Assignee
MITA INDUSTRIAL CO LTD
JP·1,350 granted patents·18,917 citations·filing 1970–2000
Top patents by PatentIndex Score
1,350 records- 0198US5210574APhotosensitive drum body-mounting mechanism including a drive coupling member with a coupling protrusion adapted to bite into the inner surface of the mechanism's photosensitive drumMITA INDUSTRIAL CO LTD·Filed 1992·Granted May 11, 1993·113 cites·6 claims
- 0298US4566908AAzoic pigments having a silica coreMITA INDUSTRIAL CO LTD·Filed 1984·Granted Jan 28, 1986·73 cites·10 claims
- 0397US6145828ASheet conveyor single-handed parting engagement mechanismMITA INDUSTRIAL CO LTD·Filed 1998·Granted Nov 14, 2000·123 cites·11 claims
- 0497US5184181ACartridge discriminating systemMITA INDUSTRIAL CO LTD·Filed 1990·Granted Feb 2, 1993·154 cites·1 claims
- 0597US5028966AImage-forming machineMITA INDUSTRIAL CO LTD·Filed 1989·Granted Jul 2, 1991·75 cites·24 claims
- 0697US4607734APower transmitting device in a copying machineMITA INDUSTRIAL CO LTD·Filed 1984·Granted Aug 26, 1986·103 cites·3 claims
- 0796US5752128AImage forming apparatus with contract renewal deviceMITA INDUSTRIAL CO LTD·Filed 1996·Granted May 12, 1998·89 cites·4 claims
- 0896US4974020ARemovable developing units for a copying machine and display for indicating the useful life of the machineMITA INDUSTRIAL CO LTD·Filed 1987·Granted Nov 27, 1990·78 cites·48 claims
- 0996US4963939ACartridge discriminating systemMITA INDUSTRIAL CO LTD·Filed 1987·Granted Oct 16, 1990·88 cites·11 claims
- 1096US4650347ATemperature detectorMITA INDUSTRIAL CO LTD·Filed 1985·Granted Mar 17, 1987·53 cites·8 claims
- 1195US5656407APhotosensitive material for electrophotographyMITA INDUSTRIAL CO LTD·Filed 1994·Granted Aug 12, 1997·67 cites·4 claims
- 1295US5611528AImage-forming machine equipped with a cassette for feeding sheet materialsMITA INDUSTRIAL CO LTD·Filed 1995·Granted Mar 18, 1997·68 cites·5 claims
- 1395US5312713AInformation recording medium and information recording methodMITA INDUSTRIAL CO LTD·Filed 1993·Granted May 17, 1994·72 cites·16 claims
- 1495US5294963AToner cartridge having opening for discharging toner sealed with sealing member and method of stripping sealing memberMITA INDUSTRIAL CO LTD·Filed 1992·Granted Mar 15, 1994·56 cites·40 claims
- 1595US5241353APaper-discharging trayMITA INDUSTRIAL CO LTD·Filed 1991·Granted Aug 31, 1993·85 cites·20 claims
- 1695US5052670AImage-forming machineMITA INDUSTRIAL CO LTD·Filed 1989·Granted Oct 1, 1991·46 cites·23 claims
- 1795US4873549ADevice for detecting the life of an image forming process unit, opening of a seal of the unit and attachment of the unit to an image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1988·Granted Oct 10, 1989·99 cites·21 claims
- 1895US4548394ACopying paper conveying device in electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1983·Granted Oct 22, 1985·50 cites·6 claims
- 1994US5873009AEquipment management system that issues a warning when the lifetime of a component has been exceeded and disables the warning when such a warning is to be generated for a different componentMITA INDUSTRIAL CO LTD·Filed 1996·Granted Feb 16, 1999·80 cites·15 claims
- 2094US5402216AMechanism for opening/closing a toner falling apertureMITA INDUSTRIAL CO LTD·Filed 1993·Granted Mar 28, 1995·66 cites·14 claims
- 2194US5091750ACartridge unitMITA INDUSTRIAL CO LTD·Filed 1990·Granted Feb 25, 1992·67 cites·29 claims
- 2294US4768055AImage forming machine having a toner recycling unitMITA INDUSTRIAL CO LTD·Filed 1987·Granted Aug 30, 1988·55 cites·32 claims
- 2394US4108786AMagnetic dry developer for electrostatic photography and process for preparation thereofMITA INDUSTRIAL CO LTD·Filed 1975·Granted Aug 22, 1978·43 cites·12 claims
- 2493US5329307AImage forming apparatus and method of controlling image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1993·Granted Jul 12, 1994·59 cites·9 claims
