Hitachi Instrument Engineering Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 8120
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 4202
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 3444
 
  
 
B01D SEPARATION 2132
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
C11D DETERGENT COMPOSITIONS 164
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 158
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6542830 Process control systemSep 10, 98Apr 01, 03[H01L]
6472663 Electron microscopeOct 29, 98Oct 29, 02[H01J]
6314374 Data processing apparatus for chromatographMay 01, 00Nov 06, 01[G06F]
6148266 Data processing apparatus for chromatographFeb 22, 96Nov 14, 00[G06F]
5903004 Energy dispersive X-ray analyzerAug 14, 97May 11, 99[H01J]
5898177 Electron microscopeJul 24, 97Apr 27, 99[H01J]
5789252 Method of washing container used for reaction of body liquid sample and reagentOct 17, 96Aug 04, 98[G01N, C11D]
5670379 Chromatograph system and method of useJan 13, 95Sep 23, 97[G01N]
5458003 Electromagnetic flow meterNov 30, 92Oct 17, 95[G01F]
5424550 Charged particle beam exposure apparatusJan 21, 94Jun 13, 95[H01J]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6675107 Data processing apparatus for chromatographExpiredDec 16, 02Jan 06, 04[G06F]
6529836 Data processing apparatus for chromatographExpiredAug 29, 01Mar 04, 03[G06F]
6052655 System for converting input/output signals where each amplifier section comprises a storage unit containing information items relating to an associated terminal endExpiredMar 17, 98Apr 18, 00[G06F]
5972772 Electron beam drawing processExpiredSep 03, 97Oct 26, 99[H01L]
5721942 Personal information display system for serving large capacities of general information to user-designated stations at user-designated timesExpiredNov 13, 91Feb 24, 98[G06F]
5684315 Semiconductor memory device including memory cells each having an information storage capacitor component formed over control electrode of cell selecting transistorExpiredDec 23, 94Nov 04, 97[H01L]
5278407 Secondary-ion mass spectrometry apparatus using field limiting methodExpiredApr 24, 92Jan 11, 94[H01J]
5276499 SpectrophotometerExpiredOct 02, 90Jan 04, 94[G01J]
5270212 Cell analysis apparatusExpiredFeb 26, 92Dec 14, 93[G01N]
5185523 Mass spectrometer for analyzing ultra trace element using plasma ion sourceExpiredMar 10, 92Feb 09, 93[H01J]
5086227 Secondary ion mass analyzing apparatusExpiredOct 18, 90Feb 04, 92[H01J, G01N]
5047647 Electron beam lithography apparatusExpiredSep 14, 90Sep 10, 91[H01J]
5008537 Composite apparatus with secondary ion mass spectrometry instrument and scanning electron microscopeExpiredSep 20, 89Apr 16, 91[H01J]
4992661 Method and apparatus for neutralizing an accumulated charge on a specimen by means of a conductive lattice deposited on the specimenExpiredAug 17, 88Feb 12, 91[G01N]
4939365 Automatic preliminary irradiation apparatus in transmission electron microscopeExpiredAug 30, 88Jul 03, 90[H01J]
4737787 Two-wire communication systemExpiredOct 16, 86Apr 12, 88[G08C]
4728189 Atomic absorption spectrophotometerExpiredJan 23, 87Mar 01, 88[G01J, G01N]

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