Inventor · disambiguated record
Hisashi Shoji
Also filed as: SHOJI HISASHI
73 granted patents·1 pending application·2,209 citations·filing 1984–2008
99Inventor score
Top patents by PatentIndex Score
74 records- 0198US6505014B2Image forming apparatus and an image forming process unitRICOH KK·Filed 2001·Granted Jan 7, 2003·116 cites·38 claims
- 0298US4894685AMulticolor image forming method and apparatusKONISHIROKU PHOTO IND·Filed 1987·Granted Jan 16, 1990·71 cites·16 claims
- 0397US6721516B2Image forming apparatusRICOH KK·Filed 2002·Granted Apr 13, 2004·85 cites·79 claims
- 0497US6125243AToner replenishing and developer replacing device for a developing unit of an image forming apparatusRICOH KK·Filed 1998·Granted Sep 26, 2000·106 cites·4 claims
- 0597US5915155AToner replenishing and developer replacing device for a developing unit of an image forming apparatusRICOH KK·Filed 1996·Granted Jun 22, 1999·110 cites·16 claims
- 0696US7457550B2Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining methodRICOH KK·Filed 2006·Granted Nov 25, 2008·32 cites·9 claims
- 0796US6757509B2Image forming apparatusRICOH KK·Filed 2001·Granted Jun 29, 2004·56 cites·10 claims
- 0896US5740494AConfigured to enhance toner collecting efficiency and toner redepositing efficiencyRICOH KK·Filed 1996·Granted Apr 14, 1998·91 cites·40 claims
- 0996US4994853AApparatus for recording color images having interchangeable process cartridges and cartridge information on IC cardsKONISHIROKU PHOTO IND·Filed 1989·Granted Feb 19, 1991·53 cites·10 claims
- 1095US7313336B2Method and apparatus for image forming capable of effectively recycling tonerRICOH KK·Filed 2005·Granted Dec 25, 2007·25 cites·33 claims
- 1195US4599285AMultiplex image reproducing methodKONISHIROKU PHOTO IND·Filed 1984·Granted Jul 8, 1986·38 cites·26 claims
- 1294US7327962B2Abnormality determining method, abnormality determining apparatus, and image forming apparatusRICOH KK·Filed 2007·Granted Feb 5, 2008·35 cites·12 claims
- 1394US6597885B2Image forming apparatus having a developing device with a magnet brushRICOH KK·Filed 2001·Granted Jul 22, 2003·45 cites·68 claims
- 1494US5606408AImage forming apparatus and cleaning device thereforRICOH KK·Filed 1995·Granted Feb 25, 1997·73 cites·35 claims
- 1594US4996566AMulticolor image forming apparatus with separately removable and insertable assembly unitsKONISHIROKU PHOTO IND·Filed 1989·Granted Feb 26, 1991·44 cites·15 claims
- 1693US5937228AImage forming apparatusRICOH KK·Filed 1998·Granted Aug 10, 1999·60 cites·27 claims
- 1792US6778805B2Image forming apparatus having a developing device with a magnet brushRICOH KK·Filed 2003·Granted Aug 17, 2004·34 cites·95 claims
- 1891US7778555B2Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining methodRICOH KK·Filed 2008·Granted Aug 17, 2010·14 cites·22 claims
- 1990US7203431B2Abnormality determining method, abnormality determining apparatus, and image forming apparatusRICOH KK·Filed 2004·Granted Apr 10, 2007·54 cites·7 claims
- 2090US7110917B2Abnormality determining method, and abnormality determining apparatus and image forming apparatus using sameRICOH KK·Filed 2004·Granted Sep 19, 2006·57 cites·48 claims
- 2190US5619316AImage forming apparatusRICOH KK·Filed 1996·Granted Apr 8, 1997·53 cites·5 claims
- 2290US4959669AColor correction device for a color image forming apparatusKONISHIROKU PHOTO IND·Filed 1988·Granted Sep 25, 1990·67 cites·4 claims
- 2389US7903269B2Abnormality determining apparatus, image forming apparatus including the abnormality determining apparatus, and abnormality determining methodRICOH CO LTD·Filed 2005·Granted Mar 8, 2011·11 cites·28 claims
- 2488US5036367AColor image forming apparatusKONISHIROKU PHOTO IND·Filed 1989·Granted Jul 30, 1991·32 cites·12 claims
- 2588US4679929AMultiplex image reproducing apparatusKONISHIROKU PHOTO IND·Filed 1986·Granted Jul 14, 1987·25 cites·35 claims
