Inventor

HAYATA HIROFUMI

JP36 patents

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

HAYATA HIROFUMI

KONISHIROKU PHOTO IND

Metal phthalocyanine crystal particles, production method thereof, and electrophotographic photoreceptor as well as electrophotographic process using the same

Electrophotographic photoreceptor, electrophotographic process, and electrophotographic image forming method

Electrophotographic photoreceptor

Electrophotoreceptor

Electrophotographic photoreceptor

Photoreceptor

Image forming method using an imidazole-perylene electrophotographic photoreceptor

Electrophotographic photoreceptor, electrophotographic process, and electrophotographic image forming method

Electrophotography photosensitive element

Electrophotographic photoreceptor with aliphatic amine containing electron transporting layer

Electrophotographic photoreceptor containing perylenes

Electrophotographic photoreceptor

Electrophotographic photoreceptor, image forming apparatus and processing cartridge

Electrophotoreceptor, image forming method, image forming apparatus and processing cartridge

Electrophotographic photoreceptor

Electrophotographic photoreceptor having charge transport material

Bisstyryl compound and the electrophotographic photoreceptors relating thereto

KONICA MINOLTA BUSINESS TECH

Organic photoreceptor, process cartridge, image forming method, and image forming apparatus

Electrophotographic photoreceptor, image forming apparatus, and method for image formation

Electrophotographic toner, and image forming method and image forming apparatus employing the same

Electrophotographic photoreceptor, a processing cartridge, an image forming apparatus and an image forming method

Image forming apparatus and image forming method

KONICA MINOLTA INC

Photoresponsive material, adhesive, optical switching material, toner, and image forming method

Electrophotographic photoreceptor

Electrophotographic photoreceptor, image forming method, and image forming apparatus

Photoresponsive low-molecular weight material, adhesive, toner, and image forming method

Electrophotographic photoreceptor and image forming apparatus and image forming method using the same

FUJITA TOSHIYUKI

Electrophotographic photoreceptor

Organic photoreceptor, image forming apparatus and process cartridge

Organic photoreceptor, image forming apparatus and process cartridge

Organic photoreceptor and preparation method thereof

KURACHI MASAHIKO

Organic photoreceptor, image forming apparatus, process cartridge, and color image forming apparatus

Electrophotographic photoreceptor, image forming apparatus, and process cartridge

ISHIDA TAKESHI

Organic photoreceptor, manufacturing method of organic photoreceptor, and image forming apparatus

HAYATA HIROFUMI

Image forming method and image forming apparatus

OGURA KUNIHIRO

Electrophotographic photoreceptor, and process cartridge and image forming apparatus employing the same