Inventor
SUZUKA SUSUMU
JP35 patents
⚠️ This page may combine multiple inventors who share the name “SUZUKA SUSUMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
19 patentsUS6194535B1Feb 27, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK85 citations98
US6066428AMay 23, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK100 citations98
US6187492B1Feb 13, 2001
Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor
RICOH KK81 citations96
US6187494B1Feb 13, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor
RICOH KK62 citations96
US6172176B1Jan 9, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK49 citations96
US5976746ANov 2, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK65 citations96
US6790571B2Sep 14, 2004
Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus
RICOH KK31 citations92
US6664361B2Dec 16, 2003
Diphenol compound, aromatic polycarbonate and electrophotoconductive photoconductor
RICOH KK35 citations92
US6576386B1Jun 10, 2003
Aromatic block polycarbonate resin, diphenol compound for preparation of the polycarbonate resin, electrophotographic photoconductor, electrophotographic image forming apparatus and process, and process cartridge
RICOH KK39 citations92
US6486293B1Nov 26, 2002
Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor
RICOH KK36 citations92
US6303736B1Oct 16, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor
RICOH KK37 citations92
US6130310AOct 10, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK28 citations92
US6045959AApr 4, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK39 citations92
US7071285B2Jul 4, 2006
Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus
RICOH KK12 citations84
US5260156ANov 9, 1993
1,3-pentadiene derivatives and electrophotographic photoconductor using the same
RICOH KK9 citations74
US5166438ANov 24, 1992
1,3-pentadiene derivatives and electrophotographic photoconductor using the same
RICOH KK10 citations74
US5252750AOct 12, 1993
Polyolefin amino derivatives
RICOH KK4 citations63
US5068350ANov 26, 1991
Polyolefin derivatives
RICOH KK3 citations63
US4965157AOct 23, 1990
Electrophotographic photoconductor and polyolefin derivatives employed in the same photoconductor
RICOH KK2 citations63
HODOGAYA CHEMICAL CO LTD
15 patentsUS4780553AOct 25, 1988
Electrophotographic toner and compounds useful for the toner
HODOGAYA CHEMICAL CO LTD63 citations94
US4683188AJul 28, 1987
Electrophotographic toner containing metal complex charge control agent
HODOGAYA CHEMICAL CO LTD62 citations94
US6919419B2Jul 19, 2005
Aromatic block polycarbonate resin, diphenol compound for preparation of the polycarbonate resin, electro-photographic photoconductor, electro-photographic image forming apparatus and process, and process cartridge
HODOGAYA CHEMICAL CO LTD19 citations92
US4908225AMar 13, 1990
Use of a resin powder composition for electrostatic coating
HODOGAYA CHEMICAL CO LTD19 citations79
US6858161B2Feb 22, 2005
Method for purifying electronic item material
HODOGAYA CHEMICAL CO LTD10 citations73
US4694088ASep 15, 1987
Fluoran compounds
HODOGAYA CHEMICAL CO LTD7 citations73
US3930672AJan 6, 1976
Pressure-sensitive copying paper containing lactone compounds derived from pyridine-carboxylic acid
HODOGAYA CHEMICAL CO LTD7 citations73
US4019907AApr 26, 1977
Photosensitive azido color-forming element
HODOGAYA CHEMICAL CO LTD16 citations72
US4003747AJan 18, 1977
Photosensitive azide compound containing color-forming element
HODOGAYA CHEMICAL CO LTD8 citations72
US4521605AJun 4, 1985
Carbazole compounds and process for preparing the same
HODOGAYA CHEMICAL CO LTD16 citations71
US4612558ASep 16, 1986
Fluoran compounds
HODOGAYA CHEMICAL CO LTD4 citations61
US4539577ASep 3, 1985
Heat sensitive record material
HODOGAYA CHEMICAL CO LTD4 citations60
US4550329AOct 29, 1985
Heat sensitive record material
HODOGAYA CHEMICAL CO LTD4 citations59
US4642663AFeb 10, 1987
6-tetrahydrofurfurylaminofluoran compound useful as a color former on an heat sensitive recording sheet
HODOGAYA CHEMICAL CO LTD1 citations49
US4597795AJul 1, 1986
6-tetrahydrofurfurylaminofluoran compound useful as a color former
HODOGAYA CHEMICAL CO LTD1 citations49