Inventor · disambiguated record
Kazuhisa Koizumi
Also filed as: KOIZUMI KAZUHISA
15 granted patents·4 pending applications·44 citations·filing 1991–2025
88Inventor score
Top patents by PatentIndex Score
19 records- 0185US7099614B2Color image forming apparatus and method of controlling sameCANON KK·Filed 2005·Granted Aug 29, 2006·9 cites·8 claims
- 0280US10241434B2Image forming apparatus and position detection methodCANON KK·Filed 2017·Granted Mar 26, 2019·2 cites·9 claims
- 0376US7359652B2Image forming apparatus with tone correction and control method thereofCANON KK·Filed 2005·Granted Apr 15, 2008·5 cites·8 claims
- 0472US9946215B2Image forming apparatus that switches between a first supply mode and a second supply modeCANON KK·Filed 2016·Granted Apr 17, 2018·1 cites·11 claims
- 0570US10787331B2Sheet conveying apparatus and image forming apparatusCANON KK·Filed 2018·Granted Sep 29, 2020·1 cites·36 claims
- 0668US2025284234A1Image forming system for inspecting quality of image formed on sheet and generating correction data to correct second image using the correction dataCANON KK·Filed 2025·Application pending·0 cites
- 0760US12339608B2Image forming system for inspecting quality of image formed on sheet and generates correction data to correct second image using the correction dataCANON KK·Filed 2022·Granted Jun 24, 2025·0 cites·8 claims
- 0855US2025274654A1Image processing apparatus and heat generation resistor circuitCANON KK·Filed 2025·Application pending·0 cites
- 0953US5262242AColored films for use in vacuum formingKANSAI PAINT CO LTD·Filed 1991·Granted Nov 16, 1993·22 cites·7 claims
- 1051US2025264835A1Image-processing apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1150US11841665B2Image forming apparatusCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·4 claims
- 1250US10437195B2Image forming apparatus having a heater that generates heat using alternating current voltage and a heater that generates heat using a direct current voltageCANON KK·Filed 2016·Granted Oct 8, 2019·0 cites·18 claims
- 1350US2024142907A1Image forming apparatus and shutdown method at time of power cut-offCANON KK·Filed 2023·Application pending·0 cites
- 1444US8185006B2Magnetic material detecting deviceTAKAHASHI KATSUMI·Filed 2009·Granted May 22, 2012·0 cites·4 claims
- 1543US11619898B2Image forming apparatus for controlling transfer voltage based on patternCANON KK·Filed 2022·Granted Apr 4, 2023·0 cites·14 claims
- 1642US8615176B2Electrophotographic image forming apparatus using a periodic wave as a developing biasKOIZUMI KAZUHISA·Filed 2011·Granted Dec 24, 2013·0 cites·8 claims
- 1740US11126128B2Image forming apparatusCANON KK·Filed 2020·Granted Sep 21, 2021·0 cites·15 claims
- 1840US6756617B2Image sensing apparatus and reading apparatusCANON KK·Filed 2002·Granted Jun 29, 2004·4 cites·8 claims
- 1933US9268289B2Image forming apparatusKOIZUMI KAZUHISA·Filed 2011·Granted Feb 23, 2016·0 cites·6 claims
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