KABUSHIKI KAISHA ULTRACLEAN TECHNOLOGY RESEARCH INSTITUTE

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 355
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 291
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
C23G CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS 112

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8420974 Long life welding electrode and its fixing structure, welding head, and welding methodOct 08, 02Apr 16, 13[B23K]
6416586 Cleaning methodNov 29, 99Jul 09, 02[B08B, C23G]
6220500 Welding method for fluorine-passivated member for welding, fluorine-passivation method after being weld, and welded partsAug 07, 98Apr 24, 01[B23K, C21D]
6129098 Apparatus for injecting constant quantitative chemicals and a method thereofAug 25, 98Oct 10, 00[B08B]
5985811 Cleaning solution and cleaning methodJan 08, 97Nov 16, 99[B08B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7296048 Semiconductor circuit for arithmetic processing and arithmetic processing methodExpiredAug 15, 03Nov 13, 07[G06F]
6940034 Long life welding electrode and its fixing structure, welding head, and welding methodExpiredAug 12, 03Sep 06, 05[0000]
6818320 Welding method for welded members subjected to fluoride passivation treatment, fluoride passivation retreatment method, and welded partsExpiredDec 27, 00Nov 16, 04[C25D, B21D, B32B]
6728745 Semiconductor circuit for arithmetic operation and method of arithmetic operationExpiredSep 06, 00Apr 27, 04[G06F]
6719875 Plasma process apparatusExpiredAug 03, 99Apr 13, 04[C23C, H05H]
6612898 Method for forming oxidation-passive layer, fluid-contacting part, and fluid feed/discharge systemExpiredMay 14, 99Sep 02, 03[C23C, B32B]
2003/0152,495 Gas recovering apparatus, vacuum exhausting method, and vacuum exhausting apparatusAbandonedAug 20, 02Aug 14, 03[B01D]
6436353 Gas recovering apparatusExpiredJun 12, 98Aug 20, 02[F25J, B01D]
6348157 Cleaning methodExpiredJun 12, 98Feb 19, 02[H01L, B08B]
6325081 Washing apparatus and washing methodExpiredMay 17, 99Dec 04, 01[B08B]
6199092 Semiconductor arithmetic circuitExpiredSep 22, 98Mar 06, 01[G06G]
6150851 Charge transfer amplifier circuit, voltage comparator, and sense amplifierExpiredJun 05, 98Nov 21, 00[G11C]
6039814 Cleaning method utilizing degassed cleaning liquid with applied ultrasonicsExpiredJul 03, 97Mar 21, 00[B08B]
5895509 Abrasive compositionExpiredDec 01, 97Apr 20, 99[B24D]

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