Aichi Steel Works, Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 282
 
  
 
A61C DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE 156
 
  
 
B29K INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 130
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1101
 
  
 
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

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6113846 Production apparatus for rare earth anisotropic magnet powdersDec 17, 98Sep 05, 00[C21D]
6056830 Anisotropic magnet powders and their production methodOct 08, 97May 02, 00[H01F]
6007757 Method of producing an anisotropic bonded magnetJan 22, 96Dec 28, 99[B29C]
5886070 Production method for anisotropic resin-bonded magnetsJul 01, 97Mar 23, 99[B29C, B29K, C08K]
5851312 Production method, production apparatus and heat treatment apparatus for anisotropic magnet powderJul 11, 97Dec 22, 98[H01F]
5678998 Dental magnetic attachmentSep 20, 95Oct 21, 97[A61C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6336064 Magnetic apparatus for detecting position of vehicleExpiredMar 28, 00Jan 01, 02[G06F]
6203325 Dental magnetic attachment and its fixing method including spacerExpiredOct 05, 99Mar 20, 01[A61C]
6132488 Process of treating waste containing zinc oxideExpiredAug 14, 98Oct 17, 00[C22B]
6083294 Method of treating dust exhausted from melting furnaceExpiredJul 16, 97Jul 04, 00[C22B, C21B]
5931676 Dental attachmentExpiredAug 27, 96Aug 03, 99[A61C]
5871561 Method of treating dusts containing oxidesExpiredMay 30, 96Feb 16, 99[C22B]
5645937 Thin film layered memberExpiredDec 28, 95Jul 08, 97[B32B]
5643491 Rare earth magnetic powder, its fabrication method, and resin bonded magnetExpiredAug 17, 94Jul 01, 97[H01F]
5493766 Process for hot working continuous-cast bloom and steel ingotExpiredSep 09, 93Feb 27, 96[B21B]
5468522 Method of manufacturing a composite magnetic componentExpiredAug 31, 93Nov 21, 95[B05D]
5442946 Steel stock shaping apparatus provided with guide apparatus and steel stock shaping processExpiredJun 29, 93Aug 22, 95[B21B]
5403545 Bearing steelExpiredDec 14, 92Apr 04, 95[C22C]
5362338 Non-heat treating steel for hot forgingExpiredMar 04, 93Nov 08, 94[C22C]
5103173 Permeameter having a differential transformer probe with a reduced distance between the detecting coilsExpiredMar 04, 91Apr 07, 92[G01N, G01R]
5074141 Bolster apparatus for press-forming workpiecesExpiredOct 27, 89Dec 24, 91[B21D]
5017247 Rare earth magnet alloyExpiredDec 26, 89May 21, 91[H01F]
5013243 Denture attachmentExpiredJan 29, 90May 07, 91[A61C]
5009723 Method for manufacturing high strength non-magnetic stainless steelExpiredJul 05, 89Apr 23, 91[C21D]
5009843 Spring steel having good durability and sag-resistanceExpiredMay 22, 90Apr 23, 91[C22C]
5000797 Method for producing a stainless steel having a good corrosion resistance and a good resistance to corrosion in seawaterExpiredJun 06, 90Mar 19, 91[C21D]

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