Inventor
OKUNO YUKIHIKO
JP17 patents
Patents
17 patentsUS5724627AMar 3, 1998
Image forming apparatus which calculates toner consumption in accordance with tone correction
MINOLTA CO LTD82 citations96
US5963766AOct 5, 1999
Developing device
MINOLTA CO LTD77 citations95
US5995248ANov 30, 1999
Image forming device and method having MTF correction
MINOLTA CO LTD58 citations94
US6388768B2May 14, 2002
Image forming apparatus which excels in reproducibility of colors, fine lines and gradations even in a copy made from a copied image
MINOLTA CO LTD41 citations92
US6281961B1Aug 28, 2001
Developing device with mechanism for smoothly circulating developer
MINOLTA CO LTD24 citations92
US6122472ASep 19, 2000
Developing apparatus having improved developer distribution
MINOLTA CO LTD39 citations92
US6028957AFeb 22, 2000
Image forming apparatus having a noise removing unit
MINOLTA CO LTD51 citations92
US6021288AFeb 1, 2000
Image forming apparatus
MINOLTA CO LTD19 citations92
US5999279ADec 7, 1999
Image forming apparatus having an MTF correction unit
MINOLTA CO LTD39 citations92
US5978615ANov 2, 1999
Tandem-type image forming apparatus and image forming condition determination method used in this tandem-type image forming apparatus
MINOLTA CO LTD31 citations92
US5966222AOct 12, 1999
Image forming apparatus having a saturation correction unit
MINOLTA CO LTD34 citations92
US5822079AOct 13, 1998
Digital image forming apparatus with test image optimization
MINOLTA CO LTD28 citations92
US5708917AJan 13, 1998
Toner replenishment device for an image forming apparatus which employs pixel density and toner density information
MINOLTA CO LTD34 citations92
US5694223ADec 2, 1997
Digital image forming apparatus which specifies a sensitivity characteristic of a photoconductor
MINOLTA CO LTD31 citations92
US5708918AJan 13, 1998
Image formation apparatus that can maintain appropriately toner density in developing device
MINOLTA CO LTD11 citations74
US5530530AJun 25, 1996
Apparatus for measuring developer density
MINOLTA CO LTD15 citations74
US5715067AFeb 3, 1998
Digital image forming apparatus and method with variable duty ratio
MINOLTA CO LTD7 citations73