwanted ions in an ion trap mass spectrometer
06/28/1994US5324938 Method and apparatus for detecting strippable substances in liquids
06/23/1994WO1994014184A1 Quadrupole mass filter
06/22/1994EP0602983A1 Hybrid photomultiplier tube with high sensitivity
06/22/1994EP0602982A1 Focused electron-bombarded detector
06/22/1994EP0602764A1 Inductively coupled plasma spectrometers and radio - frequency power supply therefor
06/22/1994CN2169921Y Auto-loading specimen boat for transmission electric mirror
06/18/1994CA2094116A1 Inductively coupled plasma spectrometers and radio-frequency power supply therefor
06/15/1994EP0601689A1 Secondary ion mass spectrometric analysis of metals and method of preparing standard sample therefor
06/15/1994EP0601118A1 Mass spectrometry method using supplemental ac voltage signals
06/14/1994US5321262 Electron imaging band pass analyser for a photoelectron spectromicroscope
06/07/1994US5318752 Method and apparatus for sampling a reactive atmosphere into a vacuum chamber of an analyzer
05/1994
05/31/1994US5317259 DC-based magnetic field controller
05/31/1994US5317151 Miniaturized lightweight magnetic sector for a field-portable mass spectrometer
05/31/1994US5316955 Furnace atomization electron ionization mass spectrometry
05/24/1994US5315120 Univane RFQ
05/24/1994US5315113 Scanning and high resolution x-ray photoelectron spectroscopy and imaging
05/24/1994US5314827 Isotopic composition analyzer
05/17/1994US5313061 Miniaturized mass spectrometer system
05/11/1994WO1994007258A3 Electron energy spectrometer
05/11/1994EP0347452B1 Counterflow leak detector with high and low sensitivity operating modes
05/10/1994US5311016 Apparatus for preparing a sample for mass spectrometry
05/03/1994US5308979 Analysis of hydrogen isotope mixtures
05/03/1994US5308978 Method of preparing a sample for analysis
05/03/1994US5308977 Plasma mass spectrometer
04/1994
04/27/1994EP0594421A1 Electron spectrometer
04/27/1994EP0594394A1 Electron spectroscopy analyzer and a method of correcting a shift of spectral line in electron spectroscopy
04/26/1994US5306910 Time modulated electrified spray apparatus and process
04/26/1994US5306412 Method and apparatus for improving electrospray ionization of solute species
04/26/1994CA1328930C Endotracheal tube and mass spectrometer
04/19/1994US5304799 Cycloidal mass spectrometer and ionizer for use therein
04/19/1994US5304798 Housing for converting an electrospray to an ion stream
04/19/1994US5304797 Gas analyzer for determining impurity concentration of highly-purified gas
04/19/1994US5304796 Atmospheric pressure ionization mass spectroscopy method including a silica gel drying step
04/12/1994US5302827 Quadrupole mass spectrometer
04/12/1994US5302826 Quadrupole trap improved technique for collisional induced disassociation for MS/MS processes
04/06/1994EP0590308A2 Scanning and hig resoloution x-ray photo electron spectroscopy and imaging
04/06/1994EP0590042A1 Mass spectrometry apparatus and method relating thereto
04/06/1994EP0589990A1 Sample holder for use in a mass spectrometer
04/05/1994US5300774 Time-of-flight mass spectrometer with an aperture enabling tradeoff of transmission efficiency and resolution
04/05/1994US5300773 Pulsed ionization ion mobility sensor
04/05/1994US5300772 Quadruple ion trap method having improved sensitivity
04/05/1994US5300771 Method for determining the molecular weights of polyatomic molecules by mass analysis of their multiply charged ions
04/05/1994US5300276 Processes for preparing hydrogen gas and determining ratio of masses between hydrogen isotopes therein
03/1994
03/31/1994WO1994007258A2 Electron energy spectrometer
03/31/1994WO1994007257A1 Reducing interferences in plasma source mass spectrometers
03/31/1994DE4232509A1 Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation
03/30/1994EP0588952A1 Method and apparatus for improving electrospray ionization of solute species
03/29/1994US5298746 Method and device for control of the excitation voltage for ion ejection from ion trap mass spectrometers
03/29/1994US5298745 Multilayer multipole
03/29/1994US5298744 Mass spectrometer
03/29/1994US5298743 Mass spectrometry and mass spectrometer
03/23/1994EP0587707A1 Time-of-flight mass spectrometer with an aperture enabling tradeoff of transmission efficiency and resolution
