Kawamura Sangyo Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
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 192
 
  
 
D21H PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 137
 
  
 
H01T SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES 125

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8709193 Method of manufacturing adhesive-free laminate of aramid paper and polyphenylene sulfide film, and insulation material and insulation structure for rotating electric machineryJul 29, 09Apr 29, 14[B32B]
8178195 Biaxially oriented film laminated board, electrical insulation board and machine partNov 21, 06May 15, 12[B32B]
7967941 Adhesive-free aramid-polyester laminate, method of manufacturing the same and apparatus for manufacturing the sameJan 25, 08Jun 28, 11[B32B]
7927461 Method for manufacturing an aramid paper with an applied plasma treatmentJun 19, 07Apr 19, 11[D21H]
7411773 Electrostatic chucking device and manufacturing method thereofFeb 10, 04Aug 12, 08[H01T]
6501045 Method and apparatus for controlling the taper angle of the walls of laser machined featuresApr 06, 00Dec 31, 02[B23K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0128,988 ELECTRIC MOTOR INSULATING SHEET AND A MANUFACTURING METHOD THEREFORAbandonedJun 11, 10May 24, 12[B32B]

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