Inventor

OSAWA IZUMI

JP75 patents

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

OSAWA IZUMI

MINOLTA CAMERA KK

Contact charging device having a brush restricting member

Charging device for charging the surface of a photosensitive member in an electrophotographic image forming device

Image forming apparatus including means for removing counter charged toner from the charging means

Photosensitive member excellent in antioxidation

Organic photosensitive member having fine irregularities on its surface

Method of production of amorphous hydrogenated carbon layer

Photosensitive member having an overcoat layer and process for manufacturing the same

Developer supplying member

Photosensitive member with hydrogen-containing carbon layer

Photosensitive member with an amorphous silicon-containing insulating layer

Photosensitive member having an overcoat layer comprising amorphous carbon

Resist layer and process for forming resist pattern thereon

Photosensitive member having fine cracks in surface protective layer

Image forming apparatus

Charging device and method for charging a charge-receiving member by a charging member by discharge therebetween based on difference in electric potential between the charging member and the charge-receiving member

Magnetic particle-containing member for use in copying machine

Contact member for controlling an electrostatic state of a chargeable member

Production method of photosensitive member by eliminating outermost surface portion of photosensitive layer

Photoreceptor for use in contact charging method and image forming apparatus employing said photoreceptor

Image forming apparatus with charge brush

Contact charger and image forming apparatus incorporating the contact charger

Image forming apparatus having a charging member and means for protecting the image bearing surface charged by the charging member

Contract charger

Photosensitive medium with a protective layer of amorphous hydrocarbon having an absorption coefficient greater than 10,000 cm-1

Image forming apparatus equipped with separating pawl with specified surface roughness

Separating device for sheet-like member including separating pawl coated with amorphous carbon layer

Photosensitive member excellent in antioxidation

Cleaning device

Photosensitive member having an overcoat layer

Developer containing halogenated amorphous carbon particles prepared by plasma-polymerization

Photosensitive member composed of charge transporting layer and charge generating layer

Photosensitive member composed of amorphous carbon charge transporting layer and charge generating layer

Photosensitive member

Organic photosensitive member with non-directive upheave patterns on the surface of protective layer made of amorphous carbon

Photosensitive member composed of charge transporting layer and charge generating layer

Photosensitive member of plasma polymerized amorphous carbon charge transporting layer and charge generating layer

Photosensitive member having an overcoat layer

Photosensitive member with hydrogen-containing carbon layer

Photosensitive member having undercoat layer of amorphous carbon

Photosensitive member having an amorphous carbon transport layer

Electrophotosensitive member with multiple layers of amorphous silicon

Electrophotosensitive member having alternating amorphous semiconductor layers

Electrophotosensitive member having a depletion layer

Photosensitive member having an overcoat layer and process for manufacturing the same

MINOLTA CO LTD

Ink jet recording head

Method for image formation

Photosensitive member-protective shutter

Image forming apparatus having a contact type charging device

Contact charger and image forming apparatus provided with same

YANAGIDA SHOZO

Pigment and process for producing the same, water base ink and process for producing the same