Inventor
HAMA TAKASHI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “HAMA TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
25 patentsUS5883732AMar 16, 1999
Optical scanner
SEIKO EPSON CORP52 citations96
US6336008B1Jan 1, 2002
Image forming apparatus with adjustable image density and method
SEIKO EPSON CORP19 citations93
US7260336B2Aug 21, 2007
Image forming apparatus and image forming method for performing density control of toner images
SEIKO EPSON CORP21 citations92
US7072597B2Jul 4, 2006
Image forming apparatus and image method for forming toner images with optimized patch image density
SEIKO EPSON CORP32 citations92
US6909858B2Jun 21, 2005
Image forming apparatus, toner-adhesion calculation method and data processing method
SEIKO EPSON CORP28 citations92
US6871026B2Mar 22, 2005
Apparatus for and method of forming image under controlled image forming condition
SEIKO EPSON CORP34 citations92
US6445483B2Sep 3, 2002
Optical scanning apparatus
SEIKO EPSON CORP23 citations92
US6415114B1Jul 2, 2002
Image forming apparatus and method
SEIKO EPSON CORP20 citations92
US6341203B1Jan 22, 2002
Image forming apparatus and method with adjustable image density factor
SEIKO EPSON CORP18 citations92
US5781323AJul 14, 1998
Optical scanner
SEIKO EPSON CORP19 citations92
US5673136ASep 30, 1997
Optical scanner
SEIKO EPSON CORP22 citations92
US5600476AFeb 4, 1997
Optical scanner
SEIKO EPSON CORP29 citations92
US7680425B2Mar 16, 2010
Image forming apparatus and method for controlling tone characteristics based on tone-control patch image
SEIKO EPSON CORP14 citations84
US7269362B2Sep 11, 2007
Image forming apparatus, control method and toner consumption calculating apparatus and method
SEIKO EPSON CORP13 citations84
US7068957B2Jun 27, 2006
Image forming apparatus and image forming method involving application of a developing bias to a toner carrier
SEIKO EPSON CORP15 citations84
US6934481B2Aug 23, 2005
Image forming apparatus and image forming method
SEIKO EPSON CORP13 citations84
US6658221B2Dec 2, 2003
Method of and apparatus for measuring quantity of toner on belt-shaped image carrier
SEIKO EPSON CORP18 citations84
US6597878B2Jul 22, 2003
Apparatus for measuring quantity of toner, and image forming apparatus comprising measuring apparatus
SEIKO EPSON CORP13 citations84
US7251423B2Jul 31, 2007
Image forming apparatus and image forming method
SEIKO EPSON CORP9 citations74
US5877883AMar 2, 1999
Optical scanner
SEIKO EPSON CORP9 citations74
US5751463AMay 12, 1998
Optical scanner
SEIKO EPSON CORP9 citations74
US7536126B2May 19, 2009
Apparatus for forming image-quality evaluation image
SEIKO EPSON CORP2 citations63
US6621991B2Sep 16, 2003
Image forming apparatus with predetermined target density and method
SEIKO EPSON CORP2 citations63
US5764397AJun 9, 1998
Optical scanner
SEIKO EPSON CORP3 citations63
US5453819ASep 26, 1995
Charger apparatus
SEIKO EPSON CORP6 citations62
OGASAWARA HIDETO
2 patentsUS9153757B2Oct 6, 2015
Thermoplastic resin composition for reflective material, reflective plate, and light-emitting diode element
OGASAWARA HIDETO3 citations58
US9151455B2Oct 6, 2015
Thermoplastic resin composition for reflector, reflector plate, and light-emitting diode element
OGASAWARA HIDETO0 citations48