P

Inventor

NIIMI TATSUYA

JP69 patents
⚠️ This page may combine multiple inventors who share the name “NIIMI TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

39 patents
US5871876AFeb 16, 1999

Electrophotographic photoconductor

RICOH KK157 citations99
US6641964B2Nov 4, 2003

Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor

RICOH KK80 citations98
US6326112B1Dec 4, 2001

Electrophotographic photoreceptor, and process cartridge and image forming apparatus using the photoreceptor

RICOH KK117 citations98
US6790572B2Sep 14, 2004

Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor

RICOH KK52 citations96
US6757507B2Jun 29, 2004

Image formation apparatus using a dry two-component developer for development

RICOH KK49 citations96
US6576388B2Jun 10, 2003

Multilayer electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the photoreceptor

RICOH KK68 citations96
US6558863B2May 6, 2003

Electrophotographic photoreceptor, electrophotographic image forming method and apparatus using the photoreceptor

RICOH KK59 citations96
US5853935ADec 29, 1998

Electrophotographic photoconductor

RICOH KK63 citations96
US5677094AOct 14, 1997

Electrophotographic photoconductor

RICOH KK53 citations96
US5547790AAug 20, 1996

Electrophotographic photoconductor containing polymeric charge transporting material in charge generating and transporting layers

RICOH KK47 citations96
US6653033B1Nov 25, 2003

Electrophotographic photoconductor, method of manufacturing same and image forming method, image forming apparatus and process cartridge using same

RICOH KK46 citations95
US6573016B2Jun 3, 2003

Electrophotographic photoconductor, method of manufacturing same and image forming method, image forming apparatus and process cartridge using same

RICOH KK71 citations95
US6858362B2Feb 22, 2005

Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor

RICOH KK24 citations93
US6562531B2May 13, 2003

Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor

RICOH KK35 citations93
US6516169B2Feb 4, 2003

Electrophotographic image forming apparatus having a gap between photoreceptor and charger, and process cartridge therefor

RICOH KK34 citations93
US6218533B1Apr 17, 2001

Method for manufacturing pigment, electrophotographic photoconductor using the pigment and electrophotographic image forming method and apparatus using the photoconductor

RICOH KK40 citations93
US6132911AOct 17, 2000

Method for manufacturing pigment, electrophotographic photoconductor using the pigment and electrophotographic image forming method and apparatus using the photoconductor

RICOH KK40 citations93
US6087055AJul 11, 2000

Electrophotographic photoconductor

RICOH KK42 citations93
US6902857B2Jun 7, 2005

Method for forming electrophotographic image and electrographic device

RICOH KK48 citations92
US6902858B2Jun 7, 2005

Image formation apparatus using a dry two-component developer for development

RICOH KK21 citations92
US6844124B2Jan 18, 2005

Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor

RICOH KK31 citations92
US5804343ASep 8, 1998

Electrophotographic photoconductor

RICOH KK35 citations92
US7796902B2Sep 14, 2010

Image forming condition adjustment control for image forming apparatus

RICOH KK11 citations84
US7764906B2Jul 27, 2010

Image forming apparatus and image forming method

RICOH KK11 citations84
US7670743B2Mar 2, 2010

Image forming method

RICOH KK8 citations84
US7560203B2Jul 14, 2009

Electrophotographic photoreceptor, method of image formation, image formation apparatus and process cartridge for image formation apparatus

RICOH KK12 citations84
US6677091B2Jan 13, 2004

Electrophotographic photoreceptor and electrophotographic apparatus

RICOH KK13 citations84
US7371491B2May 13, 2008

Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor

RICOH KK8 citations74
US7371490B2May 13, 2008

Photoconductor, image forming apparatus, image forming process, and process cartridge

RICOH KK7 citations74
US7186490B1Mar 6, 2007

Photosensitive material, electrophotographic photoreceptor using the material, and electrophotographic image forming method and apparatus using the photoreceptor

RICOH KK9 citations74
US7060404B2Jun 13, 2006

Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor

RICOH KK8 citations74
US7029810B2Apr 18, 2006

Electrophotographic image forming apparatus

RICOH KK8 citations74
US6803162B2Oct 12, 2004

Electrophotographic image forming apparatus, photoreceptor therefor and method for manufacturing the photoreceptor

RICOH KK9 citations74
US7408659B2Aug 5, 2008

Server computer, information terminal, printing system, remote printing method, recording medium, and computer data signal embeded in a carrier wave

RICOH KK8 citations72
US7824830B2Nov 2, 2010

Coating liquid and electrophotographic photoreceptor prepared using the coating liquid

RICOH KK5 citations63
US7785762B2Aug 31, 2010

Image forming apparatus and image forming method

RICOH KK2 citations63
US7534538B2May 19, 2009

Coating liquid for intermediate layer in electrophotographic photoconductor, electrophotographic photoconductor utilizing the same, image forming apparatus and process cartridge for image forming apparatus

RICOH KK3 citations63
US7354686B2Apr 8, 2008

Electrophotographic photoconductor and process for manufacturing the same, and image forming apparatus and process cartridge containing the same

RICOH KK6 citations63
US7282529B2Oct 16, 2007

Coating liquid for an electrographic photoreceptor and a method of preparation using a ball mill

RICOH KK2 citations63

RICOH CO LTD

5 patents

IWATA HIROSHI

2 patents

TAKEDA PHARMACEUTICAL

1 patent

ASTELLAS PHARMA INC

1 patent

NIIMI TATSUYA

1 patent

TAKEDA PHARMACEUTICALS CO

1 patent

Showing the top 50 of 69 patents by PatentIndex Score.