Inventor · disambiguated record
Masato Koyanagi
Also filed as: KOYANAGI MASATO
16 granted patents·130 citations·filing 2003–2014
93Inventor score
Technology areasG03G
Top patents by PatentIndex Score
16 records- 0195US7277659B2Image forming apparatus and seal retractorCANON KK·Filed 2005·Granted Oct 2, 2007·27 cites·11 claims
- 0291US7593670B2Charging device including a contact charging member with silica thereon, process cartridge including a contact charging member, and image forming apparatus including such charging memberCANON KK·Filed 2006·Granted Sep 22, 2009·15 cites·16 claims
- 0389US7209690B2Developing apparatusCANON KK·Filed 2005·Granted Apr 24, 2007·13 cites·16 claims
- 0487US9213258B2Developing assembly, process cartridge, and image-forming apparatusCANON KK·Filed 2014·Granted Dec 15, 2015·4 cites·15 claims
- 0586US7457554B2Image forming apparatus wherein an image forming region and a non-image forming region are charged with different potentialsCANON KK·Filed 2005·Granted Nov 25, 2008·8 cites·12 claims
- 0684US6909869B2Developer regulating member and developing apparatusCANON KK·Filed 2003·Granted Jun 21, 2005·24 cites·41 claims
- 0783US9256156B2Developing assembly, process cartridge, and image-forming apparatusCANON KK·Filed 2014·Granted Feb 9, 2016·3 cites·17 claims
- 0879US9098010B2Development device, process cartridge, and image forming apparatusCANON KK·Filed 2013·Granted Aug 4, 2015·2 cites·24 claims
- 0976US8116668B2Toner supplying roller, developing apparatus, and image forming apparatusKOYANAGI MASATO·Filed 2009·Granted Feb 14, 2012·6 cites·7 claims
- 1076US7711279B2Image forming apparatus with a predetermined potential difference between regions of an image bearing memberCANON KK·Filed 2008·Granted May 4, 2010·4 cites·9 claims
- 1166US6952551B2Developer carrying member and developing apparatusCANON KK·Filed 2003·Granted Oct 4, 2005·9 cites·20 claims
- 1257US7123849B2Image forming apparatus, image forming apparatus control method, cartridge, and storage mediumCANON KK·Filed 2004·Granted Oct 17, 2006·6 cites·19 claims
- 1354US6983120B2Cleaning blade, cleaning device, process cartridge, and image forming apparatus using themCANON KK·Filed 2004·Granted Jan 3, 2006·5 cites·23 claims
- 1453US9250564B2Developing device and image forming apparatusCANON KK·Filed 2014·Granted Feb 2, 2016·0 cites·14 claims
- 1552US9098014B2Developing device and image forming apparatusCANON KK·Filed 2014·Granted Aug 4, 2015·0 cites·8 claims
- 1650US7239832B2Developer regulation member and developing apparatusCANON KK·Filed 2004·Granted Jul 3, 2007·4 cites·46 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →