Inventor
YOSHIDA YOSHIKI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIDA YOSHIKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
13 patentsUS5376994ADec 27, 1994
Compact BI-color electrophotographic image forming apparatus
RICOH KK36 citations92
US5309182AMay 3, 1994
Bicolor image forming apparatus for forming a bicolor image on a photoconductive element
RICOH KK26 citations92
US4967284AOct 30, 1990
Image forming apparatus and method of controlling output of semiconductor laser
RICOH KK44 citations92
US5027117AJun 25, 1991
Conversion using a variable reference based on image density
RICOH KK39 citations91
US7589846B2Sep 15, 2009
Method and apparatus for image forming capable of effectively correcting alignment errors of elementary color outputs to be superposed into an image
RICOH KK13 citations84
US7528851B2May 5, 2009
Method and apparatus for forming images capable of reducing color registration errors
RICOH KK8 citations84
US7505057B2Mar 17, 2009
Apparatus, method, and program for color image forming capable of efficiently correcting displacement
RICOH KK8 citations84
US7355765B2Apr 8, 2008
Optical scanning apparatus and an image formation apparatus therewith
RICOH KK10 citations84
US5068676ANov 26, 1991
Image data storing device for an image forming apparatus
RICOH KK13 citations73
US4933874AJun 12, 1990
Printer
RICOH KK15 citations73
US7573494B2Aug 11, 2009
Image forming apparatus, an optical scanning apparatus and an image forming method
RICOH KK4 citations63
US7136085B2Nov 14, 2006
Image-forming apparatus and optical scanner
RICOH KK3 citations63
US6788320B2Sep 7, 2004
Image formation apparatus and registration method
RICOH KK6 citations63
DAINIPPON PRINTING CO LTD
5 patentsUS6421181B1Jul 16, 2002
Lenticular lens sheet and rear projection screen
DAINIPPON PRINTING CO LTD22 citations92
US7072109B2Jul 4, 2006
Projection screen and projection display
DAINIPPON PRINTING CO LTD17 citations84
US7173761B2Feb 6, 2007
Fresnel lens sheet
DAINIPPON PRINTING CO LTD7 citations74
US6947225B2Sep 20, 2005
Fresnel lens sheet, process of producing Fresnel lens sheet, mold for use in the production process, and rear projection screen comprising the Fresnel lens sheet
DAINIPPON PRINTING CO LTD6 citations63
US6762883B2Jul 13, 2004
Lenticular lens sheet and rear projection screen
DAINIPPON PRINTING CO LTD5 citations62
FUJISAWA PHARMACEUTICAL CO
4 patentsUS5244890ASep 14, 1993
Cephem compounds
FUJISAWA PHARMACEUTICAL CO37 citations96
US5401734AMar 28, 1995
Cephem compounds
FUJISAWA PHARMACEUTICAL CO23 citations92
US5532354AJul 2, 1996
Intermediates for cephem compounds
FUJISAWA PHARMACEUTICAL CO12 citations73
US6150351ANov 21, 2000
Cephem compounds and pharmaceutical use thereof
FUJISAWA PHARMACEUTICAL CO1 citations52