- 2593US4894688ADevice for circulating developerMITA INDUSTRIAL CO LTD·Filed 1988·Granted Jan 16, 1990·47 cites·32 claims
- 2693US4563074AEngagement mechanism for a developing means in electrostatic copying machineMITA INDUSTRIAL CO LTD·Filed 1984·Granted Jan 7, 1986·41 cites·13 claims
- 2792US5993101AShaft coupling and shaft coupling structure for use in image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1998·Granted Nov 30, 1999·104 cites·12 claims
- 2892USD399524SPrinterMITA INDUSTRIAL CO LTD·Filed 1996·Granted Oct 13, 1998·45 cites·1 claims
- 2992US5708909AEquipment management systemMITA INDUSTRIAL CO LTD·Filed 1996·Granted Jan 13, 1998·70 cites·5 claims
- 3092US5305994ASorter with rotary spirals and guide railsMITA INDUSTRIAL CO LTD·Filed 1992·Granted Apr 26, 1994·59 cites·10 claims
- 3192US5118093AImage-forming machineMITA INDUSTRIAL CO LTD·Filed 1991·Granted Jun 2, 1992·42 cites·6 claims
- 3292US4751484ADrum unit exchange time indicating device for image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1987·Granted Jun 14, 1988·46 cites·7 claims
- 3392US4254202AElectrostatic copying processMITA INDUSTRIAL CO LTD·Filed 1978·Granted Mar 3, 1981·28 cites·8 claims
- 3492US4081571AMethod for developing electrostatic latent imagesMITA INDUSTRIAL CO LTD·Filed 1975·Granted Mar 28, 1978·41 cites·21 claims
- 3591US5848338AToner replenishing device and toner cartridge for use thereinMITA INDUSTRIAL CO LTD·Filed 1997·Granted Dec 8, 1998·59 cites·36 claims
- 3691US5802426AUnit positioning member for an image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1997·Granted Sep 1, 1998·61 cites·10 claims
- 3791US5467355AImage forming apparatus provided with self-diagnosis systemMITA INDUSTRIAL CO LTD·Filed 1994·Granted Nov 14, 1995·105 cites·9 claims
- 3891US5436699APhotosensitive drum earthing mechanismMITA INDUSTRIAL CO LTD·Filed 1994·Granted Jul 25, 1995·50 cites·14 claims
- 3991US5430780AReset mechanism of counter for counting number of times of image formationMITA INDUSTRIAL CO LTD·Filed 1993·Granted Jul 4, 1995·45 cites·12 claims
- 4091US5351945AOverlapped transfer-preventing mechanismMITA INDUSTRIAL CO LTD·Filed 1993·Granted Oct 4, 1994·40 cites·5 claims
- 4191US5347350ASheet feederMITA INDUSTRIAL CO LTD·Filed 1993·Granted Sep 13, 1994·45 cites·18 claims
- 4291US5170185AImage forming apparatusMITA INDUSTRIAL CO LTD·Filed 1991·Granted Dec 8, 1992·56 cites·38 claims
- 4391US5142335AElectrostatic latent image-developing device and toner cartridge used thereforMITA INDUSTRIAL CO LTD·Filed 1991·Granted Aug 25, 1992·43 cites·24 claims
- 4491US5139252APaper-supplying device in an image-forming apparatusMITA INDUSTRIAL CO LTD·Filed 1990·Granted Aug 18, 1992·46 cites·16 claims
- 4591US4882606ADevice for guiding paper toward transfer regionMITA INDUSTRIAL CO LTD·Filed 1988·Granted Nov 21, 1989·38 cites·9 claims
- 4691US4825988AElectromagnetically controlled spring clutch mechanismMITA INDUSTRIAL CO LTD·Filed 1987·Granted May 2, 1989·36 cites·15 claims
- 4791US4607936AElectrophotographic apparatus comprising photosensitive layer of amorphous silicon type photoconductorMITA INDUSTRIAL CO LTD·Filed 1984·Granted Aug 26, 1986·40 cites·16 claims
- 4891US4589650APaper feeding deviceMITA INDUSTRIAL CO LTD·Filed 1984·Granted May 20, 1986·38 cites·5 claims
- 4991US4388392ALaminated photosensitive plate for electrophotography having an electron donative polymer and phenanthrene charge transport layerMITA INDUSTRIAL CO LTD·Filed 1981·Granted Jun 14, 1983·37 cites·12 claims
- 5090US5933691AToner supply cartridge having a shutter equipped to cooperate with a stopper element and a returner element of a guide to close the shutter automatically, and toner supplying apparatus with such cartridgeMITA INDUSTRIAL CO LTD·Filed 1997·Granted Aug 3, 1999·60 cites·8 claims
Showing the top 50 of 1,350 patent records by PatentIndex Score.
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