Inventor · disambiguated record
Akihito Ikegawa
Also filed as: IKEGAWA AKIHITO
59 granted patents·3 pending applications·907 citations·filing 1987–2007
99Inventor score
Top patents by PatentIndex Score
62 records- 0197US5245386AContact charging device having a brush restricting memberMINOLTA CAMERA KK·Filed 1992·Granted Sep 14, 1993·77 cites·25 claims
- 0295US5012285ADeveloping apparatus including a partitioning arrangement for partitioning the toner accommodating tankMINOLTA CAMERA KK·Filed 1988·Granted Apr 30, 1991·55 cites·16 claims
- 0392US4786936AElectrostatic latent image developing deviceMINOLTA CAMERA KK·Filed 1987·Granted Nov 22, 1988·40 cites·9 claims
- 0486US4920916AElectrostatic latent image developing deviceMINOLTA CAMERA KK·Filed 1989·Granted May 1, 1990·31 cites·25 claims
- 0585US4987452ADeveloping apparatus provided with a chamber for controlling toner grain diameterMINOLTA CAMERA KK·Filed 1988·Granted Jan 22, 1991·27 cites·23 claims
- 0683US7436379B2Reversible image display mediumMINOLTA CO LTD·Filed 2005·Granted Oct 14, 2008·6 cites·12 claims
- 0783US6862016B2Image displaying method and image forming apparatus utilizing a reversible image display medium having a high resolution image displayMINOLTA CO LTD·Filed 2001·Granted Mar 1, 2005·23 cites·20 claims
- 0882US5338895ADeveloping apparatusMINOLTA CAMERA KK·Filed 1993·Granted Aug 16, 1994·30 cites·12 claims
- 0982US4809034ADeveloping deviceMINOLTA CAMERA KK·Filed 1987·Granted Feb 28, 1989·25 cites·10 claims
- 1081US6686940B2Reversible image display mediumMINOLTA CO LTD·Filed 2001·Granted Feb 3, 2004·22 cites·18 claims
- 1181US5124757AImage forming method and apparatus including treatment and collection of residual developerMINOLTA CAMERA KK·Filed 1991·Granted Jun 23, 1992·26 cites·6 claims
- 1280US5371578AImage forming apparatus including means for removing counter charged toner from the charging meansMINOLTA CAMERA KK·Filed 1993·Granted Dec 6, 1994·25 cites·10 claims
- 1380US5343223AImage forming apparatusMINOLTA CAMERA KK·Filed 1991·Granted Aug 30, 1994·27 cites·19 claims
- 1478US5587551ADeveloping apparatusMINOLTA CAMERA KK·Filed 1995·Granted Dec 24, 1996·30 cites·24 claims
- 1578US4855768ADigital printing apparatusMINOLTA CAMERA KK·Filed 1988·Granted Aug 8, 1989·23 cites·21 claims
- 1677US5652649ACharging device and image forming apparatusMINOLTA CO LTD·Filed 1995·Granted Jul 29, 1997·27 cites·17 claims
- 1777US4851872ADeveloping device with developer sleeve facilitating developer supply adjustment by bristle height regulating memberMINOLTA CAMERA KK·Filed 1987·Granted Jul 25, 1989·21 cites·8 claims
- 1874US5568231ACharging device for charging the surface of a photosensitive member in an electrophotographic image forming deviceMINOLTA CAMERA KK·Filed 1993·Granted Oct 22, 1996·19 cites·19 claims
- 1973US5225878AImage forming apparatusMINOLTA CAMERA KK·Filed 1992·Granted Jul 6, 1993·19 cites·7 claims
- 2072US5289234AImage forming apparatus with charge brushMINOLTA CAMERA KK·Filed 1993·Granted Feb 22, 1994·18 cites·22 claims
- 2172US5241342AImage forming apparatus having a charging member and means for protecting the image bearing surface charged by the charging memberMINOLTA CAMERA KK·Filed 1992·Granted Aug 31, 1993·19 cites·10 claims
- 2271US5305061AImage forming apparatus having a contact charging device that exhibits uniform charging through reduced residual toner adhesionMINOLTA CAMERA KK·Filed 1991·Granted Apr 19, 1994·20 cites·24 claims
- 2369US6900789B2Reversible image display mediumMINOLTA CO LTD·Filed 2001·Granted May 31, 2005·9 cites·15 claims
- 2467US4947212ADeveloping apparatus with color dependent toner supply voltageMINOLTA CAMERA KK·Filed 1988·Granted Aug 7, 1990·14 cites·8 claims
- 2566US6115573AImage forming apparatus and method using a developing device relating to ink viscosity and/or temperatureMINOLTA CO LTD·Filed 1998·Granted Sep 5, 2000·17 cites·19 claims