- 2687US6901233B2Image forming apparatusRICOH KK·Filed 2003·Granted May 31, 2005·23 cites·13 claims
- 2787US6819901B1Developing method and a developing device for image forming apparatusRICOH KK·Filed 2000·Granted Nov 16, 2004·27 cites·29 claims
- 2887US5146270AColor image forming apparatus having interchangeable image forming process cartridgesKONISHIROKU PHOTO IND·Filed 1991·Granted Sep 8, 1992·36 cites·9 claims
- 2987US5107304ARemovable cartridge for a color image forming apparatusKONISHIROKU PHOTO IND·Filed 1990·Granted Apr 21, 1992·38 cites·8 claims
- 3085US6978109B2Image forming apparatusRICOH KK·Filed 2004·Granted Dec 20, 2005·20 cites·24 claims
- 3184US6456806B2Developing method, device, and image forming apparatus with magnet brushRICOH KK·Filed 2001·Granted Sep 24, 2002·22 cites·22 claims
- 3284US5970280AImage forming apparatus having a developing bias control unitRICOH KK·Filed 1998·Granted Oct 19, 1999·35 cites·10 claims
- 3383US7079798B2Toner transfer back suppressing color image forming apparatusRICOH KK·Filed 2005·Granted Jul 18, 2006·7 cites·18 claims
- 3483US4839692AApparatus for reproducing multi-color imageKONISHIROKU PHOTO IND·Filed 1987·Granted Jun 13, 1989·22 cites·8 claims
- 3583US4797335ADeveloping method for electrostatic images using composite component developer under non-contacting conditionsKONISHIROKU PHOTO IND·Filed 1987·Granted Jan 10, 1989·25 cites·12 claims
- 3682US6823163B2Image forming apparatus including an electric field having an oscillation component between an image carrier and a developer carrierRICOH KK·Filed 2001·Granted Nov 23, 2004·20 cites·8 claims
- 3781US7554574B2Abnormal state occurrence predicting method, state deciding apparatus, and image forming systemRICOH KK·Filed 2004·Granted Jun 30, 2009·29 cites·25 claims
- 3881US4841332AToner control for a developer deviceKONISHIROKU PHOTO IND·Filed 1986·Granted Jun 20, 1989·23 cites·26 claims
- 3980US4680625AMethod and apparatus for multicolor image formingKONISHIROKU PHOTO IND·Filed 1985·Granted Jul 14, 1987·36 cites·13 claims
- 4079US5124747AColor copy machine with detachable process cartridgeKONISHIROKU PHOTO IND·Filed 1991·Granted Jun 23, 1992·25 cites·4 claims
- 4176US4814797AApparatus and method for controlling color dot size in multicolor imageKONISHIROKU PHOTO IND·Filed 1986·Granted Mar 21, 1989·29 cites·15 claims
- 4274US5047801AColor image forming apparatus having the developing means and cleaning means formed as a detachable unitKONISHIROKU PHOTO IND·Filed 1989·Granted Sep 10, 1991·18 cites·7 claims
- 4372US5103303AMulticolor imaging forming apparatusKONISHIROKU PHOTO IND·Filed 1991·Granted Apr 7, 1992·48 cites·8 claims
- 4471US6160979AImage forming apparatusRICOH KK·Filed 1999·Granted Dec 12, 2000·20 cites·30 claims
- 4571US4998145AImage forming apparatus having a first mode for forming a multicolor image of restricted length and a second mode for forming a monocolor image of unrestricted lengthKONISHIROKU PHOTO IND·Filed 1989·Granted Mar 5, 1991·16 cites·17 claims
- 4670US6782225B2Image forming apparatus having plurality of developing sections with particular magnetic flux densityRICOH KK·Filed 2003·Granted Aug 24, 2004·9 cites·26 claims
- 4770US4669864AImage forming apparatusKONISHIROKU PHOTO IND·Filed 1986·Granted Jun 2, 1987·16 cites·21 claims
- 4869US4803514AMulti-color image forming method and apparatusKONISHIROKU PHOTO IND·Filed 1985·Granted Feb 7, 1989·15 cites·8 claims
- 4969US4666804AMethod of and apparatus for image formingKONISHIROKU PHOTO IND·Filed 1985·Granted May 19, 1987·13 cites·8 claims
- 5068US4756985AMethod of forming multicolor imagesKONISHIROKU PHOTO IND·Filed 1987·Granted Jul 12, 1988·14 cites·28 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
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