Nippon CMK Corp.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 4152
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 133
 
  
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 135
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
H01K ELECTRIC INCANDESCENT LAMPS 121
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5233754 Method for forming perforations on a printed circuit boardJun 26, 91Aug 10, 93[H05K]
5210940 Method of producing a printed circuit boardJul 22, 91May 18, 93[H01K]
5210379 Printed wiring board with electromagnetic wave shielding layerFeb 24, 92May 11, 93[H05K]
5198778 Method for inspecting printed circuit boards with through-holesApr 09, 91Mar 30, 93[G01R]
5195238 Method of manufacturing a printed circuit boardFeb 24, 92Mar 23, 93[H05K]
5180465 Etching method of forming microcircuit patterns on a printed circuit boardJul 22, 91Jan 19, 93[C23F, B44C]
5168624 Method of manufacturing printed wiring boardMar 15, 91Dec 08, 92[H05K]
5169477 Etching apparatus for forming microcircuit patterns on a printed circuit boardJul 22, 91Dec 08, 92[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5416667 Printed wiring board having an electromagnetic wave shielding layerExpiredJul 02, 93May 16, 95[H05K]
5404637 Method of manufacturing multilayer printed wiring boardExpiredApr 30, 93Apr 11, 95[H01R]
5308644 Method for manufacturing a printed wiring board having a shield layerExpiredAug 02, 91May 03, 94[C23C]
5304392 Method of manufacturing printed wiring boardExpiredJan 06, 92Apr 19, 94[B05D, B44C]
5296082 Mold for printed wiring boardExpiredMar 18, 92Mar 22, 94[B32B]
5294755 Printed wiring board having shielding layerExpiredOct 04, 91Mar 15, 94[H05U]
5291653 Manufacturing printed wiring boards having electromagnetic wave shieldingExpiredApr 16, 92Mar 08, 94[H05K]
5293004 Printed circuit board having an electromagnetic shielding layerExpiredJan 06, 92Mar 08, 94[H05K]
5277787 Method of manufacturing printed wiring boardExpiredOct 28, 92Jan 11, 94[C25D]
5277929 Method for masking through holes in manufacturing process of printed circuit boardExpiredOct 11, 91Jan 11, 94[C23C]
5274915 Method of manufacturing a printed wiring boardExpiredJun 18, 91Jan 04, 94[H05K]
5268535 Printed wiring boardExpiredAug 02, 91Dec 07, 93[H05K]
5268194 Method of packing filler into through-holes in a printed circuit boardExpiredJul 22, 91Dec 07, 93[C23C]
5266748 Printed wiring board having through-holes covered with ink layer and method of manufacture thereofExpiredMar 15, 91Nov 30, 93[H05K]
5266904 Printed circuit board with through-holes including a test land having two current measuring lands and two resistance measuring landsExpiredApr 09, 91Nov 30, 93[G01R]
5263240 Method of manufacturing printed wiring boards for motorsExpiredApr 16, 92Nov 23, 93[H05K]
5262596 Printed wiring board shielded from electromagnetic waveExpiredOct 15, 91Nov 16, 93[H05K]
5256442 Screen printing method for forming a multiplicity of printed wiring boardsExpiredMar 16, 92Oct 26, 93[B05D]
5250757 Printed wiring board having a connecting terminalExpiredApr 16, 92Oct 05, 93[H05K]
5240737 Method of manufacturing printed circuit boardsExpiredJul 22, 91Aug 31, 93[C23C]

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