Inventor
ISHIKAWA HIROKO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA HIROKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CHEMICAL CO LTD
7 patentsUS5626999AMay 6, 1997
Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same
HITACHI CHEMICAL CO LTD7 citations73
US5304445AApr 19, 1994
Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same
HITACHI CHEMICAL CO LTD10 citations73
US5352834AOct 4, 1994
Electrophotographic member
HITACHI CHEMICAL CO LTD10 citations72
US5160487ANov 3, 1992
Electrophotographic member
HITACHI CHEMICAL CO LTD6 citations72
US5272030ADec 21, 1993
Electrophotographic member comprising enamine derivatives
HITACHI CHEMICAL CO LTD2 citations62
US5403958AApr 4, 1995
Electrophotographic member
HITACHI CHEMICAL CO LTD3 citations61
US5382687AJan 17, 1995
Enamine derivatives
HITACHI CHEMICAL CO LTD1 citations51
ISHIKAWA HIROKO
6 patentsUS8727347B2May 20, 2014
Sheet feeding apparatus
ISHIKAWA HIROKO8 citations82
US8284465B2Oct 9, 2012
Image scanner, and method and computer readable medium therefor
ISHIKAWA HIROKO8 citations82
US8085414B2Dec 27, 2011
Image forming device configured to execute scan-to-memory and direct print functions when connected to an external device
ISHIKAWA HIROKO5 citations61
US9360595B2Jun 7, 2016
Antifog optical article and manufacturing method thereof
ISHIKAWA HIROKO0 citations50
US8928959B2Jan 6, 2015
Image reading apparatus facilitating jam clear
ISHIKAWA HIROKO1 citations50
US8411336B2Apr 2, 2013
Image reader, image forming device having the same, and computer-readable storage medium for the same
ISHIKAWA HIROKO1 citations50