Inventor
KAMI HIDETOSHI
JP59 patents
⚠️ This page may combine multiple inventors who share the name “KAMI HIDETOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
29 patentsUS6030733AFeb 29, 2000
Electrophotographic photoconductor with water vapor permeability
RICOH KK133 citations99
US5871876AFeb 16, 1999
Electrophotographic photoconductor
RICOH KK157 citations99
US6861188B2Mar 1, 2005
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the photoreceptor
RICOH KK77 citations98
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
US6151468ANov 21, 2000
Electrophotographic photoconductor
RICOH KK105 citations98
US6936388B2Aug 30, 2005
Electrophotographic photoreceptor, and image forming method, image forming apparatus, and image forming apparatus processing unit using same
RICOH KK59 citations96
US6790572B2Sep 14, 2004
Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK52 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
US7160658B2Jan 9, 2007
Electrophotographic photoreceptor, and image forming method, image forming apparatus, and image forming apparatus processing unit using same
RICOH KK31 citations93
US7018755B2Mar 28, 2006
Electrophotographic photoconductor, electrophotography method using the same, electrophotographic apparatus, electrographic apparatus process cartridge and electrophotographic photoconductor outermost surface layer coating solution
RICOH KK48 citations93
US6858362B2Feb 22, 2005
Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK24 citations93
US7341814B2Mar 11, 2008
Electrophotographic photoconductor, preparation method thereof, electrophotographic apparatus and process cartridge
RICOH KK19 citations92
US7314693B2Jan 1, 2008
Electrophotographic photoconductor, electrophotographic process, electrophotographic apparatus, and process cartridge
RICOH KK52 citations92
US7267916B2Sep 11, 2007
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the electrophotographic photoreceptor
RICOH KK48 citations92
US6844124B2Jan 18, 2005
Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK31 citations92
US7381511B2Jun 3, 2008
Photoreceptor, image forming method and image forming apparatus using the photoreceptor, process cartridge using the photoreceptor and coating liquid for the photoreceptor
RICOH KK27 citations91
US7177570B2Feb 13, 2007
Measurement of frictional resistance of photoconductor against belt in image forming apparatus, process cartridge, and image forming method
RICOH KK20 citations84
US6879799B2Apr 12, 2005
Image-forming apparatus and image-forming process-cartridge
RICOH KK14 citations84
US7315722B2Jan 1, 2008
Image forming apparatus and image forming method
RICOH KK17 citations79
US7060404B2Jun 13, 2006
Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor
RICOH KK8 citations74
US7709170B2May 4, 2010
Latent electrostatic image bearing member, and process cartridge, image forming apparatus and image forming method
RICOH KK4 citations63
US7282529B2Oct 16, 2007
Coating liquid for an electrographic photoreceptor and a method of preparation using a ball mill
RICOH KK2 citations63
US7127196B2Oct 24, 2006
Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor
RICOH KK4 citations63
US7718335B2May 18, 2010
Image bearing member, and image forming apparatus and process cartridge using the same
RICOH KK4 citations62
US7482104B2Jan 27, 2009
Toner, developer, toner container and latent electrostatic image carrier, and process cartridge, image forming method, and image forming apparatus using the same
RICOH KK2 citations62
US7386256B2Jun 10, 2008
Toner, developer, toner container and latent electrostatic image carrier, and process cartridge, image forming method, and image forming apparatus using the same
RICOH KK2 citations62
US7270924B2Sep 18, 2007
Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor
RICOH KK1 citations52
KAMI HIDETOSHI
10 patentsUS12429786B2Sep 30, 2025
Electronic device and method for producing the same, image forming method, and image forming apparatus
KAMI HIDETOSHI0 citations62
US8170449B2May 1, 2012
Image forming apparatus and process cartridge
KAMI HIDETOSHI2 citations62
US8084170B2Dec 27, 2011
Electrophotographic photoconductor, electrophotographic process cartridge containing the same and electrophotographic apparatus containing the same
KAMI HIDETOSHI4 citations62
US12577405B2Mar 17, 2026
Alumina powder and method of producing the same, and stack and method of producing the same
KAMI HIDETOSHI0 citations52
US12429787B2Sep 30, 2025
Electronic device and method for producing the same, image forming method, and image forming apparatus
KAMI HIDETOSHI0 citations51
US10545417B1Jan 28, 2020
Electrophotographic photoconductor, image forming apparatus, and image forming method
KAMI HIDETOSHI0 citations51
US8795935B2Aug 5, 2014
Electrophotographic photoconductor, production method of the same, image forming apparatus, and process cartridge
KAMI HIDETOSHI1 citations51
US8597863B2Dec 3, 2013
Electrophotographic photoreceptor, method of manufacturing electrophotographic photoreceptor, process cartridge, and image forming apparatus
KAMI HIDETOSHI1 citations51
US8512924B2Aug 20, 2013
Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the photoreceptor
KAMI HIDETOSHI1 citations51
US8119317B2Feb 21, 2012
Electrophotographic photoreceptor, and process cartridge and image forming apparatus using the photoreceptor
KAMI HIDETOSHI1 citations51
RICOH CO LTD
4 patentsUS8043773B2Oct 25, 2011
Image bearing member, image forming apparatus and process cartridge
RICOH CO LTD5 citations63
US11575095B2Feb 7, 2023
Photoelectric conversion device, process cartridge, and image forming apparatus
RICOH CO LTD0 citations61
US8043777B2Oct 25, 2011
Electrophotographic photoconductor, process cartridge, and image forming apparatus
RICOH CO LTD1 citations52
US7914959B2Mar 29, 2011
Image bearing member, image forming method, and image forming apparatus
RICOH CO LTD1 citations51
FUJIWARA YUKIO
3 patentsUS8669030B2Mar 11, 2014
Electrophotographic photoreceptor, and image forming method and apparatus using the same
FUJIWARA YUKIO4 citations72
US8293439B2Oct 23, 2012
Electrophotographic photorecptor, method of manufacturing electrophotographic photorecptor, image forming apparatus, and process cartridge
FUJIWARA YUKIO6 citations71
US8148038B2Apr 3, 2012
Image bearing member, process cartridge, image forming apparatus and method of forming image bearing member
FUJIWARA YUKIO1 citations51
EGAWA KAZUHIRO
2 patentsOHSHIMA KOHICHI
1 patentASANO TOMOHARU
1 patentShowing the top 50 of 59 patents by PatentIndex Score.