03/23/1994EP0339047B1 Thermal cycle recirculating pump for isotope purifier
03/22/1994US5296816 Integrated circuit sensor and detector and spectrometers incorporating the sensor
03/16/1994EP0587448A2 Mass spectrometer with adjustable aperture mechanism
03/16/1994EP0587369A2 Apparatus comprising means for mass spectrometry
03/16/1994EP0586543A1 Microelectrospray method and apparatus
03/15/1994US5294797 Method and apparatus for generating ions from thermally unstable, non-volatile, large molecules, particularly for a mass spectrometer such as a time-of-flight mass spectrometer
03/09/1994EP0585487A1 Apparatus and process for photoionization and detection
03/09/1994EP0585297A1 Off-axis interface for a mass spectrometer
03/09/1994EP0312587B1 Plasma focus apparatus with field distortion elements
03/03/1994WO1994005034A1 Time of flight mass spectrometer, ion source, and methods of preparing a sample for mass analysis and of mass analyzing a sample
03/03/1994WO1994004252A1 Method for generating filtered noise signal and broadband signal having reduced dynamic range in mass spectrometry
03/03/1994DE4228190A1 Analysator für geladene Teilchen Analyser for charged particles
03/02/1994EP0584923A1 An analytical electron microscope and a method of operating such an electron microscope
03/02/1994EP0584262A1 Tandem time-of-flight mass spectrometer.
03/01/1994US5291017 Ion trap mass spectrometer method and apparatus for improved sensitivity
03/01/1994US5291016 Electrostatic lens arrangement of multi-stages of multi-pole electrodes and mass spectrometer using the same
02/1994
02/23/1994EP0583329A1 Process for the manufacture of a multipolar elongate-electrode lens or mass filter.
02/22/1994US5289003 Probe for thermospray mass spectrometry
02/22/1994US5288644 High speed, automatic detection of mass weights of DNA fragments; mass spectrometry
02/15/1994US5286974 Charged particle energy analyzers
02/08/1994US5285066 Imaging XPS system
02/08/1994US5285064 Method and apparatus for introduction of liquid effluent into mass spectrometer and other gas-phase or particle detectors
02/08/1994US5285063 Method of detecting ions in an ion trap mass spectrometer
02/02/1994EP0581600A2 Method of operating a quadrupole ion trap at high sensitivity
02/02/1994EP0580986A1 Method of operating a quadrupole trap applied to collision induced disassociation for MS/MS processes
02/01/1994US5283436 Generation of an exact three-dimensional quadrupole electric field and superposition of a homogeneous electric field in trapping-exciting mass spectrometer (TEMS)
02/01/1994US5283199 Containing amine dopant to react with chlorine interferent
01/1994
01/26/1994EP0579952A1 Method and device for testing of bottles for contamination
01/26/1994EP0579935A1 Quadrupole ion trap technique for ion isolation
01/25/1994US5281538 Method of preparing a sample for analysis by laser desorption mass spectrometry
01/20/1994WO1994001883A1 A method for discriminative particle separation
01/20/1994WO1994001206A1 Time-of-flight direct recoil ion scattering spectrometer
01/19/1994EP0579055A1 Method and device for mass-spectrometrical testing of bottles for contamination
01/12/1994EP0578146A1 Method and device for testing of bottles for contamination
01/11/1994US5278407 Secondary-ion mass spectrometry apparatus using field limiting method
01/10/1994CA2100036A1 Process and arrangement for testing bottles for the presence of contamination
01/08/1994CA2099957A1 Process and arrangement for testing bottles for contamination
01/08/1994CA2099956A1 Process and arrangement for testing bottles for contamination
01/05/1994EP0576972A1 Ion scattering spectroscope
01/05/1994DE4232669C1 Ninety-degree deflection mass separator tube for semiconductor material ion implantation - covers inside of aluminium walls with sections of electrically conductive non-magnetic graphite of uneven surface, which sections are narrow to allow disassembly through entrance.
12/1993
12/29/1993EP0575778A1 Method and apparatus for providing tailored exitation as in Fourier transform mass spectrometry
12/29/1993EP0575777A2 Methods of using ion trap mass spectrometers
12/29/1993EP0575409A1 Isotopic-ratio plasma source mass spectrometer.
12/28/1993US5274233 Mass spectrometry method using supplemental AC voltage signals