Mamiya Koki Kabushiki Kaisha

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4908640 Apparatus for taking photograph with monitoring systemExpiredDec 12, 88Mar 13, 90[G03B]
4851867 Photographing number change-over device for two lens cameraExpiredJul 08, 88Jul 25, 89[G03B]
4839680 Method and device for driving lens shutterExpiredDec 15, 87Jun 13, 89[G03B]
4751537 Photographing number change-over device for four lens cameraExpiredAug 03, 87Jun 14, 88[G03B]
4484080 Shape detecting deviceExpiredJul 27, 82Nov 20, 84[G01N]
4459743 Automatic mounting apparatus for chip componentsExpiredDec 03, 81Jul 17, 84[H05K]
4460261 Automatic focusing deviceExpiredFeb 14, 83Jul 17, 84[G03B]
4423935 Automatic focusing deviceExpiredJan 24, 83Jan 03, 84[G03B]
4382665 Automatic focusing deviceExpiredMay 27, 81May 10, 83[H04N, G01J, G03B]
4381523 Automatic focusing deviceExpiredJan 12, 81Apr 26, 83[H04N]
D263476 Still cameraExpiredJun 18, 79Mar 23, 82[D160]
4313647 Nonreflective coatingExpiredJan 02, 80Feb 02, 82[G02B]
4303320 Automatic focus adjusting deviceExpiredJul 12, 79Dec 01, 81[G01J, G03B]
4273424 Variable aberration lens systemExpiredMay 29, 79Jun 16, 81[G02B]
4253754 Mirror-shutter device in single-lens reflex cameraExpiredNov 06, 79Mar 03, 81[G03B]
4251149 Viewfinder mask orienting device in a cameraExpiredOct 02, 79Feb 17, 81[G03B]

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