Inventor
SUGAI FUMIO
JP26 patents
⚠️ This page may combine multiple inventors who share the name “SUGAI FUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KYOCERA DOCUMENT SOLUTIONS INC
12 patentsUS9436105B2Sep 6, 2016
Triarylamine derivative and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC2 citations62
US10126667B2Nov 13, 2018
Quinone derivative and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9964869B2May 8, 2018
Triarylamine derivative, electrophotographic photosensitive member, and method for producing electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9690217B2Jun 27, 2017
Triarylamine derivative, electrophotographic photosensitive member, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC1 citations51
US9684253B2Jun 20, 2017
Triphenylamine derivative, electrophotographic photosensitive member, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9581921B2Feb 28, 2017
Electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9454091B2Sep 27, 2016
Hydrazone derivative of triphenylamine and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9447022B2Sep 20, 2016
Triarylamine derivative and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9376371B2Jun 28, 2016
Triphenylamine derivative, method for manufacturing the same, and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations50
US9783493B2Oct 10, 2017
Quinone derivative and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
US9783491B2Oct 10, 2017
Quinone derivative and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
US9494881B2Nov 15, 2016
Triarylamine derivative and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
MITA INDUSTRIAL CO LTD
7 patentsUS5994012ANov 30, 1999
Naphthoquinone derivative and electrophotosensitive material using same
MITA INDUSTRIAL CO LTD19 citations92
US5863688AJan 26, 1999
Naphthoquinone derivative
MITA INDUSTRIAL CO LTD26 citations92
US5976742ANov 2, 1999
Naphthoquinone derivative and electrophotographic material using the naphthoquinone derivative
MITA INDUSTRIAL CO LTD11 citations72
US5773613AJun 30, 1998
Tryptoanthrinimine derivative and electrophotosensitive material using the same
MITA INDUSTRIAL CO LTD11 citations72
US5977389ANov 2, 1999
Naphthoquinone derivative
MITA INDUSTRIAL CO LTD5 citations62
US5468874ANov 21, 1995
Benzothiophene/indole-substituted maleimide derivatives, photochromic material comprising said derivatives and optical recording material using the same material
MITA INDUSTRIAL CO LTD3 citations62
US5817810AOct 6, 1998
Tryptanthrine compounds
MITA INDUSTRIAL CO LTD4 citations60
KYOCERA MITA CORP
7 patentsUS6127076AOct 3, 2000
Naphthalenetetracarboxylic acid diimide derivatives and photosensitive material for electrophotography
KYOCERA MITA CORP26 citations90
US6174638B1Jan 16, 2001
Naphthalenetetracarboxylic acid diimide derivatives and photosensitive materials for electrophotography
KYOCERA MITA CORP16 citations81
US6346355B2Feb 12, 2002
Electrophotosensitive material
KYOCERA MITA CORP10 citations74
US6500592B2Dec 31, 2002
Electrophotosensitive material
KYOCERA MITA CORP2 citations62
US6395439B1May 28, 2002
Naphthoquinone derivative and electrophotosensitive material using the same
KYOCERA MITA CORP1 citations51
US6376142B2Apr 23, 2002
Electrophotosensitive material containing specific maleimide derivative
KYOCERA MITA CORP0 citations51
US7468230B2Dec 23, 2008
Wet-developing electrophotographic photoconductor and wet-developing image
KYOCERA MITA CORP0 citations41