Inventor · disambiguated record
Kazuhiro Okubo
Also filed as: OKUBO KAZUHIRO
24 granted patents·149 citations·filing 2003–2019
95Inventor score
Technology areasG03G
Top patents by PatentIndex Score
24 records- 0190US7058338B2Image forming apparatus with reciprocating dispersing featureCANON KK·Filed 2005·Granted Jun 6, 2006·10 cites·7 claims
- 0289US10078291B2Developing apparatus having a projecting regulating member and process cartridgeCANON KK·Filed 2017·Granted Sep 18, 2018·4 cites·8 claims
- 0389US7580654B2Image forming apparatus featuring discharge prevention in a transfer separation areaCANON KK·Filed 2006·Granted Aug 25, 2009·11 cites·7 claims
- 0487US10866533B2Image forming apparatusCANON KK·Filed 2019·Granted Dec 15, 2020·2 cites·11 claims
- 0585US10921728B2Image forming apparatusCANON KK·Filed 2019·Granted Feb 16, 2021·2 cites·9 claims
- 0685US7286788B2Image forming apparatusCANON KK·Filed 2005·Granted Oct 23, 2007·7 cites·15 claims
- 0784US10712698B2Image forming apparatusCANON KK·Filed 2019·Granted Jul 14, 2020·2 cites·17 claims
- 0883US6928253B2Image forming apparatus including toner charging memberCANON KK·Filed 2003·Granted Aug 9, 2005·18 cites·27 claims
- 0981US10295926B2Image forming apparatusCANON KK·Filed 2018·Granted May 21, 2019·1 cites·12 claims
- 1080US7149437B2Image forming apparatus, and control system, cartridge and memory medium for the same apparatusCANON KK·Filed 2004·Granted Dec 12, 2006·19 cites·12 claims
- 1180US6807384B2Image forming apparatusCANON KK·Filed 2003·Granted Oct 19, 2004·19 cites·70 claims
- 1279US6922539B2Process cartridge and image forming apparatus in which the contact width of a developer charger with an image bearing member is greater than or equal to the sum of the developing width of developing means and the width of movement of the developer chargerCANON KK·Filed 2003·Granted Jul 26, 2005·18 cites·39 claims
- 1378US7120376B2Image forming apparatus featuring a four-step image bearing member controllerCANON KK·Filed 2004·Granted Oct 10, 2006·17 cites·18 claims
- 1478US6963707B2Image forming apparatus including first and second auxiliary residual developer charging featuresCANON KK·Filed 2003·Granted Nov 8, 2005·14 cites·21 claims
- 1577US8472823B2Image forming apparatus featuring a control device for controlling a developer discharge operation in first and second modesOKUBO KAZUHIRO·Filed 2010·Granted Jun 25, 2013·3 cites·13 claims
- 1672US8718499B2Image forming apparatusCANON KK·Filed 2013·Granted May 6, 2014·1 cites·14 claims
- 1767US8428477B2Image forming apparatusSHIBATA MASAHIRO·Filed 2010·Granted Apr 23, 2013·1 cites·8 claims
- 1862US10429766B2Developing apparatus having a large capacity toner storage chamber, and image forming apparatusCANON KK·Filed 2018·Granted Oct 1, 2019·0 cites·12 claims
- 1959US9996026B2Developing apparatus having a large capacity toner storage chamber, and image forming apparatusCANON KK·Filed 2017·Granted Jun 12, 2018·0 cites·19 claims
- 2048US10254694B2Image forming apparatusCANON KK·Filed 2018·Granted Apr 9, 2019·0 cites·11 claims
- 2147US10571823B2Image forming apparatus having recovery of toner by developing member, control of charging voltage and charging member cleaning operationCANON KK·Filed 2019·Granted Feb 25, 2020·0 cites·20 claims
- 2246US10558138B2Image forming apparatusCANON KK·Filed 2019·Granted Feb 11, 2020·0 cites·19 claims
- 2346US9268251B2Image forming apparatusCANON KK·Filed 2015·Granted Feb 23, 2016·0 cites·19 claims
- 2444US10539906B2Image forming apparatus to acquire image bearing member surface potentialsCANON KK·Filed 2018·Granted Jan 21, 2020·0 cites·20 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →