Inventor
TOMITA MASAMI
JP152 patents
⚠️ This page may combine multiple inventors who share the name “TOMITA MASAMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
41 patentsUS6660443B2Dec 9, 2003
Dry toner and image forming method using same
RICOH KK138 citations99
US6363229B1Mar 26, 2002
Full-color toner image fixing method and apparatus
RICOH KK174 citations99
US6103441AAug 15, 2000
Color toner for electrophotography
RICOH KK148 citations99
US7702271B2Apr 20, 2010
Fixing device, and image forming apparatus using the fixing device
RICOH KK61 citations98
US7437111B2Oct 14, 2008
Fixing device, and image forming apparatus using the fixing device
RICOH KK73 citations98
US7374851B2May 20, 2008
Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method
RICOH KK67 citations98
US7318989B2Jan 15, 2008
Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method
RICOH KK71 citations98
US7313353B2Dec 25, 2007
Fixing unit with heat-resisting resin base member and image forming toner for use in the fixing unit
RICOH KK87 citations98
US7127204B2Oct 24, 2006
Belt fixing unit with heat-resisting resin base member and image forming toner for use in the fixing unit
RICOH KK101 citations98
US7056638B1Jun 6, 2006
Toner for electrophotography, developer using the same, process cartridge using the same, image-forming apparatus using the same, and image-forming process using the same
RICOH KK64 citations98
US6936390B2Aug 30, 2005
Toner, method of producing same and image forming device
RICOH KK93 citations98
US6852462B2Feb 8, 2005
Toner, method of forming the toner, and image forming method and apparatus using the toner
RICOH KK103 citations98
US6849369B2Feb 1, 2005
Toner for developing electrostatic image, method for manufacturing the toner, developer including the toner, container containing the toner, and developing method using the toner
RICOH KK91 citations98
US6846604B2Jan 25, 2005
Toner and image forming apparatus using the toner
RICOH KK81 citations98
US6787280B2Sep 7, 2004
Electrophotographic toner and method of producing same
RICOH KK102 citations98
US6756175B2Jun 29, 2004
Method for fixing toner
RICOH KK90 citations98
US6682866B2Jan 27, 2004
Toner for dry developing
RICOH KK98 citations98
US6074794AJun 13, 2000
Toner for dry developing
RICOH KK134 citations98
US5840456ANov 24, 1998
Color toner comprising two binder resins of differing softening point
RICOH KK125 citations98
US6740460B2May 25, 2004
Dry toner
RICOH KK82 citations97
US7129013B2Oct 31, 2006
Toner and developer for developing latent electrostatic images, and image forming apparatus
RICOH KK55 citations96
US7056636B2Jun 6, 2006
Dry toner, and process cartridge, image forming process and apparatus using the same
RICOH KK58 citations96
US7005223B2Feb 28, 2006
Toner composition and method for manufacturing the toner composition
RICOH KK45 citations96
US6824945B2Nov 30, 2004
Electrophotographic toner
RICOH KK70 citations96
US6800412B2Oct 5, 2004
Toner for dry developing
RICOH KK61 citations96
US5721083AFeb 24, 1998
Dry color toner for electrophotography and production process thereof
RICOH KK66 citations96
US5225303AJul 6, 1993
Dry-type toner including waxes release agent for electrophotography
RICOH KK63 citations96
US4762763AAug 9, 1988
Toner for developing electrostatic latent image
RICOH KK79 citations95
US7521164B2Apr 21, 2009
Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method
RICOH KK22 citations93
US7473508B2Jan 6, 2009
Toner, developer and image forming apparatus
RICOH KK21 citations93
US7429442B2Sep 30, 2008
Toner, and two component developer and image forming apparatus using the toner
RICOH KK27 citations93
US7299003B2Nov 20, 2007
Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consumption
RICOH KK50 citations93
US7266324B2Sep 4, 2007
Charging device, and process cartridge and image forming apparatus using the charging device
RICOH KK18 citations93
US7157199B2Jan 2, 2007
Toner, developer including the toner, container containing the toner or the developer and method of producing the toner
RICOH KK32 citations93
US7139504B2Nov 21, 2006
Charging device, and process cartridge and image forming apparatus using the charging device
RICOH KK24 citations93
US7050741B2May 23, 2006
Imaging apparatus, and toner and process cartridge used in the imaging apparatus
RICOH KK20 citations93
US6947692B2Sep 20, 2005
Image forming method and apparatus
RICOH KK34 citations93
US6835519B2Dec 28, 2004
Dry toner and image forming method using same
RICOH KK33 citations93
US5975446ANov 2, 1999
Pulverizing apparatus
RICOH KK38 citations93
US5851716ADec 22, 1998
Electrophotographic image forming method and toner composition used therefor
RICOH KK38 citations93
US7396630B2Jul 8, 2008
Toner, developer including the toner, and method for fixing toner image
RICOH KK14 citations92
SONY CORP
6 patentsUS6542695B1Apr 1, 2003
Video signal recording/reproduction apparatus and method with multi-picture display
SONY CORP96 citations97
US6449423B1Sep 10, 2002
Recording and playback apparatus for continuous playback of fragmented signals
SONY CORP62 citations96
US6330214B1Dec 11, 2001
Signal recording/reproducing apparatus and method
SONY CORP56 citations96
US6343097B2Jan 29, 2002
Noise reducer, noise reducing thereof, picture signal processing apparatus, and motion detecting method
SONY CORP22 citations93
US6282155B1Aug 28, 2001
Recording method and apparatus for continuous playback of fragmented signals
SONY CORP24 citations93
US6031806AFeb 29, 2000
Information signal recording and reproducing apparatus and recording and reproducing method
SONY CORP40 citations93
SHIMADZU CORP
3 patentsShowing the top 50 of 152 patents by PatentIndex Score.