NIPPON PRECISION CIRCUITS INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03F AMPLIFIERS 182

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7102432 Class D amplifierNov 29, 04Sep 05, 06[H03F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7522190 Image detection processing device for calculating the moments of image dataExpiredJun 04, 04Apr 21, 09[H04N]
7496169 Frequency synthesizer, pulse train generation apparatus and pulse train generation methodExpiredSep 13, 05Feb 24, 09[H03D]
7129776 Bias voltage generator circuitExpiredNov 29, 04Oct 31, 06[G05F]
2005/0283,506 Attenuator, data signal processor, method for acquiring attenuation of attenuator, recording medium, and computer data signalAbandonedJun 15, 05Dec 22, 05[G06F]
6299339 Light generating base for a treeExpiredJun 06, 00Oct 09, 01[F21V, F21W]
6218878 D-type flip-flop circiutExpiredApr 16, 98Apr 17, 01[H03K]
6157268 Voltage controlled emitter coupled multivibrator circuitExpiredJan 19, 99Dec 05, 00[H03K]
5698377 Method of forming a resist patternExpiredJun 11, 96Dec 16, 97[G03F]
5683933 Method of fabricating a semiconductor deviceExpiredJun 17, 96Nov 04, 97[H01L]
5668895 Digital filter for image processingExpiredMar 25, 96Sep 16, 97[G06K]
5577331 Downflow spin dryerExpiredJun 07, 95Nov 26, 96[F26B]
5523712 Resistor array circuit device and variable gain device utilizing sameExpiredMar 06, 95Jun 04, 96[H03G]
5502431 Integrated circuit deviceExpiredFeb 07, 94Mar 26, 96[H01C]
5442210 Semiconductor deviceExpiredOct 28, 93Aug 15, 95[H01L]
5384274 Method of making a combined semiconductor device and inductorExpiredMay 12, 94Jan 24, 95[H01L]
5187453 Oscillation control circuitExpiredFeb 26, 92Feb 16, 93[H03K, H03B]
5177592 Semiconductor deviceExpiredMar 19, 91Jan 05, 93[H01L]
5083183 Semiconductor device and method for producing the sameExpiredJul 17, 90Jan 21, 92[H01L]
5041897 Semiconductor deviceExpiredOct 17, 90Aug 20, 91[H01L]
5021850 Silicon thin film transistorExpiredJul 10, 89Jun 04, 91[H01L]

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