Inventor · disambiguated record
Yuki Oshikawa
Also filed as: OSHIKAWA YUKI
37 granted patents·2 pending applications·94 citations·filing 2007–2022
96Inventor score
Top patents by PatentIndex Score
39 records- 0196US8755721B2Powder container, powder supply assembly, and image forming apparatus in which a powder outlet faces in an opposite direction as an opening of a container bodyOSHIKAWA YUKI·Filed 2011·Granted Jun 17, 2014·16 cites·15 claims
- 0293US9170530B2Powder container and image forming apparatus incorporating sameOSHIKAWA YUKI·Filed 2011·Granted Oct 27, 2015·9 cites·19 claims
- 0386US9134697B2Powder container, powder supply assembly, and image forming apparatus in which a powder outlet faces in an opposite direction as an opening of a container bodyOSHIKAWA YUKI·Filed 2014·Granted Sep 15, 2015·3 cites·4 claims
- 0485US7962071B2Developing device and image forming apparatus using sameRICOH CO LTD·Filed 2008·Granted Jun 14, 2011·8 cites·19 claims
- 0584US9625851B2Developing device and image forming apparatus incorporating sameOSHIKAWA YUKI·Filed 2016·Granted Apr 18, 2017·2 cites·13 claims
- 0684US8126373B2Toner supply device and image forming apparatus that prevents toner from being scattered from the deviceUTSUNOMIYA KOHICHI·Filed 2008·Granted Feb 28, 2012·9 cites·19 claims
- 0784US7783209B2Image forming apparatus and method of activating the apparatus during filling with developing agentRICOH KK·Filed 2008·Granted Aug 24, 2010·7 cites·18 claims
- 0883US9176430B2Developing device and image forming apparatus incorporating sameYOSHIZAWA HIDEO·Filed 2014·Granted Nov 3, 2015·4 cites·20 claims
- 0982US8843019B2Development device and image forming apparatus incorporating sameYOSHIZAWA HIDEO·Filed 2012·Granted Sep 23, 2014·3 cites·15 claims
- 1080US8923726B2Image forming apparatus incorporating developing device with first and second sealsTSUDA KIYONORI·Filed 2012·Granted Dec 30, 2014·3 cites·14 claims
- 1176US8843015B2Imaging device, image forming apparatus, and process cartridgeUTSUNOMIYA KOHICHI·Filed 2012·Granted Sep 23, 2014·2 cites·19 claims
- 1275US7773920B2Toner drop suppressing developing apparatusRICOH KK·Filed 2007·Granted Aug 10, 2010·4 cites·9 claims
- 1374US11086251B2Image forming apparatus including control circuitry to execute a warm-up operationMASE RYUSUKE·Filed 2019·Granted Aug 10, 2021·1 cites·8 claims
- 1471US9405223B2Developing device, image forming apparatus, and process cartridgeOSHIKAWA YUKI·Filed 2015·Granted Aug 2, 2016·1 cites·18 claims
- 1565US9116468B2Powder storage container and image forming apparatus in which a gripping part includes a powder loading port and a sealing memberTERAZAWA SEIJI·Filed 2012·Granted Aug 25, 2015·1 cites·17 claims
- 1663US12167537B2Circuit board unit, detachable unit, and image forming apparatusOSHIKAWA YUKI·Filed 2021·Granted Dec 10, 2024·0 cites·20 claims
- 1762US11112731B2Developer container, developing device, and image forming apparatusRICOH CO LTD·Filed 2019·Granted Sep 7, 2021·0 cites·20 claims
- 1861US9772579B2Developing device and image forming apparatus incorporating sameOSHIKAWA YUKI·Filed 2016·Granted Sep 26, 2017·0 cites·4 claims
- 1961US8010020B2Developing device and image forming apparatus equipped with the sameRICOH CO LTD·Filed 2008·Granted Aug 30, 2011·2 cites·6 claims
- 2061US7991330B2Developing 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
- 2159USD667047SPowder containerOSHIKAWA YUKI·Filed 2011·Granted Sep 11, 2012·10 cites·1 claims
- 2256US12422764B2Toner container and image forming apparatusYOSHIZAWA HIDEO·Filed 2022·Granted Sep 23, 2025·0 cites·19 claims
- 2356US12130565B2Circuit board unit, attachment unit, and image forming apparatusOSHIKAWA YUKI·Filed 2021·Granted Oct 29, 2024·0 cites·19 claims
- 2455US11256194B2Developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2020·Granted Feb 22, 2022·0 cites·15 claims
- 2555US10444664B2Conveying device and image forming apparatus incorporating the conveying deviceOSHIKAWA YUKI·Filed 2018·Granted Oct 15, 2019·0 cites·17 claims
- 2654US10705484B2Developing device, process cartridge, and image forming apparatusOSHIKAWA YUKI·Filed 2019·Granted Jul 7, 2020·0 cites·10 claims
- 2752US11754947B2Toner container including a rotatable container body, a gear, and a held portionYOSHIZAWA HIDEO·Filed 2022·Granted Sep 12, 2023·0 cites·16 claims
- 2852US8064807B2Developer supply system and image forming apparatus incorporating sameKOEDA MAIKO·Filed 2009·Granted Nov 22, 2011·1 cites·20 claims
- 2951US11640124B2Developing device and image forming apparatus incorporating sameMATSUMOTO KENTAROU·Filed 2021·Granted May 2, 2023·0 cites·17 claims
- 3051US11573506B2Powder container, developing device, and image forming apparatus with multiple joints to prevent leakageMASE RYUSUKE·Filed 2021·Granted Feb 7, 2023·0 cites·16 claims
- 3150US9354586B2Communication connector and image forming apparatusOSHIKAWA YUKI·Filed 2014·Granted May 31, 2016·0 cites·14 claims
- 3249USD667048SPowder containerOSHIKAWA YUKI·Filed 2011·Granted Sep 11, 2012·6 cites·1 claims
- 3343US11163246B2Developing device including a conveyor with a space between blades and image forming apparatus including sameOHHIRA TATSUYA·Filed 2020·Granted Nov 2, 2021·0 cites·5 claims
- 3443US9109633B2Driving force transmission mechanism and image forming apparatusYOSHIZAWA HIDEO·Filed 2012·Granted Aug 18, 2015·0 cites·10 claims
- 3541US8086117B2Image forming apparatus and developer replenishing methodUNO MUGIJIROU·Filed 2008·Granted Dec 27, 2011·0 cites·7 claims
- 3640US9310715B2Developing device and image forming apparatusHATTORI YOSHIO·Filed 2013·Granted Apr 12, 2016·0 cites·19 claims
- 3738US2008253810A1Developing device, process cartridge, and image forming apparatusTATEYAMA SUSUMU·Filed 2008·Application pending·0 cites
- 3837US8121498B2Image forming apparatus and developer supply method thereforUNO MUGIJIRO·Filed 2008·Granted Feb 21, 2012·0 cites·16 claims
- 3937US2008175628A1Powder 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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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →