AIWA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 5133
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 5237
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 163
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 1101
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 133
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR 134
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 150

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6341108 Audio reproducing deviceAug 27, 99Jan 22, 02[G11B]
D396721 Radio receiverOct 21, 97Aug 04, 98[1403]
5774315 Power surge suppression circuit for hot plug environmentsAug 19, 96Jun 30, 98[H02H]
D395424 Data storage systemMar 27, 96Jun 23, 98[1402]
D395290 Bus cover for data storage subsystemsMar 27, 96Jun 16, 98[1402]
D389467 Expansion unit for data storage subsystemsMar 27, 96Jan 20, 98[1402]
5673474 Method of fabricating a thin film magnetic head including layered magnetic side polesSep 30, 96Oct 07, 97[G11B]
5639323 Method for aligning miniature device componentsFeb 17, 95Jun 17, 97[B32B]
5620581 Apparatus for electroplating metal films including a cathode ring, insulator ring and thief ringNov 29, 95Apr 15, 97[C25D, C25B, B05B]
5621594 Electroplated thin film conductor coil assemblyFeb 17, 95Apr 15, 97[G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6633443 Peak shift correction circuit and magnetic storage medium playback apparatusExpiredAug 29, 95Oct 14, 03[G11B]
6631111 Recording and reproducing apparatus provided with teletext recording capabilityExpiredJun 12, 00Oct 07, 03[G11B]
6562251 Chemical-mechanical contouring (CMC) method for forming a contoured surface using a stair-step etchExpiredJul 26, 00May 13, 03[G11B]
6549508 Turntable and disk driving deviceExpiredAug 10, 00Apr 15, 03[G11B]
6529449 Magneto-optical head involving solid immersion lens with two-layer heat-dispersive coilExpiredJul 26, 00Mar 04, 03[G11B]
2002/0095,245 Electronic deviceAbandonedDec 26, 01Jul 18, 02[G05D]
6417109 Chemical-mechanical etch (CME) method for patterned etching of a substrate surfaceExpiredJul 26, 00Jul 09, 02[H10L]
6417989 Multiple-gap magnetic thin-film head with improved read/write coil arrangementExpiredJun 14, 00Jul 09, 02[G11B]
6411808 Portable terminal equipmentExpiredMar 08, 99Jun 25, 02[H04B]
2002/0059,057 Device for reproducing information recorded on a recording medium, method for recording information recorded on a recording medium and method for displaying the informationAbandonedJan 10, 02May 16, 02[G06F]
6324397 Portable terminal equipmentExpiredMar 15, 99Nov 27, 01[H04J]
6172834 System and method for adjusting the speed of tapeExpiredJul 24, 98Jan 09, 01[G11B]
6166879 Thin film magnetic head with contoured surfaceExpiredMay 18, 99Dec 26, 00[G11B]
6093453 Electroless plating methodExpiredMay 17, 99Jul 25, 00[B05D]
6091581 Thin film magnetic head including a separately deposited diamond-like carbon gap structure and magnetic control wellsExpiredFeb 10, 97Jul 18, 00[G11B]
6069015 Method of fabricating thin film magnetic head including durable wear layer and non-magnetic gap structureExpiredSep 01, 98May 30, 00[H01L, G11B]
6060879 Current magnitude sensing circuitExpiredAug 12, 96May 09, 00[G08B, G01P, G01R]
6058080 Disc-position display for auto disc changerExpiredSep 18, 95May 02, 00[G11B]
6000654 Slidable tape drive assemblyExpiredFeb 24, 98Dec 14, 99[G11B]
5950301 Method for fabricating thin flim magnetic head including an elevated gap structureExpiredNov 26, 97Sep 14, 99[G11B]

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