Inventor

KITAJIMA RYOICHI

JP6 patents

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

RICOH KK

4 patents

US7341814B2Mar 11, 2008

Electrophotographic photoconductor, preparation method thereof, electrophotographic apparatus and process cartridge

RICOH KK19 citations92

US7315722B2Jan 1, 2008

Image forming apparatus and image forming method

RICOH KK17 citations79

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

RICOH CO LTD

1 patent

US8369755B2Feb 5, 2013

Developing device and image forming apparatus using the developing device

RICOH CO LTD2 citations61

YAMASHITA YASUYUKI

1 patent

US8396399B2Mar 12, 2013

Toner bearing member, developing device, image forming apparatus, and image forming method

YAMASHITA YASUYUKI0 citations38