Inventor · disambiguated record
Masayuki Ohsawa
Also filed as: OHSAWA MASAYUKI
29 granted patents·5 pending applications·439 citations·filing 1981–2013
96Inventor score
Top patents by PatentIndex Score
34 records- 0198US6528874B1Wiring circuit substrate and manufacturing method thereofNORTH CORP·Filed 2000·Granted Mar 4, 2003·120 cites·24 claims
- 0295US6646337B2Wiring circuit substrate and manufacturing method thereforNORTH CORP·Filed 2002·Granted Nov 11, 2003·50 cites·25 claims
- 0391US6828221B2Manufacturing method for wiring circuit substratesNORTH CORP·Filed 2002·Granted Dec 7, 2004·37 cites·4 claims
- 0488US4528064AMethod of making multilayer circuit boardSONY CORP·Filed 1981·Granted Jul 9, 1985·53 cites·8 claims
- 0587US4398975AConductive pasteSONY CORP·Filed 1981·Granted Aug 16, 1983·56 cites·10 claims
- 0686US8331834B2Developing unit, image forming apparatus incorporating same, and process cartridge including sameKOETSUKA KYOHTA·Filed 2009·Granted Dec 11, 2012·13 cites·23 claims
- 0784US8535116B2Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the sameABE HIROYA·Filed 2011·Granted Sep 17, 2013·3 cites·8 claims
- 0882US8565652B2Development roller, development device, process cartridge and image-forming apparatusTERASAKA TAKUMI·Filed 2012·Granted Oct 22, 2013·5 cites·9 claims
- 0981US7721422B2Methods of making microelectronic assembliesTESSERA INTERCONNECT MATERIALS·Filed 2007·Granted May 25, 2010·7 cites·20 claims
- 1081US7546681B2Manufacturing method for wiring circuit substrateTESSERA INTERCONNECT MATERIALS·Filed 2006·Granted Jun 16, 2009·6 cites·13 claims
- 1180US8023867B2Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 20, 2011·6 cites·17 claims
- 1279US7096578B2Manufacturing method for wiring circuit substrateTESSERA INTERCONNECT MATERIALS·Filed 2004·Granted Aug 29, 2006·15 cites·14 claims
- 1373US7890030B2Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2009·Granted Feb 15, 2011·4 cites·6 claims
- 1470US8731444B2Develop roller, develop unit, process cartridge, and image forming apparatusOHSAWA MASAYUKI·Filed 2011·Granted May 20, 2014·2 cites·11 claims
- 1569US7891094B2Method of manufacturing a hollow body used in an image forming apparatusRICOH CO LTD·Filed 2009·Granted Feb 22, 2011·4 cites·1 claims
- 1669US7664441B2Developer holding member, development device, process cartridge, image forming apparatus and method of manufacturing hollow bodyRICOH KK·Filed 2007·Granted Feb 16, 2010·4 cites·13 claims
- 1768US8135316B2Development roller, development device, process cartridge and image forming deviceKOJIMA TOSHIO·Filed 2009·Granted Mar 13, 2012·3 cites·17 claims
- 1862US7917067B2Magnetic field generating member and manufacturing method thereof, magnetic particle support body, image development device, process cartridge and image forming apparatusRICOH CO LTD·Filed 2008·Granted Mar 29, 2011·2 cites·16 claims
- 1959US5977739AStepping motor provided with a drive control integrated circuit having a prestored operating patternNIPPON PULSE MOTOR CO LTD·Filed 1997·Granted Nov 2, 1999·28 cites·3 claims
- 2058US8824932B2Development device, and process cartridge and image forming apparatus incorporating sameMASUDA KATSUMI·Filed 2011·Granted Sep 2, 2014·1 cites·6 claims
- 2158US7899374B2Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the sameRICOH CO LTD·Filed 2008·Granted Mar 1, 2011·1 cites·7 claims
- 2256US8500615B2Magnetic roller and manufacturing method thereof, developer carrier, development device, processing cartridge, and image forming apparatusIMAMURA TSUYOSHI·Filed 2008·Granted Aug 6, 2013·2 cites·14 claims
- 2354US4936693ALabel printing deviceTOKYO ELECTRIC CO LTD·Filed 1989·Granted Jun 26, 1990·16 cites·4 claims
- 2450US8135315B2Developer regulating member in a developing unit, process cartridge including same, and image forming apparatus incorporating sameOZEKI TAKAMASA·Filed 2009·Granted Mar 13, 2012·1 cites·20 claims
- 2549US7907876B2Developer carrier, development device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2009·Granted Mar 15, 2011·0 cites·9 claims
- 2646US8958729B2Magnet roller, developer bearer, development device, process cartridge, and image forming apparatusINNAMI TAKASHI·Filed 2013·Granted Feb 17, 2015·0 cites·10 claims
- 2744US7565098B2Developing device, process cartridge and image forming apparatusRICOH KK·Filed 2007·Granted Jul 21, 2009·0 cites·9 claims
- 2840US2008232865A1Magnet roller, developing agent carrier, developing unit, process cartridge and image forming apparatus using sameTERASHIMA MIEKO·Filed 2008·Application pending·0 cites
- 2939US8600271B2Magnet roller, developer holder element, develop unit, process cartridge, and image forming apparatusINNAMI TAKASHI·Filed 2011·Granted Dec 3, 2013·0 cites·6 claims
- 3038US8682230B2Development device, process cartridge, and image forming apparatus including same having multiple recesses formed on a developer bearerTAGUCHI NOBUYUKI·Filed 2011·Granted Mar 25, 2014·0 cites·14 claims
- 3138US2007127952A1Development device, process cartridge and image forming apparatusTERASHIMA MIEKO·Filed 2006·Application pending·0 cites
- 3235US2008226355A1Development device, process cartridge, and image formation apparatusKOETSUKA KYOHTA·Filed 2008·Application pending·0 cites
- 3334US2009154961A1Develop unit, process cartridge, and image formation apparatusKAMIYA NORIYUKI·Filed 2008·Application pending·0 cites
- 3432US2005097727A1Multi-layer wiring board, method for producing multi-layer wiring board, polishing machine for multi-layer wiring board, and metal sheet for producing wiring boardFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →