P

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 patents
US6660443B2Dec 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 patents

BRIDGESTONE TIRE CO LTD

2 patents

MICROSOFT CORP

1 patent

Showing the top 50 of 133 patents by PatentIndex Score.