Inventor · disambiguated record
Yoshihiro Fujiwara
Also filed as: FUJIWARA YOSHIHIRO
37 granted patents·2 pending applications·439 citations·filing 1982–2023
97Inventor score
Files withFUJIWARA YOSHIHIRO5RICOH KK5MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4MIYOSHI YASUO4OSHIKAWA YUKI4
Top patents by PatentIndex Score
39 records- 0196US5427601ASintered metal bodies and manufacturing method thereforNGK INSULATORS LTD·Filed 1991·Granted Jun 27, 1995·73 cites·102 claims
- 0295US7610004B2Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of imageRICOH KK·Filed 2007·Granted Oct 27, 2009·21 cites·19 claims
- 0395US7003238B2Intermediate image transfer device for a color image forming apparatusRICOH KK·Filed 2003·Granted Feb 21, 2006·62 cites·69 claims
- 0493US7497632B2Camera devicePANASONIC CORP·Filed 2005·Granted Mar 3, 2009·43 cites·10 claims
- 0593US7203433B2Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of imageRICOH KK·Filed 2004·Granted Apr 10, 2007·43 cites·7 claims
- 0690US8571449B2Development device, process cartridge, and image forming apparatusMIYOSHI YASUO·Filed 2010·Granted Oct 29, 2013·5 cites·58 claims
- 0790US8326180B2Development device, process cartridge, and image forming apparatusFUJIWARA YOSHIHIRO·Filed 2010·Granted Dec 4, 2012·7 cites·17 claims
- 0890US7280792B2Method for evaluating changes in resistance of electric resistance member and image forming apparatus using sameRICOH KK·Filed 2004·Granted Oct 9, 2007·34 cites·11 claims
- 0989US8750752B2Development device including a removable seal to seal a supplied-developer and/or a collected-developer communicating areaMIYOSHI YASUO·Filed 2013·Granted Jun 10, 2014·4 cites·12 claims
- 1087US8326184B2Development device and image forming apparatusKUDO NORIO·Filed 2010·Granted Dec 4, 2012·5 cites·7 claims
- 1187US4435842AProgrammable channel selecting apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Mar 6, 1984·68 cites·2 claims
- 1285US8457516B2Image forming apparatus and method using an environment detector which changes a test toner image based on a detection resultFUJIWARA YOSHIHIRO·Filed 2012·Granted Jun 4, 2013·4 cites·13 claims
- 1384US9625851B2Developing device and image forming apparatus incorporating sameOSHIKAWA YUKI·Filed 2016·Granted Apr 18, 2017·2 cites·13 claims
- 1483US9176430B2Developing device and image forming apparatus incorporating sameYOSHIZAWA HIDEO·Filed 2014·Granted Nov 3, 2015·4 cites·20 claims
- 1581US8909095B2Process cartridge for image forming apparatus including a hollow alignment shaftYAMANE MASAYUKI·Filed 2012·Granted Dec 9, 2014·3 cites·19 claims
- 1680US8649714B2Development device, process cartridge, and image forming apparatus including sameKUDO NORIO·Filed 2011·Granted Feb 11, 2014·3 cites·7 claims
- 1780US8433224B2Development device, process cartridge including same, and image forming apparatus including sameFUJIWARA YOSHIHIRO·Filed 2010·Granted Apr 30, 2013·3 cites·13 claims
- 1878US7101095B2Rotation type camera apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 5, 2006·12 cites·8 claims
- 1974US11086251B2Image forming apparatus including control circuitry to execute a warm-up operationMASE RYUSUKE·Filed 2019·Granted Aug 10, 2021·1 cites·8 claims
- 2073US8971769B2Development device including a removable seal to seal a supplied-developer and/or a collected-developer communicating areaMIYOSHI YASUO·Filed 2014·Granted Mar 3, 2015·1 cites·13 claims
- 2173US8953987B2Development device, and process cartridge and image forming apparatus including sameKIMURA HIDEKI·Filed 2014·Granted Feb 10, 2015·1 cites·9 claims
- 2271US9405223B2Developing device, image forming apparatus, and process cartridgeOSHIKAWA YUKI·Filed 2015·Granted Aug 2, 2016·1 cites·18 claims
- 2371US8816310B2Semiconductor relayHOSHINO NARUTOSHI·Filed 2010·Granted Aug 26, 2014·5 cites·6 claims
- 2470US8855536B2Development device, and process cartridge and image forming apparatus including same in which an angle formed using an end face of a buffer area is smaller than an angle of twist of a spiral bladeKIMURA HIDEKI·Filed 2012·Granted Oct 7, 2014·1 cites·7 claims
- 2567US8873979B2Development device, process cartridge, and image forming apparatus incorporating sameFUJIWARA YOSHIHIRO·Filed 2012·Granted Oct 28, 2014·1 cites·14 claims
- 2664US7616229B2Surveillance camera apparatusPANASONIC CORP·Filed 2003·Granted Nov 10, 2009·7 cites·27 claims
- 2764US6890110B2Rotation type camera apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 10, 2005·13 cites·7 claims
- 2862US11112731B2Developer container, developing device, and image forming apparatusRICOH CO LTD·Filed 2019·Granted Sep 7, 2021·0 cites·20 claims
- 2961US9772579B2Developing device and image forming apparatus incorporating sameOSHIKAWA YUKI·Filed 2016·Granted Sep 26, 2017·0 cites·4 claims
- 3056US11835887B2Developer accommodating device with screw including screw blade as rotator, developing device, process cartridge, and image forming apparatusTSUCHIYA Yuuki·Filed 2022·Granted Dec 5, 2023·0 cites·11 claims
- 3155US12222664B2Developing device, process cartridge, and image forming apparatus including an entrance seal which contacts an image bearerSAITO KEI·Filed 2023·Granted Feb 11, 2025·0 cites·15 claims
- 3255US11256194B2Developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2020·Granted Feb 22, 2022·0 cites·15 claims
- 3354US10705484B2Developing device, process cartridge, and image forming apparatusOSHIKAWA YUKI·Filed 2019·Granted Jul 7, 2020·0 cites·10 claims
- 3452US4665325ASolid state image sensor with signal amplificationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted May 12, 1987·12 cites·6 claims
- 3550US11275325B2Image forming apparatus including a process cartridge that includes a developing deviceRICOH CO LTD·Filed 2020·Granted Mar 15, 2022·0 cites·18 claims
- 3648US2008292338A1Image forming apparatusFUJIWARA YOSHIHIRO·Filed 2008·Application pending·0 cites
- 3743US8238801B2Developing device, process cartridge, method and image forming apparatus for developing an electrostatic latent image on an image carrierMIYOSHI YASUO·Filed 2009·Granted Aug 7, 2012·0 cites·13 claims
- 3840US2008145102A1Surface-moving-body driving device, belt device, and image forming apparatusRICOH KK·Filed 2007·Application pending·0 cites
- 3934US9897947B2Image forming apparatus executing charge removal for photoconductor thereof and control method for sameKANATANI YUKA·Filed 2016·Granted Feb 20, 2018·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →