Inventor
TANAKA CHIAKI
133 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA CHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
44 patentsUS6660443B2Dec 9, 2003
Dry toner and image forming method using same
RICOH KK138 citations99
US6756175B2Jun 29, 2004
Method for fixing toner
RICOH KK90 citations98
US6548216B2Apr 15, 2003
Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefrom
RICOH KK77 citations98
US6492079B2Dec 10, 2002
Electrophotographic photoconductor, image forming apparatus, and process cartridge using the photoconductor
RICOH KK84 citations98
US6194535B1Feb 27, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK85 citations98
US6066428AMay 23, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK100 citations98
US7005223B2Feb 28, 2006
Toner composition and method for manufacturing the toner composition
RICOH KK45 citations96
US6191249B1Feb 20, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK64 citations96
US6187494B1Feb 13, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor
RICOH KK62 citations96
US6172176B1Jan 9, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK49 citations96
US6069224AMay 30, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK54 citations96
US5976746ANov 2, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK65 citations96
US5942363AAug 24, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK72 citations96
US5910561AJun 8, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK60 citations96
US5846680ADec 8, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK70 citations96
US5840454ANov 24, 1998
Aromatic polycarbonate and electrophotographic photosensitive medium using same
RICOH KK62 citations96
US5789128AAug 4, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK73 citations96
US5723243AMar 3, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK57 citations96
US7306887B2Dec 11, 2007
Toner and developer for electrostatic development, production thereof, image forming process and apparatus using the same
RICOH KK19 citations93
US7163775B2Jan 16, 2007
Toner for developing electrostatic image, method for manufacturing the toner, developer including the toner, container containing the toner, and color image forming method using the toner
RICOH KK20 citations93
US7122284B2Oct 17, 2006
Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefrom
RICOH KK17 citations93
US7056633B2Jun 6, 2006
Electrophotographic photoconductor, image forming method and apparatus, and process cartidge using the photocondutor, and long-chain alkyl group containing bisphenol compound and polymer made therefrom
RICOH KK19 citations93
US7056635B2Jun 6, 2006
Toner, method of producing the toner, developer including the toner, and image forming method and apparatus using the developer
RICOH KK38 citations93
US6974654B2Dec 13, 2005
Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefrom
RICOH KK19 citations93
US6835519B2Dec 28, 2004
Dry toner and image forming method using same
RICOH KK33 citations93
US6596449B2Jul 22, 2003
Electrophotographic photoreceptor, and process cartridge and electrophotographic image forming apparatus using the electrophotographic photoreceptor
RICOH KK45 citations93
US6184362B1Feb 6, 2001
Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds
RICOH KK15 citations93
US6103435AAug 15, 2000
Electrophotographic photoconductor, AZO compounds for use in the same, and intermediates for producing the AZO compounds
RICOH KK18 citations93
US5981124ANov 9, 1999
Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds
RICOH KK24 citations93
US5672728ASep 30, 1997
Method for preparing the pyrenylamine derivatives
RICOH KK25 citations93
US5616805AApr 1, 1997
Methods for preparing pyrenylamine derivatives and intermediates
RICOH KK24 citations93
US5599995AFeb 4, 1997
Electrophotographic photoconductor comprising pyrenylamine derivative, the pyrenylamine derivative, intermediate for preparation thereof, and method for preparing the pyrenylamine derivative and the intermediate
RICOH KK25 citations93
US5587516ADec 24, 1996
Electrophotographic photoconductor comprising pyrenylamine derivative, the pyrenylamine derivative, intermediate for preparation thereof, and method for preparing the pyrenylamine derivative and the intermediate
RICOH KK21 citations93
US5576132ANov 19, 1996
Electrophotographic photoconductor comprising pyrenylamine derivative
RICOH KK23 citations93
US5457232AOct 10, 1995
Pyrenylamine derivatives having unsaturated bond
RICOH KK27 citations93
US5344985ASep 6, 1994
Aldehyde intermediates for the preparation of pyrenylamine derivatives having unsaturated bond
RICOH KK29 citations93
US7531279B2May 12, 2009
Toner manufacturing method, toner and developer
RICOH KK22 citations92
US7459255B2Dec 2, 2008
Toner and developer, toner container, process cartridge, image-forming apparatus, and image-forming method using the same
RICOH KK31 citations92
US7449273B2Nov 11, 2008
Toner containing unsaturated polyester in binder resin, method for preparing the toner, and developer including the toner
RICOH KK31 citations92
US7374848B2May 20, 2008
Toner and method or preparing the toner
RICOH KK19 citations92
US7348121B2Mar 25, 2008
Toner, method for manufacturing the toner, developer including the toner, toner container containing the toner, and image forming method, image forming apparatus and process cartridge using the toner
RICOH KK23 citations92
US7348117B2Mar 25, 2008
Toner, method for manufacturing the toner, developer including the toner, toner container containing the toner, and image forming method, image forming apparatus and process cartridge using the toner
RICOH KK27 citations92
US6544701B2Apr 8, 2003
Reaction product, process for the production thereof, electrophotographic photoconductor using the reaction product, electrophotographic apparatus using the photoconductor, and process cartridge for electrophotographic apparatus
RICOH KK41 citations92
US6524761B2Feb 25, 2003
Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the same
RICOH KK19 citations92
TORAY INDUSTRIES
3 patentsBRIDGESTONE TIRE CO LTD
2 patentsMICROSOFT CORP
1 patentShowing the top 50 of 133 patents by PatentIndex Score.