Inventor · disambiguated record
Hiroyuki Okaji
Also filed as: OKAJI HIROYUKI
8 granted patents·1 pending application·94 citations·filing 1998–2010
84Inventor score
Technology areasG03G
Top patents by PatentIndex Score
9 records- 0193US6128449AImage forming apparatus and method for controlling charging and developing bias voltageRICOH KK·Filed 1998·Granted Oct 3, 2000·72 cites·12 claims
- 0285US7801467B2Developing-agent container, method of manufacturing developing-agent container, developing-agent supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Sep 21, 2010·8 cites·20 claims
- 0377US7925190B2Developer supply device and image forming apparatus comprising sameRICOH CO LTD·Filed 2007·Granted Apr 12, 2011·5 cites·15 claims
- 0467US8086146B2Image forming method and apparatus for effectively supplying developerUNO MUGIJIROU·Filed 2006·Granted Dec 27, 2011·3 cites·13 claims
- 0563US7787813B2Image forming apparatus capable of stably conveying recording mediumRICOH KK·Filed 2006·Granted Aug 31, 2010·2 cites·19 claims
- 0661US7991330B2Developing unit including developer conveyance system having supply path, recovery path, and agitation path, process cartridge including developing unit, and image forming apparatus including process cartridgeRICOH CO LTD·Filed 2008·Granted Aug 2, 2011·2 cites·15 claims
- 0753US8180249B2Image forming apparatusOKAJI HIROYUKI·Filed 2008·Granted May 15, 2012·2 cites·20 claims
- 0850US7962078B2Image forming apparatus capable of stably conveying recording mediumRICOH CO LTD·Filed 2010·Granted Jun 14, 2011·0 cites·20 claims
- 0937US2008175628A1Powder filling method, powder container, developer replenishing device, developer replenishing method, and image forming apparatusKITA EMI·Filed 2008·Application pending·0 cites
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