Inventor · disambiguated record
Tsutomu Katoh
Also filed as: KATOH TSUTOMU
25 granted patents·4 pending applications·450 citations·filing 1991–2013
96Inventor score
Top patents by PatentIndex Score
29 records- 0196US5175565AInk jet substrate including plural temperature sensors and heatersCANON KK·Filed 1991·Granted Dec 29, 1992·133 cites·15 claims
- 0294US7509073B2Image forming apparatus and belt unitRICOH KK·Filed 2006·Granted Mar 24, 2009·19 cites·17 claims
- 0394US5950062AToner sorting device for separating reusable toner from used toner and image forming apparatus using the same deviceRICOH KK·Filed 1998·Granted Sep 7, 1999·84 cites·66 claims
- 0490US7933546B2Lubricant applying device and image forming apparatusRICOH CO LTD·Filed 2007·Granted Apr 26, 2011·11 cites·14 claims
- 0590US7899386B2Image forming apparatus and guide therefor capable of reducing toner scattered on recording mediumRICOH CO LTD·Filed 2006·Granted Mar 1, 2011·9 cites·18 claims
- 0689US7627268B2Image forming apparatus capable of providing a stable belt movement in a belt unitRICOH KK·Filed 2006·Granted Dec 1, 2009·10 cites·11 claims
- 0789US7499665B2Belt device including an annular belt, and an image forming apparatus for detection of rotational angular speed or rotational angular displacementRICOH KK·Filed 2006·Granted Mar 3, 2009·11 cites·26 claims
- 0889US6234599B1Substrate having a built-in temperature detecting element, and ink jet apparatus having the sameCANON KK·Filed 1994·Granted May 22, 2001·53 cites·19 claims
- 0983US7493061B2Process cartridge including at least one replaceable member and image forming apparatusRICOH KK·Filed 2004·Granted Feb 17, 2009·22 cites·35 claims
- 1082US7609998B2Transfer unit and image forming apparatusRICOH KK·Filed 2007·Granted Oct 27, 2009·6 cites·10 claims
- 1182US7274897B2Image forming method and apparatus with a transfer beltRICOH KK·Filed 2004·Granted Sep 25, 2007·19 cites·27 claims
- 1281US7885588B2Transfer assembly and image forming apparatus including sameRICOH CO LTD·Filed 2007·Granted Feb 8, 2011·6 cites·12 claims
- 1380US7848692B2Neutralization unit and image forming apparatus having a neutralization unit for removing electric chargeRICOH CO LTD·Filed 2006·Granted Dec 7, 2010·6 cites·15 claims
- 1480US7302208B2Unit supporting device and image forming apparatusRICOH KK·Filed 2005·Granted Nov 27, 2007·6 cites·19 claims
- 1579US8219000B2Image forming apparatus capable of effectively performing a maintenance operationKUMA KAZUOSA·Filed 2006·Granted Jul 10, 2012·6 cites·41 claims
- 1677US7522850B2Image forming apparatus, process cartridge, developing unit, and image forming methodRICOH KK·Filed 2006·Granted Apr 21, 2009·4 cites·67 claims
- 1776US8249468B2Image forming apparatusKUMA KAZUOSA·Filed 2009·Granted Aug 21, 2012·5 cites·15 claims
- 1875US6505907B2Recording apparatus having abnormality determination based on temperature and average ejection duty cycleCANON KK·Filed 2002·Granted Jan 14, 2003·12 cites·8 claims
- 1971US6598952B2Liquid jet recording head having controller for controlling temperature distributionCANON KK·Filed 2000·Granted Jul 29, 2003·10 cites·18 claims
- 2066US8139968B2Image forming apparatusKATOH TSUTOMU·Filed 2009·Granted Mar 20, 2012·3 cites·20 claims
- 2165US7306779B2Lithium-cobalt composite oxide, process for its production, positive electrode for lithium secondary cell employing it, and lithium secondary cellSEIMI CHEM KK·Filed 2003·Granted Dec 11, 2007·7 cites·11 claims
- 2260US7158730B2Image forming apparatus, process cartridge, developing unit, and image forming methodRICOH KK·Filed 2004·Granted Jan 2, 2007·6 cites·120 claims
- 2358US8315545B2Image forming apparatus utilizing both a transfer belt and a direct transfer memberSUDO KAZUHISA·Filed 2009·Granted Nov 20, 2012·2 cites·12 claims
- 2456US2013177341A1Image forming apparatus and guide therefor capable of reducing toner scattered on recording mediumSAEKI KAZUCHIKA·Filed 2013·Application pending·0 cites
- 2553US2007111097A1Lithium-cobalt composite oxide, process for its production, positive electrode for lithium secondary cell employing it, and lithium secondary cellSEIMI CHEM KK·Filed 2007·Application pending·0 cites
- 2640US2008145102A1Surface-moving-body driving device, belt device, and image forming apparatusRICOH KK·Filed 2007·Application pending·0 cites
- 2739US2007248391A1Image forming apparatus with sheet guiding unit between transfering unit and fixing unitYOKOKAWA NOBUTO·Filed 2007·Application pending·0 cites
- 2838US8929774B2Belt unit and image forming apparatus employing sameKATOH TSUTOMU·Filed 2011·Granted Jan 6, 2015·0 cites·17 claims
- 2938US8583022B2Lubricant coating device and image forming apparatus incorporating the lubricant coating deviceWATANABE YOHHEI·Filed 2011·Granted Nov 12, 2013·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →