Inventor · disambiguated record
Kunihiro Ohyama
Also filed as: OHYAMA KUNIHIRO
55 granted patents·512 citations·filing 1994–2023
98Inventor score
Top patents by PatentIndex Score
55 records- 0198USD758482SToner bottleTAKAHASHI YASUFUMI·Filed 2014·Granted Jun 7, 2016·12 cites·1 claims
- 0298USD757161SToner containerTAKAHASHI YASUFUMI·Filed 2014·Granted May 24, 2016·12 cites·1 claims
- 0398US8346105B2Information storage device, removable device, developer container, and image forming apparatusRICOH CO LTD·Filed 2012·Granted Jan 1, 2013·15 cites·20 claims
- 0497USD743400SInformation storage deviceTAKAHASHI MASAKI·Filed 2014·Granted Nov 17, 2015·10 cites·1 claims
- 0597US9081327B2Apparatus and method for preventing an information storage device from falling from a removable deviceTAKAHASHI YASUFUMI·Filed 2014·Granted Jul 14, 2015·9 cites·29 claims
- 0695US9057983B2Developer container, developer replenishing device, developing device, and image forming apparatus using sameTAKAHASHI MASAKI·Filed 2013·Granted Jun 16, 2015·8 cites·10 claims
- 0795US7302205B2Process cartridge and image forming apparatusRICOH KK·Filed 2005·Granted Nov 27, 2007·20 cites·63 claims
- 0894US9069287B2Apparatus and method for preventing an information storage device from falling from a removable deviceTAKAHASHI YASUFUMI·Filed 2014·Granted Jun 30, 2015·4 cites·30 claims
- 0994US8909071B2Apparatus and method for preventing an information storage device from falling from a removable deviceTAKAHASHI YASUFUMI·Filed 2013·Granted Dec 9, 2014·4 cites·25 claims
- 1093US8027596B2Image forming apparatusRICOH CO LTD·Filed 2010·Granted Sep 27, 2011·6 cites·11 claims
- 1192US11366410B2Developer container, developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2021·Granted Jun 21, 2022·2 cites·16 claims
- 1292US8290378B2Image forming apparatus having a magnetic field generating unit at the toner carrying sectionOHYAMA KUNIHIRO·Filed 2011·Granted Oct 16, 2012·8 cites·11 claims
- 1390US6873814B2Developing device using a two-ingredient type developer and image forming apparatus including the sameRICOH KK·Filed 2002·Granted Mar 29, 2005·36 cites·18 claims
- 1489US12416878B2Information storage system including a plurality of terminalsRICOH CO LTD·Filed 2023·Granted Sep 16, 2025·0 cites·15 claims
- 1588US8843034B2Toner container, toner container frame, and image forming apparatus incorporating sameYAMANE MASAYUKI·Filed 2012·Granted Sep 23, 2014·5 cites·15 claims
- 1686US7515856B2Image forming apparatus, a process cartridge provided in the apparatus, and a developing device included in the process cartridge of the apparatusRICOH KK·Filed 2006·Granted Apr 7, 2009·8 cites·18 claims
- 1786US6856774B2Developing device including magnetic member provided on toner-scattering restraining device and image forming apparatus including the developing deviceRICOH KK·Filed 2002·Granted Feb 15, 2005·26 cites·15 claims
- 1884US11768448B2Information storage system including a plurality of terminalsRICOH CO LTD·Filed 2022·Granted Sep 26, 2023·0 cites·31 claims
- 1984US8660441B2Information storage device, removable device, developer container, and image forming apparatusTAKAHASHI YASUFUMI·Filed 2012·Granted Feb 25, 2014·1 cites·17 claims
- 2083US10725398B2Developer container having a cap with three portions of different diametersRICOH CO LTD·Filed 2019·Granted Jul 28, 2020·0 cites·20 claims
- 2181US11429036B2Information storage system including a plurality of terminalsRICOH CO LTD·Filed 2020·Granted Aug 30, 2022·0 cites·43 claims
- 2281US11275327B2Information storage system including a plurality of terminalsRICOH CO LTD·Filed 2021·Granted Mar 15, 2022·0 cites·21 claims
- 2381US8909095B2Process cartridge for image forming apparatus including a hollow alignment shaftYAMANE MASAYUKI·Filed 2012·Granted Dec 9, 2014·3 cites·19 claims
- 2481US8238796B2Toner supplying device and image forming apparatusYOSHIDA SATORU·Filed 2009·Granted Aug 7, 2012·6 cites·18 claims
- 2580USD678227STag for removable partTAKAHASHI MASAKI·Filed 2011·Granted Mar 19, 2013·25 cites·1 claims