- 2666US5192974AContract chargerMINOLTA CAMERA KK·Filed 1992·Granted Mar 9, 1993·15 cites·13 claims
- 2765US5243387ACharging device with a loosely mounted flexible memberMINOLTA CAMERA KK·Filed 1991·Granted Sep 7, 1993·14 cites·12 claims
- 2864US6922204B2Image display medium and image recording apparatusMINOLTA CO LTD·Filed 2003·Granted Jul 26, 2005·8 cites·14 claims
- 2962US6881307B2Image creating apparatus and image recording apparatusMINOLTA CO LTD·Filed 2002·Granted Apr 19, 2005·2 cites·21 claims
- 3062US5552865ACharging device and method for charging a charge-receiving member by a charging member by discharge therebetween based on difference in electric potential between the charging member and the charge-receiving memberMINOLTA CAMERA KK·Filed 1994·Granted Sep 3, 1996·13 cites·40 claims
- 3162US5278614AContact charger and image forming apparatus incorporating the contact chargerMINOLTA CAMERA KK·Filed 1993·Granted Jan 11, 1994·13 cites·17 claims
- 3262US5130755ACleaning deviceMINOLTA CAMERA KK·Filed 1990·Granted Jul 14, 1992·15 cites·11 claims
- 3360US5402213ACharging device for charging outer surface of photosensitive member including charging member formed by a layer comprising a copolymer of an olefin-type vinyl monomer and a fluorine-contained monomerMINOLTA CAMERA KK·Filed 1993·Granted Mar 28, 1995·12 cites·12 claims
- 3457US6768889B2Method and apparatus for forming an image on display mediumMINOLTA CO LTD·Filed 2003·Granted Jul 27, 2004·6 cites·15 claims
- 3557US5328790APhotoreceptor for use in contact charging method and image forming apparatus employing said photoreceptorMINOLTA CAMERA KK·Filed 1992·Granted Jul 12, 1994·10 cites·7 claims
- 3655US5557375AContact type charging device and image forming apparatus having the sameMINOLTA CO LTD·Filed 1995·Granted Sep 17, 1996·12 cites·19 claims
- 3755US4924806ADeveloping apparatusMINOLTA CAMERA KK·Filed 1988·Granted May 15, 1990·10 cites·4 claims
- 3854US7604706B2Method for producing resin-molded substrate and method for producing reversible image display mediumMINOLTA CO LTD·Filed 2002·Granted Oct 20, 2009·6 cites·5 claims
- 3954US5737670AForming method and apparatusMINOLTA CO LTD·Filed 1995·Granted Apr 7, 1998·11 cites·48 claims
- 4050US5930565AImage forming apparatusMINOLTA CO LTD·Filed 1998·Granted Jul 27, 1999·9 cites·22 claims
- 4150US5881343ACharging method and charging deviceMINOLTA CO LTD·Filed 1997·Granted Mar 9, 1999·15 cites·29 claims
- 4249US4819027ADeveloping apparatusMINOLTA CAMERA KK·Filed 1987·Granted Apr 4, 1989·12 cites·8 claims
- 4348US5376425AContact member for controlling an electrostatic state of a chargeable memberMINOLTA CAMERA KK·Filed 1992·Granted Dec 27, 1994·11 cites·10 claims
- 4448US5128722ADeveloping device excellent in toner transportabilityMINOLTA CAMERA KK·Filed 1991·Granted Jul 7, 1992·7 cites·21 claims
- 4546US5870129AImage forming method and apparatus transferring an ink imageMINOLTA CO LTD·Filed 1996·Granted Feb 9, 1999·7 cites·24 claims
- 4645US2005179643A1Image displaying method and image forming apparatus utilizing a reversible image display medium having a high resolution image displayMINOLTA CO LTD·Filed 2005·Application pending·0 cites
- 4744US2008018021A1Method for producing resin-molded substrate and method for producing reversible image display mediumMINOLTA CO LTD·Filed 2007·Application pending·0 cites
- 4842US5140373AElectrostatic latent image developing apparatus with bristle height adjusting memberMINOLTA CAMERA KK·Filed 1989·Granted Aug 18, 1992·5 cites·11 claims
- 4941US5376995AContact charger having a curved surfaceMINOLTA CAMERA KK·Filed 1993·Granted Dec 27, 1994·5 cites·18 claims
- 5040US5576808AImage forming apparatus having contact chargerMINOLTA CO LTD·Filed 1995·Granted Nov 19, 1996·5 cites·3 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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