TOYO DENKI SEIZO KABUSHIKI KAISHA

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5352910 Semiconductor device with a buffer structureExpiredApr 02, 93Oct 04, 94[H01L]
4367521 PWM Inverter deviceExpiredJul 10, 80Jan 04, 83[H02P]
4366533 PWM Inverter deviceExpiredJul 10, 80Dec 28, 82[H02P]

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