- 2679US5690610AAdhesive material for hemostasis and a method for hemostasisNICHIBAN KK·Filed 1994·Granted Nov 25, 1997·196 cites·24 claims
- 2778US10754275B2Apparatus and method for preventing an information storage device from falling from a removable deviceRICOH CO LTD·Filed 2018·Granted Aug 25, 2020·0 cites·20 claims
- 2878US6208826B1Transfer device having notches, method and image forming apparatus using the same transfer device or methodRICOH KK·Filed 1999·Granted Mar 27, 2001·27 cites·60 claims
- 2977US11188007B2Developer container which discharges toner from a lower side and includes a box sectionRICOH CO LTD·Filed 2020·Granted Nov 30, 2021·0 cites·20 claims
- 3076US8488992B2Development device, process cartridge, and image forming apparatusKADOTA ICHIRO·Filed 2010·Granted Jul 16, 2013·2 cites·18 claims
- 3175US9989887B2Apparatus and method for preventing an information storage device from falling from a removable deviceTAKAHASHI YASUFUMI·Filed 2017·Granted Jun 5, 2018·0 cites·16 claims
- 3275US9256158B2Apparatus and method for preventing an information storage device from falling from a removable deviceRICOH CO LTD·Filed 2014·Granted Feb 9, 2016·0 cites·33 claims
- 3373US11726418B2Developer container, developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2022·Granted Aug 15, 2023·0 cites·17 claims
- 3473US9110402B2Apparatus and method for preventing an information storage device from falling from a removable deviceTAKAHASHI YASUFUMI·Filed 2013·Granted Aug 18, 2015·0 cites·43 claims
- 3573US8953987B2Development device, and process cartridge and image forming apparatus including sameKIMURA HIDEKI·Filed 2014·Granted Feb 10, 2015·1 cites·9 claims
- 3673USD622759SToner cartridgeRICOH KK·Filed 2009·Granted Aug 31, 2010·18 cites·1 claims
- 3771US9599927B2Apparatus and method for preventing an information storage device from falling from a removable deviceTAKAHASHI YASUFUMI·Filed 2015·Granted Mar 21, 2017·0 cites·36 claims
- 3871US8369738B2Toner container and image forming apparatusRICOH CO LTD·Filed 2009·Granted Feb 5, 2013·2 cites·15 claims
- 3970US8855536B2Development device, and process cartridge and image forming apparatus including same in which an angle formed using an end face of a buffer area is smaller than an angle of twist of a spiral bladeKIMURA HIDEKI·Filed 2012·Granted Oct 7, 2014·1 cites·7 claims
- 4070US7796922B2Image forming apparatus having a magnetic field generating unit at the toner carrying sectionRICOH KK·Filed 2008·Granted Sep 14, 2010·2 cites·20 claims
- 4167US8873979B2Development device, process cartridge, and image forming apparatus incorporating sameFUJIWARA YOSHIHIRO·Filed 2012·Granted Oct 28, 2014·1 cites·14 claims
- 4266US8655198B2Image forming apparatus and toner cartridges with differently sized guided portionsYAMANE MASAYUKI·Filed 2011·Granted Feb 18, 2014·1 cites·7 claims
- 4365US6810222B2Image forming apparatus including an image carrier, a latent image forming means, and a developing device capable of preventing developer from escaping the developing device, and process cartridge thereforeRICOH KK·Filed 2002·Granted Oct 26, 2004·9 cites·16 claims
- 4464US9176424B2Toner container and image forming apparatusKADOTA ICHIRO·Filed 2014·Granted Nov 3, 2015·0 cites·13 claims
- 4562US8958718B2Toner container and image forming apparatusKADOTA ICHIRO·Filed 2013·Granted Feb 17, 2015·0 cites·17 claims
- 4660US8600262B2Toner container and image forming apparatusKADOTA ICHIRO·Filed 2012·Granted Dec 3, 2013·0 cites·18 claims
- 4760USD622311SToner cartridgeRICOH KK·Filed 2009·Granted Aug 24, 2010·10 cites·1 claims
- 4858US11454897B2Developing device and image forming apparatus containing regulated bearingRICOH CO LTD·Filed 2021·Granted Sep 27, 2022·0 cites·15 claims
- 4958US9329526B2Developer container, developer replenishing device, developing device, and image forming apparatus using sameTAKAHASHI MASAKI·Filed 2015·Granted May 3, 2016·0 cites·14 claims
- 5052USD683391SPowder containerTAKAHASHI MASAKI·Filed 2011·Granted May 28, 2013·7 cites·1 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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