DAI-ICHI HIGH FREQUENCY CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 3105
 
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 278
 
 
 
A61F FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS 1140
 
 
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1101
 
 
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 121
 
 
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 147
 
 
 
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 189
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1150
 
 
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 133
 
 
 
C22C ALLOYS 169

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0296,906 FERROMAGNETIC-PARTICLE MANUFACTURING APPARATUSOct 06, 14Oct 13, 16[H01F, C01G, H05B, B22F, B01J]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8214053 Body heating deviceAug 29, 06Jul 03, 12[A61N, A61F]
8042498 Superheated steam generatorDec 13, 06Oct 25, 11[F22G, H05B, F28F, G21D, F24F]
7807273 Alloy-coated boiler part and method of welding self-fluxing alloy-coated boiler partMar 24, 05Oct 05, 10[B23K, B32B, F22B, C22C]
7513061 Sludge dehydrating processor for converting sludge including organic substance into resources of low water contentMay 26, 06Apr 07, 09[F26B]
7297908 Removing method of tubeApr 07, 05Nov 20, 07[H05B]
6778057 Inductor for heating inner-circumference of holeOct 09, 02Aug 17, 04[H01F]
5713130 Partially thick-walled elongated metallic member and methods of making and connecting the sameDec 28, 94Feb 03, 98[B21K]
5397876 High frequency bolt heater having induction heating coilJan 06, 94Mar 14, 95[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0300,379 BOILER WATERWALL PANELABANApr 18, 07Dec 02, 10[F22B]
7169480 Clad pipeExpiredFeb 01, 05Jan 30, 07[B32B]
5123989 Resin-bonding methodExpiredJun 11, 90Jun 23, 92[B32B]
5068491 Bus bar for power supply with coolant flow passagesExpiredJul 05, 90Nov 26, 91[H02G]
4923730 Anti-fouling surface structure, anti-fouling covering material and method of planting ribbons for producing anti-fouling surface structure and covering materialExpiredAug 02, 88May 08, 90[B32B]
4604813 Apparatus for dimensional inspection of a pipe spool, or for making or cutting and finishing at its both endsExpiredFeb 20, 85Aug 12, 86[A61B]
4479372 Method of manufacturing metallic bent pipeExpiredAug 12, 83Oct 30, 84[B21D]
4442331 Method and apparatus of induction heating a metallic elongated material having different thickness sectionsExpiredJan 20, 82Apr 10, 84[H05B]
4412442 Method for bending a metal pipeExpiredSep 17, 80Nov 01, 83[B21D]

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