JAPAN RADIO CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03F AMPLIFIERS 776
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES5104
 
  
 
H01Q AERIALS 5105
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 4358
 
  
 
H01P WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE 456
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
H03D DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER 247
 
  
 
1402 DATA PROCESSING EQUIPMENT AS WELL AS PERIPHERAL APPARATUS AND DEVICES261

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9678042 Surface acoustic wave sensorNov 01, 12Jun 13, 17[G01N]
9645116 Object characteristics measurement apparatusDec 14, 12May 09, 17[G01H, G01N]
D709495 Image display monitorMay 28, 13Jul 22, 14[1402]
D709497 Image display monitorMay 28, 13Jul 22, 14[1402]
8355397 Mobile body-mounted communication apparatus and address management apparatusNov 30, 09Jan 15, 13[H04L, H04J]
8322218 Surface acoustic wave element and equipment for measuring characteristics of liquid materialNov 17, 08Dec 04, 12[H01L, G01N]
8327208 Time-division duplex transmit-receive apparatusNov 05, 08Dec 04, 12[G06F]
7471254 Triplate planar slot antennaOct 21, 05Dec 30, 08[H01Q]
6794585 Printed circuit board having filled throughole with corner rounded portion and manufacturing methodDec 04, 01Sep 21, 04[H05K]
6522301 Above deck unit for automatic identification systemOct 05, 01Feb 18, 03[H01Q]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0168,002 RADAR RECEIVERAbandonedJul 25, 12Jun 19, 14[G01S]
2011/0188,626 Damage Evaluation Apparatus, and Damage Evaluation MethodAbandonedMay 24, 06Aug 04, 11[G01N]
7948321 FET bias circuitExpiredJan 08, 10May 24, 11[H03F]
7733630 Electric double-layer capacitorExpiredMar 24, 06Jun 08, 10[H01G, H05K]
7671684 FET bias circuitExpiredJul 05, 05Mar 02, 10[H03F]
2009/0147,441 Closed-Type CapacitorAbandonedAug 29, 05Jun 11, 09[H01G]
2009/0121,952 Slot AntennaAbandonedMar 06, 07May 14, 09[H01Q]
7417845 Electric double-layer capacitor, electric energy storage device including the same, and production method for electric double-layer capacitorExpiredJan 20, 05Aug 26, 08[H01G]
7161085 Thin flat twisted-pair gap cable and gap navigator unitExpiredJun 30, 05Jan 09, 07[H01B]
2004/0174,869 Switch and its usageAbandonedMar 15, 04Sep 09, 04[H04Q]
6564451 Hole filling method for a printed wiring boardExpiredAug 08, 01May 20, 03[H05K]
6539202 Interference canceling deviceExpiredNov 23, 99Mar 25, 03[H04B]
6489844 Feed-forward amplifier and controller of the sameExpiredDec 13, 00Dec 03, 02[H03F]
6486724 FET bias circuitExpiredJan 31, 01Nov 26, 02[H03K]
6369817 Image synthesis systemExpiredMay 18, 99Apr 09, 02[G06T]
6307542 Magnet-based information input apparatusExpiredDec 14, 99Oct 23, 01[G09G]
6212132 Three-dimensional radar apparatus and method for displaying three-dimensional radar imageExpiredJul 26, 99Apr 03, 01[G01S]
6191789 Ray casting method using hardwareExpiredSep 04, 98Feb 20, 01[G06T]
6101378 Pre-paid cellular telephone systemExpiredAug 15, 96Aug 08, 00[H04M, H04Q]
6028892 Voice band-based data transmission systemExpiredAug 15, 96Feb 22, 00[H04B]

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