501 Sharp Kabushiki Kaisha

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4859060 Variable interferometric device and a process for the production of the sameExpiredNov 25, 86Aug 22, 89[G01B]
4857907 Liquid-crystal display deviceExpiredApr 28, 87Aug 15, 89[G09G]
4853936 Index guided semiconductor laser deviceExpiredApr 13, 88Aug 01, 89[H01S]
4852111 Semiconductor laser deviceExpiredDec 15, 87Jul 25, 89[H01S]
4845724 Semiconductor laser device having optical guilding layers of unequal resistanceExpiredDec 22, 87Jul 04, 89[H01S]
4823353 Semiconductor laser array apparatusExpiredOct 08, 87Apr 18, 89[H01S]
4817109 External resonator type semiconductor laser apparatusExpiredDec 04, 86Mar 28, 89[H01S]
4813051 Semiconductor laser array deviceExpiredJan 20, 87Mar 14, 89[H01S]
4807235 Semiconductor laser deviceExpiredSep 09, 86Feb 21, 89[H01S]
4412305 Sentence translation deviceExpiredNov 07, 80Oct 25, 83[G06F]

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