Atsugi Motor Parts Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5316113 Hydraulic shock absorberExpiredApr 08, 93May 31, 94[F16F]
5177966 Fluid pump arrangement with flow regulation featureExpiredNov 28, 88Jan 12, 93[F16D]
5174338 Pressure control valve unitExpiredApr 08, 91Dec 29, 92[F15B]
5148895 Rotary actuator for variable damping force shock absorberExpiredMay 14, 91Sep 22, 92[H02K, F16F]
5127312 Power assist device for automotive steering systemExpiredJul 24, 85Jul 07, 92[F15B]
5125804 Variable-delivery vane-type rotary compressorExpiredMay 06, 91Jun 30, 92[F04B]
5114325 Rotary internal gear pump having teeth with asymmetrical trailing edgesExpiredJul 02, 90May 19, 92[F04C]
5087868 Rotary actuatorExpiredAug 07, 90Feb 11, 92[H02P, F16F]
5067393 Piston head block for internal combustion engineExpiredAug 23, 89Nov 26, 91[F01P]
5063894 Pressure-diecast light-alloy piston for internal combustion enginesExpiredNov 05, 90Nov 12, 91[F02F]
5055015 Seal structure for rotary body and vane-type rotary compressor employing the sameExpiredMay 23, 89Oct 08, 91[F04C, F16J]
5049052 Light weight vane-type rotary compressorExpiredApr 13, 89Sep 17, 91[F04C]
5049759 Signal processing system for period-to-voltage conversionExpiredApr 21, 89Sep 17, 91[H03K, G01R]
5044908 Vane-type rotary compressor with side plates having separate boss and flange sectionsExpiredMar 22, 89Sep 03, 91[F16C, F04C]
5042364 Piston structure for internal combustion engineExpiredMay 31, 89Aug 27, 91[F01B]
5035584 Variable-delivery vane-type rotary compressorExpiredOct 28, 87Jul 30, 91[F04B]
5030066 Variable-delivery vane-type rotary compressorExpiredSep 21, 87Jul 09, 91[F04C]
5020975 Variable-delivery vane-type rotary compressorExpiredAug 21, 89Jun 04, 91[F04B]
5014836 Fan drive clutch for internal combustion engineExpiredJun 05, 89May 14, 91[F16D]
5012773 Intake- and/or exhaust-valve timing control system for internal combustion engineExpiredAug 18, 89May 07, 91[F01L]

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