Inventor · disambiguated record
Masatoshi Yamashita
Also filed as: YAMASHITA MASATOSHI
49 granted patents·9 pending applications·471 citations·filing 1984–2024
98Inventor score
Top patents by PatentIndex Score
58 records- 0199US11112751B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Sep 7, 2021·6 cites·30 claims
- 0299US10139777B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2014·Granted Nov 27, 2018·25 cites·136 claims
- 0399US9804560B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2016·Granted Oct 31, 2017·35 cites·108 claims
- 0499US9429877B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2014·Granted Aug 30, 2016·34 cites·58 claims
- 0599US8862022B2Image forming apparatus and cartridgeCANON KK·Filed 2012·Granted Oct 14, 2014·32 cites·26 claims
- 0698US11614710B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Mar 28, 2023·3 cites·23 claims
- 0798US11385593B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jul 12, 2022·4 cites·16 claims
- 0898US10901365B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jan 26, 2021·6 cites·14 claims
- 0998US10228652B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Mar 12, 2019·18 cites·40 claims
- 1098US9037036B2Opening and closing mechanism and image-forming apparatusCANON KK·Filed 2013·Granted May 19, 2015·26 cites·18 claims
- 1197US10996623B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted May 4, 2021·7 cites·46 claims
- 1297US10712708B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Jul 14, 2020·11 cites·25 claims
- 1396US10705480B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2018·Granted Jul 7, 2020·6 cites·41 claims
- 1496US8983335B2Process cartridge, developing device and image forming apparatusCANON KK·Filed 2013·Granted Mar 17, 2015·20 cites·22 claims
- 1595US12050432B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Jul 30, 2024·1 cites·14 claims
- 1695US8396391B2Electrophotographic color image forming apparatusYAMASHITA MASATOSHI·Filed 2010·Granted Mar 12, 2013·18 cites·4 claims
- 1794US11520284B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Dec 6, 2022·2 cites·37 claims
- 1893US11960237B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Apr 16, 2024·1 cites·20 claims
- 1993US9857761B2Image forming apparatus having a supporting member for dismountably supporting one or more cartridgesCANON KK·Filed 2016·Granted Jan 2, 2018·8 cites·25 claims
- 2093US6556012B2Magnetic resonance imaging apparatusTOSHIBA KK·Filed 2001·Granted Apr 29, 2003·49 cites·6 claims
- 2192US9494915B2Image forming apparatus and cartridgeCANON KK·Filed 2015·Granted Nov 15, 2016·4 cites·20 claims
- 2291US6311389B1Gradient magnetic coil apparatus and method of manufacturing the sameTOSHIBA KK·Filed 1999·Granted Nov 6, 2001·85 cites·22 claims
- 2389US12287601B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2024·Granted Apr 29, 2025·0 cites·12 claims
- 2489US9996051B2Image forming apparatus and cartridgeCANON KK·Filed 2016·Granted Jun 12, 2018·2 cites·4 claims
- 2587US12306573B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted May 20, 2025·0 cites·18 claims
- 2687US9026001B2Image bearing member unit and image forming apparatusCANON KK·Filed 2013·Granted May 5, 2015·4 cites·22 claims
- 2785US10520886B2Image forming apparatus and cartridgeCANON KK·Filed 2018·Granted Dec 31, 2019·1 cites·10 claims
- 2885US7589531B2Gradient magnetic field coil unit, gantry for MRI apparatus, and MRI apparatusTOSHIBA KK·Filed 2007·Granted Sep 15, 2009·13 cites·16 claims
- 2982US9411301B2Frame for image forming apparatus and manufacturing method thereofCANON KK·Filed 2015·Granted Aug 9, 2016·2 cites·16 claims
- 3080US8400553B2Image pickup lens and image pickup device using the sameYAMASHITA MASATOSHI·Filed 2010·Granted Mar 19, 2013·7 cites·7 claims
- 3178US9063461B2Image forming apparatus provided with an agitation member configured to be rotatedCANON KK·Filed 2013·Granted Jun 23, 2015·2 cites·20 claims
- 3274US8680862B2Magnetic resonance imaging apparatusYAMASHITA MASATOSHI·Filed 2010·Granted Mar 25, 2014·3 cites·17 claims
- 3373US11852999B2Image forming device with frame having metal plates with improved resiliencyCANON KK·Filed 2022·Granted Dec 26, 2023·0 cites·13 claims
- 3472US7816919B2Magnetic resonance apparatus gantry and magnetic resonance apparatusTOSHIBA KK·Filed 2008·Granted Oct 19, 2010·6 cites·14 claims
- 3569US11493875B2Image forming apparatus with frame having metal plates with improved resiliencyCANON KK·Filed 2019·Granted Nov 8, 2022·0 cites·16 claims
- 3669US10666846B2Imaging devicePANASONIC IP MAN CO LTD·Filed 2017·Granted May 26, 2020·1 cites·4 claims
- 3769US8451546B2Image pickup lens, image pickup device using same, and portable device equipped with image pickup deviceIBA TAKUMI·Filed 2010·Granted May 28, 2013·4 cites·5 claims
- 3869US8194333B2Imaging lens and imaging device using the sameIBA TAKUMI·Filed 2009·Granted Jun 5, 2012·6 cites·5 claims
- 3969US8070304B2Camera lens unitMATSUOKA KOUICHIRO·Filed 2006·Granted Dec 6, 2011·9 cites·19 claims
- 4065US9132778B2Luggage board movement mechanismNISSAN MOTOR·Filed 2013·Granted Sep 15, 2015·4 cites·8 claims
- 4164US2015010325A1Image forming apparatus and cartridgeCANON KK·Filed 2014·Application pending·0 cites
- 4259US8379328B2Imaging lens and imaging device using the lensPANASONIC CORP·Filed 2009·Granted Feb 19, 2013·2 cites·3 claims
- 4351US2011019281A1Imaging optical system and imaging device using the samePANASONIC CORP·Filed 2009·Application pending·0 cites
- 4451US2010025253A1Method for coating a metal with a ceramic coating, electrolyte used therefor, ceramic coating, and metal materialYOSHIOKA NOBUAKI·Filed 2007·Application pending·0 cites
- 4549US10197649B2Gradient magnetic-field coil and magnetic-resonance imaging apparatusTOSHIBA MEDICAL SYS CORP·Filed 2015·Granted Feb 5, 2019·0 cites·18 claims
- 4648US9939499B2Magnetic resonance imaging apparatusTOSHIBA MEDICAL SYS CORP·Filed 2013·Granted Apr 10, 2018·0 cites·9 claims
- 4747US10459048B2Magnetic resonance imaging apparatus and gradient coilTOSHIBA MEDICAL SYS CORP·Filed 2015·Granted Oct 29, 2019·0 cites·14 claims
- 4845US9022675B2Image forming apparatus having a member for forming an imageCANON KK·Filed 2012·Granted May 5, 2015·0 cites·9 claims
- 4945US7719272B2Magnetic resonance imaging apparatusTOSHIBA KK·Filed 2008·Granted May 18, 2010·0 cites·13 claims
- 5044US2014347515A1Imaging lens and imaging device using samePANASONIC CORP·Filed 2012·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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