Inventor

ISHIMARU SEIJIRO

JP23 patents

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

ISHIMARU SEIJIRO

FUJI XEROX CO LTD

Toner for electrophotography, developing agent for electrophotography using the toner, image forming method, and image forming device

Electrostatic-image developing toner, electrostatic image developer, and toner cartridge

Toner for electrophotography and developer for electrophotography using the same, process cartridge, apparatus for forming image, and method for forming image

Toner for optical fixing, manufacturing method therefor and image formation apparatus using it

Image forming color toner, color image forming method and color image forming apparatus

Toner and an image formation method

Electrophotographic toner and image forming method

Positively chargeable two-component developer, image forming method, and image forming apparatus

Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge

Toner and an image formation method

Electrostatic-image developing toner, electrostatic image developer, and toner cartridge

Image forming apparatus, electrostatic charge image developer, and electrostatic charge image developing toner

MITA INDUSTRIAL CO LTD

Toner for a two-component-type magnetic developing agent having excellent spent resistance

Two-component developer

Electrophotographic developer

Toner for a two-component type developer

Electrophotographic developer

Toner for a two-component-type magnetic developing agent having excellent spent resistance

Electrophotographic developer comprising resin coated carrier

Start developer

Toner for a two-component type developer

FUJITSU LTD

Two component developing agent and an image forming apparatus by use of the same

Optical fixing toner