Inventor · disambiguated record
Kohji Hatayama
Also filed as: HATAYAMA KOHJI
24 granted patents·224 citations·filing 2006–2011
96Inventor score
Top patents by PatentIndex Score
24 records- 0194US7970297B2Powder container and image forming apparatusRICOH CO LTD·Filed 2008·Granted Jun 28, 2011·18 cites·19 claims
- 0293US8154770B2Image forming apparatusSHIRAKI TAKAMASA·Filed 2008·Granted Apr 10, 2012·28 cites·15 claims
- 0393US8089666B2Image forming apparatusANDOH TAKAYUKI·Filed 2008·Granted Jan 3, 2012·21 cites·16 claims
- 0492US7778568B2Image forming apparatus having guide member for detachable unitRICOH KK·Filed 2007·Granted Aug 17, 2010·14 cites·18 claims
- 0591US8322710B2Automatic document feeder with sheet detectorANDOH TAKAYUKI·Filed 2011·Granted Dec 4, 2012·9 cites·5 claims
- 0691US7873303B2Upper frame opening and closing mechanism, and image forming apparatus using the sameRICOH CO LTD·Filed 2008·Granted Jan 18, 2011·13 cites·22 claims
- 0791US7751762B2Transfer device and image forming apparatus including the sameRICOH KK·Filed 2007·Granted Jul 6, 2010·13 cites·28 claims
- 0890US8045887B2Image forming apparatusRICOH CO LTD·Filed 2007·Granted Oct 25, 2011·12 cites·31 claims
- 0989US8382095B2Sheet feeding unit, image reading device including same, and image forming apparatus including the image reading device with independent cover and restriction memberRICOH CO LTD·Filed 2010·Granted Feb 26, 2013·10 cites·9 claims
- 1088US7982923B2Image forming apparatusRICOH CO LTD·Filed 2008·Granted Jul 19, 2011·11 cites·5 claims
- 1187US8103186B2Image forming apparatusANDOH TAKAYUKI·Filed 2008·Granted Jan 24, 2012·9 cites·20 claims
- 1285US7904010B2Belt unit, transfer belt unit, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Mar 8, 2011·8 cites·9 claims
- 1383US7599633B2Image forming apparatus dust container including dust conveyance membersRICOH KK·Filed 2006·Granted Oct 6, 2009·7 cites·14 claims
- 1482US8244167B2Image forming apparatusANDOH TAKAYUKI·Filed 2008·Granted Aug 14, 2012·7 cites·2 claims
- 1582US7946578B2Automatic original conveying device and image forming apparatusRICOH CO LTD·Filed 2009·Granted May 24, 2011·7 cites·9 claims
- 1678US8265524B2Transfer device, image forming apparatus, and waste toner containerHATAYAMA KOHJI·Filed 2007·Granted Sep 11, 2012·7 cites·17 claims
- 1778US8194255B2Image forming apparatusANDOH TAKAYUKI·Filed 2008·Granted Jun 5, 2012·5 cites·17 claims
- 1878US8032071B2Image forming apparatus including a reading part supported by first and second supportersRICOH CO LTD·Filed 2008·Granted Oct 4, 2011·5 cites·7 claims
- 1976US8600288B2Image forming apparatusSHIRAKI TAKAMASA·Filed 2008·Granted Dec 3, 2013·5 cites·15 claims
- 2075US7970336B2Powder housing unit and image forming apparatus with powder housing unitRICOH CO LTD·Filed 2008·Granted Jun 28, 2011·4 cites·19 claims
- 2173US7643781B2Transfer device and image forming apparatusRICOH KK·Filed 2007·Granted Jan 5, 2010·4 cites·10 claims
- 2273US7616923B2Power guiding device and image forming apparatus having power guiding deviceRICOH KK·Filed 2007·Granted Nov 10, 2009·4 cites·12 claims
- 2371US7937028B2Image forming apparatuses having specialized toner structures and materialsRICOH CO LTD·Filed 2009·Granted May 3, 2011·3 cites·16 claims
- 2442US8204431B2Compact image forming apparatus with post-processingSHIRAKI TAKAMASA·Filed 2008·Granted Jun 19, 2012·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →