Matsushita Seiko Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A01N PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF 194
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR 196

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8159654 Pressure body and pellicle mounting apparatusJun 03, 09Apr 17, 12[G03B]
5888527 Gargling cup, antiviral mask, antiviral filter, antifungal, antibacterial, and antiviral filter air cleaner and air-cleaner humidifierApr 25, 97Mar 30, 99[A01N]
D387859 Ventilating fanNov 26, 96Dec 16, 97[2304]
5564186 Method of making a scroll compressor having a centering recess for assemblyJun 06, 95Oct 15, 96[B23P]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5973776 Surface inspection apparatusExpiredApr 13, 98Oct 26, 99[G01N]
5591334 Apparatus for generating negative ionsExpiredOct 04, 94Jan 07, 97[H05F, B01D]
5492676 Denitrification systemExpiredMay 27, 94Feb 20, 96[B01D]
D352552 Combined ceiling fan and lightExpiredAug 26, 93Nov 15, 94[]
5294048 Apparatus for controlling ventilation fanExpiredOct 14, 92Mar 15, 94[B60H]
5267450 Air conditioning apparatusExpiredJul 20, 92Dec 07, 93[F24F]
D334055 Combined ceiling fan and lightExpiredFeb 14, 92Mar 16, 93[]
5187858 Method of producing a stator for a rotary machineExpiredOct 08, 91Feb 23, 93[H02K]
4792649 Multiple push-button switch arrangementExpiredNov 24, 87Dec 20, 88[H01H]
4691269 PWM inverter apparatusExpiredJun 26, 85Sep 01, 87[H02M]
4641053 Ultrasonic liquid atomizer with an improved soft start circuitExpiredAug 14, 84Feb 03, 87[H01L]
4603460 Method for manufacturing a heat exchangerExpiredSep 26, 84Aug 05, 86[B23P, B31D, B21D, B32B]
4592413 Through-wall type air conditionerExpiredDec 13, 82Jun 03, 86[F24F]
4583056 Apparatus having printed circuit pattern for suppressing radio interferenceExpiredSep 13, 84Apr 15, 86[H03B, H05K]
4574872 Heat exchanger apparatusExpiredJul 03, 84Mar 11, 86[F28D]
4559766 Device for automatic tying of packagesExpiredJan 27, 82Dec 24, 85[B65B]
4529638 Thermal insulatorExpiredDec 03, 81Jul 16, 85[B32B]
4456437 Refrigerant compressorExpiredDec 21, 81Jun 26, 84[F01M, F04B, F04C, F04D]
4449895 Refrigerant compressorExpiredDec 21, 81May 22, 84[F16N, F04B, F04D]
4430776 Combination vibration damper and fastener for union of two panelsExpiredAug 26, 81Feb 14, 84[H01B, F16F, A44B]

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