Inventor

YAMANAMI HIROFUMI

JP6 patents

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

RICOH KK

5 patents

US4775605AOct 4, 1988

Layered photosensitive material for electrophotography

RICOH KK75 citations94

US6355390B1Mar 12, 2002

Electrophotographic photoconductor, production process thereof, electrophotographic image forming method and apparatus, and process cartridge

RICOH KK43 citations91

US4871635AOct 3, 1989

Electrophotographic photoconductor layered element comprising salt material undercoat layer on conductive support

RICOH KK23 citations78

US7348115B2Mar 25, 2008

Electrophotographic photoconductor, process cartridge, image forming apparatus and image forming method

RICOH KK2 citations60

US7267914B2Sep 11, 2007

Electrophotographic photoconductor, process cartridge, image forming apparatus and image forming method

RICOH KK2 citations60

YAMANAMI HIROFUMI

1 patent

US9063441B2Jun 23, 2015

Electrophotographic photoconductor, image forming apparatus, and process cartridge

YAMANAMI HIROFUMI2 citations49