Inventor

YOSHIDA TOMOFUMI

JP54 patents

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

YOSHIDA TOMOFUMI

RICOH CO LTD

Toner conveying device, process cartridge, and image forming apparatus

Developing device of image forming apparatus

Developing device and image forming apparatus that uses this developing device

Developing device, process cartridge and image forming apparatus

Waste-toner collecting device, process cartridge, and image forming apparatus

Waste-toner housing device, and image forming apparatus

Powder conveyance device, toner conveyance device, process cartridge and image forming apparatus

Cleaning device and image forming apparatus

Toner container with an operating structure disposed on a first side, a shutter disposed on a second side, and a lock

Toner container having a shutter, a lever disposed on one side, and a pivoting portion on the other side which rotate together with a common shaft

Toner container with an operating structure disposed on a first side, and a shutter disposed on a second side

Toner container, developing device, process cartridge, and image forming apparatus that include a toner container contacting surface to contact with a developing device engagement releasing structure

RICOH KK

Toner recovery belt conveyor, process cartridge, and image forming apparatus using the same

Toner collecting device, image forming unit and image forming apparatus

Process cartridge for image forming apparatus

Process cartridge for image forming apparatus

Process cartridge for image forming apparatus

Developing apparatus

Process cartridge for image forming apparatus

Process cartridge for image forming apparatus

Charging-roller bearing member, process cartridge, and image forming apparatus

Conveyor device, process cartridge, image forming apparatus, and method of forming image

YOSHIDA TOMOFUMI

Toner container, developing device, process cartridge, and image forming apparatus that include an operating member to move a shutter for a toner outlet via a linking member

Removable unit and image forming apparatus incorporating same

Developer amount detector, image forming apparatus incorporating same, and positioning structure for positioning unit within image forming apparatus

Process cartridge and image forming apparatus

Toner-collecting device and image forming apparatus

Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw

Toner agitating unit, toner hopper, process cartridge, and image forming apparatus

Developing device, process unit, and image forming apparatus

Toner container, developing device, process cartridge, and image forming apparatus that include a toner container contacting surface to contact with a developing device engagement releasing structure

Sensor system

KUBOTA TOMOHIRO

Toner supply method, development device, process unit, and image forming apparatus

Developer amount detector, and developer container, development device, and image forming apparatus incorporating same

Toner cartridge with refillable fresh and residual toner chambers, process cartridge, and method of making toner cartridge reusable

Seal member, developing device, process cartridge, and image forming apparatus

Seal member, developing device, process cartridge, and image forming apparatus

SHIMIZU YOSHIYUKI

Toner conveyer device, process cartridge, and image forming apparatus

Latent image carrier having pairs of first and second positioning protrusions and image forming apparatus

KAWAKAMI YOSHIHIRO

Process cartridge and image forming apparatus

HAMADA MANABU

Image forming apparatus capable of effectively utilizing interior space

HITACHI LTD

Image forming apparatus

OOYOSHI HIROBUMI

Developing device, process unit, and image forming apparatus, with supporting members, grooves, and supported developing roller

CANON KK

Document registration system, method thereof, program thereof and storage medium thereof

MITANI RIE

Powder supply device, developing device, and image forming apparatus

DENSO CORP

Electronic control device and steering system

NAKAMURA KENJI

Developer container, developing device, process cartridge, image forming device, and developer refilling method

RICOH PRINTING SYS LTD

Electronic color photography apparatus

FURUICHI YUUSUKE

Toner container, process cartridge, and image forming apparatus

OREAL

Cosmetic composition comprising a specific filler combination and a film-forming polymer to increase long-lasting effects